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Participation in medical decision-making across Europe: An international longitudinal multicenter study

Published online by Cambridge University Press:  23 March 2020

A. Bär Deucher
Affiliation:
Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, PO Box 1930Zurich8021, Switzerland
MP Hengartner
Affiliation:
Department of Applied Psychology, Zurich University of Applied Sciences (ZHAW), Pfingstweidstrasse 96, PO Box 707Zurich8037, Switzerland
W. Kawohl
Affiliation:
Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, PO Box 1930Zurich8021, Switzerland
J. Konrad
Affiliation:
Section Process-Outcome Research, Department of Psychiatry II, Ulm University, Ludwig-Heilmeyer-Str. 2 Günzburg89312, Germany
B. Puschner
Affiliation:
Section Process-Outcome Research, Department of Psychiatry II, Ulm University, Ludwig-Heilmeyer-Str. 2 Günzburg89312, Germany
E. Clarke
Affiliation:
Kings College London, Section for Recovery, Institute of Psychiatry, Psychology & Neuroscience, 16 De Crespigny Park, LondonSE5 8AF, UK
M. Slade
Affiliation:
Kings College London, Section for Recovery, Institute of Psychiatry, Psychology & Neuroscience, 16 De Crespigny Park, LondonSE5 8AF, UK
V. Del Vecchio
Affiliation:
Department of Psychiatry, University of Naples SUN, Largo Madonna delle Grazie 1, Naples80138, Italy
G. Sampogna
Affiliation:
Department of Psychiatry, University of Naples SUN, Largo Madonna delle Grazie 1, Naples80138, Italy
A. Égerházi
Affiliation:
Department of Psychiatry, Medical and Health Science Centre, University of Debrecen 98, Nagyerdei krt, Debrecen, 4012, Hungary
Á. Süveges
Affiliation:
Department of Psychiatry, Medical and Health Science Centre, University of Debrecen 98, Nagyerdei krt, Debrecen, 4012, Hungary
M. Krogsgaard Bording
Affiliation:
Aalborg University Hospital, Psychiatry, Mølleparkvej 10 Aalborg9000, Denmark
P. Munk-Jørgensen
Affiliation:
Department M, Aarhus University Hospital, Skovagervej 2, Risskov8240, Denmark
W. Rössler
Affiliation:
Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, PO Box 1930Zurich8021, Switzerland
Corresponding
E-mail address:

Abstract

Background

The purpose of this paper was to examine national differences in the desire to participate in decision-making of people with severe mental illness in six European countries.

Methods

The data was taken from a European longitudinal observational study (CEDAR; ISRCTN75841675). A sample of 514 patients with severe mental illness from the study centers in Ulm, Germany, London, England, Naples, Italy, Debrecen, Hungary, Aalborg, Denmark and Zurich, Switzerland were assessed as to desire to participate in medical decision-making. Associations between desire for participation in decision-making and center location were analyzed with generalized estimating equations.

Results

We found large cross-national differences in patients’ desire to participate in decision-making, with the center explaining 47.2% of total variance in the desire for participation (P < 0.001). Averaged over time and independent of patient characteristics, London (mean = 2.27), Ulm (mean = 2.13) and Zurich (mean = 2.14) showed significantly higher scores in desire for participation, followed by Aalborg (mean = 1.97), where scores were in turn significantly higher than in Debrecen (mean = 1.56). The lowest scores were reported in Naples (mean = 1.14). Over time, the desire for participation in decision-making increased significantly in Zurich (b = 0.23) and decreased in Naples (b = −0.14). In all other centers, values remained stable.

Conclusions

This study demonstrates that patients’ desire for participation in decision-making varies by location. We suggest that more research attention be focused on identifying specific cultural and social factors in each country to further explain observed differences across Europe.

Type
Original article
Copyright
Copyright © European Psychiatry 2016

1 Introduction

1.1. Patients’ autonomy

One of the first empirical studies on patient participation in medical decision-making examined whether patients wish to make decisions themselves [Reference Ende, Kazis, Ash and Moskowitz1]. Autonomy refers to the decision-making dimension of the patient’s role, and enhancing patient autonomy means helping patients to make their own decisions [Reference Nease and Brooks2]. Considerations of a patient’s autonomy in the health care context tend to focus most strongly on the idea that patients should be allowed and enabled to make autonomous decisions about their health care [Reference Beauchamp and Childress3Reference Walker5]. Patient involvement and patient participation in decision-making are therefore regarded as a feature of good quality of care, which is valued in its own right [Reference Entwistle and Watt6, Reference Farrel7]. Nowadays, autonomy is a key concern in biomedical ethics and many countries have passed legislation to protect patients’ autonomy and to provide informed consent for medical interventions [Reference Beauchamp and Childress3].

1.2. Shared decision-making

Shared decision-making means that information exchange is a two-way process during consultation. Both the health care professional and the patient engage in deliberation and take the decision. Self-determination of patients and their right to a comprehensive explanation of the illness and all its treatment possibilities are the fundamental prerequisites of this model [Reference Hamann, Cohen, Leucht, Busch and Kissling8]. The model contrasts with:

  • the ‘paternalistic’ model, where information is given to the patient and the deliberation and decision are made by the health care professional, or;

  • an ‘informed’ model, where information is given to the patient and the patient deliberates and decides [Reference Charles, Gafni, Whelan and O’Brien9].

The National Institute for Clinical Excellence (NICE) has continuously promoted shared decision-making by ensuring that its clinical guidelines address issues of importance to both patients and health care professionals [Reference Stokes10]. Shared decision-making is recommended in systematic reviews [Reference Duncan, Best and Hagen11].

1.3. Preferences for participation in decision-making among patients with serious mental illness

Reviews of shared decision-making in persons with schizophrenia [Reference Hamann, Cohen, Leucht, Busch and Kissling8] and depression [Reference Clever, Ford, Rubenstein, Rost, Meredith and Sherbourne12] showed that patients and physicians found shared decision-making acceptable and did in fact engage in shared decision-making, which resulted in improvements in patients’ knowledge about their illness and a higher level of perceived involvement in decision-making. Patients generally express a desire for greater participation in decision-making about psychiatric care than what they are currently experiencing. Concerning the use of new psychiatric medication, most participants prefer autonomous or shared roles. A passive role in medication decisions in psychiatric care was observed to be less likely than a passive role in general medical care [Reference Adams, Darke and Wolford13].

Hamann et al. [Reference Hamann, Cohen, Leucht, Busch and Kissling8] showed that the desire to participate in decision-making was higher in inpatients with experiences of involuntary treatment, with negative attitudes toward medication, with a higher level of education, with lower treatment satisfaction (e.g. general treatment satisfaction, trust in clinicians, and fairness), with better-perceived decision-making skills, in patients of female gender and in younger patients. It was, furthermore, demonstrated that patients with schizophrenia strongly wish to participate in medical decisions on an equal footing with their doctors, rather than to completely take over decisional control [Reference Hamann, Cohen, Leucht, Busch and Kissling8,Reference Hamann, Mendel, Reiter, Cohen, Bühner and Schebitz14,Reference Hamann, Bieber Ch, Elwyn, Wartner, Hörlein and Kissling15]. Moreover, a large study in the United States with a focus on outcomes in adults diagnosed with depressive disorders showed that greater involvement in depression care resulted in higher participant satisfaction and lower depression scores [Reference Swanson, Bastani, Rubenstein, Meredith and Ford16]. In the CEDAR study, people with severe mental illness stated a preference for a shared decision-making style [Reference Puschner, Becker, Mayer, Jordan, Maj and Fiorillo17]. Patients indicated that involvement in decision-making during their last treatment session was mainly shared (shared decision model) [Reference Puschner, Becker, Mayer, Jordan, Maj and Fiorillo17] and most people wanted to receive information on all aspects of their treatment [Reference Giacco, Luciano, Del Vecchio, Sampogna, Slade and Clarke18].

1.4. Influence of culture

There is little knowledge about what actually constitutes ‘cultural’ differences in mental health. Triggered by sociopolitical factors (among others), participation preferences are considered to have increased in the past decades [Reference Chewning, Bylund and Shah19, Reference Say, Murtagh and Thomson20]. Movements promoting the rights of citizens, consumers and patients, who in western countries have become increasingly active since the 1960s, are considered to have changed the ‘culture’ of the medical health care system [Reference Coulter21, Reference Gillespie, Florin and Gilliam22]. Overall, ‘culture’ is reported to be an important factor explaining differences in patients’ preferences, but results remain inconsistent [Reference Hamann, Bieber Ch, Elwyn, Wartner, Hörlein and Kissling15]. The extent to which patients expect to be actively involved in treatment decisions varies according to the prevailing medical culture. If it is paternalistic, both doctors and patients are likely to assume that decisions are the responsibility of the doctor only, whereas in a more egalitarian culture a partnership or shared decision-making approach may be preferred [Reference Coulter and Jenkinson23].

In a conceptual paper, Charles et al. [Reference Charles, Gafni, Whelan and O’Brien24] discussed the influence of culture on the process of treatment decision-making and, in particular, shared treatment decision-making in the physician–patient encounter. It was noted that the nature of the encounter is influenced by cultural expectations, e.g. the patients’ and physicians’ role expectations and expectations as to who is involved in decision-making. Finally, in the DIALOG trial (a computer-mediated procedure to structure patient–clinician dialogue), the effectiveness of a novel intervention was studied across six European community mental healthcare settings (incl. Germany, UK, Switzerland, Spain). It was assessed whether the effectiveness of structured patient–clinician communication varies between services in different countries. In the centers in which the DIALOG intervention proved most effective (namely London and Granada), patients had comparatively high symptom levels (London), more unmet needs for care, a shorter history in mental healthcare and fewer hospital admissions (London and Granada) [Reference van den Brink, Wiersma, Wolters, Bullenkamp, Hansson and Lauber25].

Although patients’ involvement and participation in decision-making is regarded as a feature of good quality of care [Reference Beauchamp and Childress3], little is known about national differences in the preferences for participation in decision-making of people with severe mental illness. The main objective of the present study was thus to study whether patients’ participation preferences differed across six European countries, both in addition to and independent of patient characteristics. Since patients’ preferences are likely to develop over time and may change at different stages of their illness [Reference Puschner, Becker, Mayer, Jordan, Maj and Fiorillo17, Reference Butow, Maclean, Dunn, Tattersall and Boyer26], we also examined whether there was an interaction effect between study center and time. Based on the literature, we hypothesized that the desire for participation in decision-making would vary substantially across countries.

2. Material and methods

2.1. Sample

The data were taken from the study “Clinical Decision-making and Outcome in Routine Care for People with Severe Mental Illness” (CEDAR; ISRCTN75841675) [Reference Puschner, Becker, Mayer, Jordan, Maj and Fiorillo17]. CEDAR is a naturalistic prospective longitudinal observational study with bimonthly assessments during a 12-month observation period (T0–T6) carried out in six European countries (Germany, UK, Italy, Hungary, Denmark and Switzerland). First, CEDAR established a methodology to assess clinical decision-making in people with severe mental illness. Specific instruments were developed to measure clinical decision-making style, key elements of clinical decision-making in routine care, as well as clinical decision-making involvement and satisfaction from patient and clinician perspectives. Second, these instruments were applied in a multi-national prospective observational study. This study investigated the immediate, short- and long-term effect of clinical decision-making on crucial dimensions of clinical outcome (symptom level, quality of life, needs) by taking into account significant variables moderating the relationship between clinical decision-making and outcome. Participants in the CEDAR study were recruited between November 2009 and December 2010 from caseloads of outpatient/community mental health services at six centers: Department of Psychiatry II, Ulm University, Germany (coordinating center); South London and Maudsley NHS Foundation Trust, London, the U.K.; the Department of Psychiatry at University of Naples SUN, Italy; the Department of Psychiatry at Debrecen University, Hungary; the Unit for Psychiatric Research at Aalborg University Hospital (former Aarhus University Hospital), Denmark; and the former Department of General and Social Psychiatry at the University of Zurich, Switzerland. Ethics committees approved the study in all centers. After being informed about the goal, the funding of the study, the right to refuse to participate or to withdraw consent without adverse consequences, all participants gave their written informed consent. The CEDAR study was conducted in accordance with the Helsinki Declaration of 1975, as revised in 2008, of the World Medical Association [Reference Puschner, Becker, Mayer, Jordan, Maj and Fiorillo17].

The six study sites reflect the diversity across Europe in the organization of mental health services.

2.1.1. Ulm, Germany (coordinating center)

The department is responsible for the provision of mental health care in a large catchment area in rural Bavaria (population 671,000). Multidisciplinary teams (psychiatrists, psychologists, social workers, nurses and occupational therapists) offer a full range of pharmacological and psychosocial interventions in inpatient, outpatient and daycare clinics. The department collaborates closely with office-based psychiatrists and psychotherapists in the area.

2.1.2. London (UK)

The site in comprises three specialist community teams: early psychosis, assertive outreach and rehabilitation and recovery. All teams are multidisciplinary, comprising clinical psychology, nursing, occupational therapy, psychiatry and social work professionals, as well as support workers and administrative staff. These teams provide services across the London Borough of Croydon (population 330,000) as part of a range of services for adults aged 18–65, including three community mental health teams, a home treatment team, a community forensic team and in-patient beds.

2.1.3. Naples, Italy

The department includes inpatient and outpatient units and a 1-day hospital. The outpatient units include specialist clinical teams for the management and treatment of psychotic disorders, mood disorders, eating disorders and obsessive-compulsive disorders. Specialist teams for early detection and management of psychoses and for cognitive and psychosocial rehabilitation are available.

2.1.4. Debrecen, Hungary

The department provides in- and outpatient mental health care for the city of Debrecen (population 200,000). The team is completed by an occupational therapist and a social worker professional that maintain contact with the regional rehabilitation institutions and mental homes.

2.1.5. Aalborg, Denmark

The Psychiatry Region North includes various treatment centers, including inpatient treatment, outpatient teams and early psychosis teams. The collaborating centers in the CEDAR study were organized within the universities of Aarhus, Aalborg, Copenhagen and Southern Denmark. Others were provincial hospitals with links to Aarhus University. Furthermore, CEDAR collaborated with office-based psychiatrists.

2.1.6. Zurich, Switzerland

The department takes responsibility for a defined catchment area in Zurich City of about 390,000 inhabitants. It comprises 488 beds and additionally offers specialized care in a crisis center and a center for psychiatric rehabilitation [Reference Puschner, Becker, Mayer, Jordan, Maj and Fiorillo17].

2.1.7. Sampling procedure

A convenience sample of patients was recruited from mental teams. Potential patient participants were identified by clinicians. The referring clinician asked patients who met inclusion criteria to consent to researcher contact. A researcher then met the patient, explained the study and obtained signed informed consent. In nearly all study centers, the patient nominated a key clinician of any profession whom they saw regularly. In Denmark, it was reversed: patients were recruited via staff. Data was collected using questionnaires (filled in by the patient and his or her key worker) or through interviews conducted by the CEDAR researchers. Data entry was via computer or paper-pencil forms. See Puschner et al. [Reference Puschner, Steffen, Slade, Kaliniecka, Maj and Fiorillo27] for further details on the rationale and design of the CEDAR study.

Participating staff from the CEDAR study were in their mid-40s, on average, and their mean time of working in mental health services was 15 years. The category of professions included psychiatrists, psychologists, social workers and others (nurse, district nurse, support time and recovery worker and psychiatric trainee) [Reference Puschner, Steffen, Slade, Kaliniecka, Maj and Fiorillo27].

2.2. Participants

Inclusion criteria were:

  • adult age (18–60 years) at intake;

  • mental disorder of any kind as main diagnosis established by case notes or staff communication using SCID criteria [Reference First, Spitzer, Gibbon and Williams28];

  • presence of severe mental illness (Threshold Assessment Grid [TAG] ≥ 5 points and illness duration ≥ 2 years; [Reference Slade, Powell, Rosen and Strathdee29]);

  • expected contact with mental health services (excluding inpatient services) during the time of study participation;

  • sufficient command of the host country’s language;

  • capability of giving informed consent.

Exclusion criteria were:

  • main diagnosis of learning disability;

  • dementia;

  • substance use or organic brain disorder;

  • cognitive impairment severe enough to make it impossible to give meaningful information on study measures;

  • treatment by forensic mental health services [Reference Puschner, Becker, Mayer, Jordan, Maj and Fiorillo17].

A total of 708 patients were screened for eligibility, of which 588 were included. The reason for exclusion was not meeting inclusion criteria (n = 120). The study uses data of participants (n = 514) who completed the time points baseline (T0) and one-year follow-up (T6). All data on patients’ sociodemographic and clinical characteristics were assessed through the Client Sociodemographic and Service Receipt Inventory-European Version (CSSRI-EU) questionnaire at baseline (T0) and at one-year follow-up (T6) [Reference Puschner, Becker, Mayer, Jordan, Maj and Fiorillo17].

2.3. Measures and Instruments

The Clinical Decision-Making Style (CDMS) [Reference Puschner, Neumann, Jordan, Slade, Fiorillo and Giacco30] is an adaptation of the Autonomy Preference Index (API; [Reference Ende, Kazis, Ash and Moskowitz1]) for use in people with severe mental illness. The subscale “Participation in Decision-Making” (CDMS-PD) consists of 15 items, each rated on a five-point Likert scale ranging from 0–4 (with a higher score indicating a higher desire by the patient to be an active participant in decision-making). Categorical sum scores were formulated on the basis of utility, where an emphasis was placed on separating categories according to clinical meaningfulness. Categories of decision-making models according to the CDMS-PD subscale were “passive” (CDMS-PD < 1.5, defined as the clinician taking the decision, with or without considering the views of the patient), “shared” (1.5− ≤ CDMS-PD ≤ 2.5, defined as decisions being made jointly between clinician and patient) and “active” (CDMS-PD > 2.5, defined as the patient taking the decision, with or without considering the views of the clinician). These categories distinguish groups by their ordinal nature but not by a specific value assigned to each category. The paternalistic model corresponds to a passive involvement of the patient; the shared decision-making and the informed choice model correspond to an active involvement of the patient. The CDMS was measured at baseline (T0) and at one-year-follow-up (T6). For a detailed account of the CDMS, see Puschner et al. [Reference Puschner, Neumann, Jordan, Slade, Fiorillo and Giacco30].

2.4. Statistical analysis

Baseline characteristics across centers were examined with contingency tables and χ2 significance tests for categorical variables and with independent sample t-tests for continuous variables. The repeated measures of participation in medical decision-making over time were examined with a series of generalized estimating equations (GEE). These models were introduced to fit regression analyses that account for within-subject correlation, which is an inherent part of longitudinal studies that rely on repeated measures [Reference Zeger, Liang and Albert31]. Owing to the distribution of the dependent variable (CDMS-PD), a normal distribution with an identity link-function best fitted our data. A robust maximum likelihood estimator was used to reduce the effects of outliers and influential observations. The intercept and slope factor was included in all analyses, which is a common procedure in longitudinal data modeling [Reference Twisk32]. To adjust for the within-subject correlation, the slope factor was also modeled as an interaction effect with the predictor variable to examine changes in the desire to participate in decision-making over time. To examine group differences, pairwise comparisons with sequential Bonferroni correction for multiple testing were conducted. Interaction effects of categorical and continuous predictors with the time-trend were indicated with unstandardized regression coefficients (b). The proportion of total variance explained in the repeated outcome was indicated with the partial eta squared as estimated with a repeated measures general linear model (GLM). All analyses were carried out with SPSS version 20 for Macintosh.

3. Results

The descriptive statistics are indicated in Table 1. For all variables the differences across centers were statistically significant. According to a series of bivariate GEE comprising center and the nine patient variables indicated in Table 1, center was the substantially strongest bivariate predictor of participation in decision-making. Center explained 47.2% of total variance in the CDMS-PD over time (χ 2 = 529.065, df = 5, P < 0.001), which corresponds to a large effect size. The highest mean CDMS-PD scores pooled over time were reported in London (2.28), Ulm (2.14) and Zurich (2.15), followed by Aalborg (1.98), which in turn was significantly higher than Debrecen (1.53). The distinctly and statistically significantly lowest CDMS-PD score was reported in Naples (1.12). In Zurich, the CDMS-PD increased significantly from t0 to t6, whereas in Naples it declined significantly over time; at the other study sites, it remained stable (Table 2).

Table 1 Baseline patient characteristics (N = 514).

Table 2 Repeated measurement of the CDMS in association with center location.

CDMS: Clinical Decision Making Style.

Since patients’ characteristics between the respective centers differed significantly (Table 1), possible cultural differences on CDMS could be attributed to regional differences as well as to distinct patient characteristics. Therefore, to answer the question of whether cultural influences were independent of distinct patient characteristics across centers, we regressed all nine predictors from Table 1 (i.e., gender, age, marital status, ethnic group, years in school, living situation, employment status, state benefits and diagnosis) separately on the CDMS-PD. Of the nine predictor variables listed in Table 1, age (χ2 = 10.967, df = 1, P = 0.001), marital status (χ2 = 14.133, df = 1, P < 0.001), living situation (χ2 = 36.674, df = 2, P < 0.001) and state benefits (χ2 = 6.628, df = 1, P = 0.010) were significantly related to the repeated measures of the CDMS-PD according to bivariate GEE. These variables were thus included in addition to center in a fully adjusted GEE model. We additionally added the repeated TAG score, which is a measure of illness severity and which also related weakly to the CDMS-PD (χ2 = 5.954, df = 1, P = 0.015). In this multivariate model, only center (χ2 = 184.221, df = 5, P < 0.001) and the interaction term between center and time (χ2 = 33.244, df = 6, P < 0.001) remained statistically significant predictors of the CDMS-PD. The results for center are shown in Table 3. The adjustment for significant covariates did not alter the results substantially. In accordance with the unadjusted analysis, London (2.27), Ulm (2.15) and Zurich (2.14) showed the highest pooled CDMS scores over time, followed by Aalborg (1.96), Debrecen (1.54), and Naples (1.14). In this multivariate model, we again observed a significant increase in the CDMS-PD over time in Zurich as well as a significant decrease over time in Naples.

Table 3 Repeated measurement of the CDMS in association with center location, adjusted for patient’s age, marital status, living situation, state benefits, as well as repeated TAG scores.

CDMS: Clinical Decision Making Style.

4. Discussion

The aim of this study was to examine differences between European countries in patients’ participation in medical decision-making by focusing on psychiatric services in six different European countries. We found large differences between the study centers in patients’ wishes to participate in decision-making, with the center location as the predictor variable explaining 47.2% of total variance in the CDMS-PD. Moreover, those national differences were independent of patient characteristics including gender, age, marital status, ethnic group, years in school, living situation, employment status, state benefits and diagnosis.

Participants from North-western Europe (Ulm, London, Aalborg and Zurich) showed moderate scores over time on CDMS-PD, indicating a preference for shared decision-making, with a higher preference for active decision-making mainly in Ulm, London and Zurich. On the other hand, participants from Southern Europe (Naples) showed a preference for passive decision-making. While participants from Zurich increased in their wish to participate in decision-making over time, the opposite was observed in Naples, where participants’ initial low preference for autonomous decision-making declined further after twelve months.

Our results are in line with the results of a study on communication, information, involvement and choice in clinical decision-making, in which 1000 interviews were carried out in nine countries (e.g. UK, Germany, Poland, Italy) with random samples of the adult population. The results show that a more paternalistic view of the doctor–patient relationship prevailed in Poland and Spain compared to the six other countries: 91% of Swiss and 87% of German respondents believed that the patient should have a key role in treatment decisions, either by sharing responsibility with the doctor or by being the primary decision-maker. The proportion of Polish patients who shared that opinion was only 59%, and in Spain it was only 44% [Reference Coulter and Magee33]. Similar results were obtained in a study with patients with urinary incontinence. In this study, preferences for involvement in treatment decision-making in 15 European countries were explored. Women in North-western European countries (e.g. Germany, UK and Switzerland) wished to be involved in the treatment decision-making process with a collaborative role. Women in Denmark opted for a more active role, preferring more active involvement than women in Southern European countries (e.g. Greece, Portugal, Spain), where passive involvement was clearly favored. The results suggest that particularly in Southern European countries many women prefer a passive role in treatment decision-making [Reference O’Donnell, Monz and Hunskaar34]. Cultural barriers–for example, patients’ and health professionals’ beliefs about their roles within the consultation–may be hard to overcome in some countries. It is therefore important that professionals are prepared to support patients in this process. For instance, patients are unlikely to become involved in self-management education programmes if they do not believe they have a key part to play in managing their health. Social inequalities may also inhibit changes in patient involvement. Those with lower levels of education and lower incomes may feel less confident about becoming involved in their care and in evaluating health information. They are also less likely to have access to computers and the Internet.

The digital divide is more apparent in some European countries than in others. A survey of citizen’s use of e-health services found that health-related use of the Internet was most frequent in northern European countries, such as Denmark (62%), Norway (59%) and Germany (49%) [Reference Andreassen, Bujnowska-Fedak, Chronaki, Dumitru, Pudule and Santana35, Reference Coulter, Parsons and Askham36]. Eastern European countries such as Poland and Latvia reported a 42 and 35% health-related use of the Internet, respectively, while southern Europe had the lowest proportion of Internet health users, with 30% in Portugal and 23% in Greece [Reference Andreassen, Bujnowska-Fedak, Chronaki, Dumitru, Pudule and Santana35]. A recent study found that Hispanics preferred a more passive role in mental health decision-making while non-Hispanics preferred a more active role. The authors discussed several reasons for these findings. Some of them could be applied to our findings. First, patients’ health worldview, including health belief models, treatment preferences, involvement of family, greater trust in their physician and attitude may vary and influence a patient’s preference for participation (influence by cultural attitudes and tradition) [Reference Mahone37Reference Caress, Luker, Woodcok and Beaver40]. Second, perceived lack of knowledge, lack of self-efficacy or a learned response influenced by cultural attitudes may contribute to this as well [Reference Patel and Bakken38Reference Caress, Luker, Woodcok and Beaver40]. Further potential reasons identified were the distinct organizational models in operation in the six European countries, which may lead to different ways of thinking about participation in medical decision-making, competence, vulnerability and risk to self, which raise particularly difficult issues in psychiatry [Reference Lora41Reference Doyal and Sheather43].

In some countries (e.g. Switzerland), patients can immediately visit a specialist clinician if they wish so, while in others (e.g. Italy, Denmark and England), patients must first secure a referral from a GP. The right to choose the timing and location of hospital treatment is well established in some countries (e.g. Germany), whereas long waits and limited choice of location are standard in others (e.g. UK). Policy makers in the UK and elsewhere are attempting to speed up access by making it easier for patients to travel to hospitals with spare capacity if they wish to [Reference Coulter and Jenkinson23]. Another reason could be that some patients’ wish for passivity may be genuine and may reflect their wish to be taken care of or to be free of responsibility for treatment failure [Reference Degner and Sloan44]. A further reason is the influence of the physician’s expectations of patient role. There is evidence of differences between doctors in eastern and western Germany concerning the nature of ‘right’ treatment and the ‘right’ patient role. In summary, physicians in the east have more paternalistic attitudes toward patients. This data is mirrored by a telephone survey showing that patients from Poland view their doctors as more paternalistic than patients in most western European countries. Thus, patients (in eastern Germany) who have experienced more paternalistic doctors already expect a more passive role [Reference Hamann, Mendel, Reiter, Cohen, Bühner and Schebitz14, Reference Hamann, Bieber Ch, Elwyn, Wartner, Hörlein and Kissling15]. In general, culture has so far been mostly neglected in the medical literature on treatment decision-making [Reference Charles, Gafni, Whelan and O’Brien24] and we can only comment on its possible influence on role preferences. Further research would be required to identify specific cultural and social factors in each country that might explain the observed cross-national differences.

5. Limitations

There are some limitations that have to be addressed. The primary limitation was that sample characteristics were heterogeneous across centers, which could decrease comparability and generalizability of our findings. A further limitation was that the CDMS was only measured twice instead of several times and that the CEDAR study lasted only one year. Having more measurement occasions would be useful to develop a better understanding of how patients’ wish for participation might change over time and to better understand the complexity of medical decision-making in mental health services. Furthermore, only six different countries were examined. Additional countries and different locations within the same country would enhance both international comparability and interpretation of the results. Furthermore, our study focused only on “culture” and “patient characteristics” as factors that influence patients’ preferences for involvement in decision-making. Other factors (e.g. the amount of knowledge patients have acquired about their condition) that influence patients’ preference for involvement in decision-making were not considered in detail in this study. Another limitation is the patients’ self-reported preferences and the failure to consider the impact of professional preferences on the results. In this paper only patient perspectives were considered. It is well established that attitudes do not immediately relate to behavior. Thus, for example, a patient who expresses high participation preferences in the questionnaire might at the same time behave entirely passively during a consultation because his doctor behaves very authoritatively. There is also evidence that patients–to varying extents–learn to present themselves and their illness according to cues from professionals. This learning process may also in part explain the changes over time in preferences observed. Finally, no data was collected about the cultural and social aspects of the professionals involved and the study sites are very distinct from one another. For further studies on this topic, the factors mentioned should be taken into account.

6. Conclusions

The data shows that center location has an impact on the patients’ desire for participation in decision-making. The influence of location has so far been a relatively neglected topic in the medical literature on treatment decision-making. Cultural influences can be a major factor affecting the dynamics of the physician–patient interaction, the type of decision-making process used, the potential for reaching a mutually agreed upon decision, and the satisfaction of both parties with both the process and the treatment decision. More research in these areas is certainly needed [Reference Gillespie, Florin and Gilliam22]. Involving patients in decision-making is one of many ways through which quality of health care could be improved [Reference Elwyn and Edwards45]. Preference for participation in medical decision-making varies widely. Involvement may not be acceptable or appropriate for everyone [Reference Puschner, Becker, Mayer, Jordan, Maj and Fiorillo17, Reference Giacco, Luciano, Del Vecchio, Sampogna, Slade and Clarke18]. Patients should be empowered so that they experience the benefits associated with involvement. Among other things, empowerment (i.e. within mental health services, including becoming an empowered member of society) is one of the recovery processes that have the most proximal relevance to clinical research and practice [Reference Leamy, Bird, Le Boutillier, Williams and Slade46]. The current conceptualizations of recovery are primarily based on Western European and North American models [Reference Slade, Leamy, Bacon, Janosik, Le Boutillier and Williams47]. Empowerment may therefore relate to a particular cultural value, which we found to be more present in Northern and Western Europe than in Central and Southern Europe. This highlights the culture-specific values inherent in evidence-based medicine, and the need to ensure that treatment approaches–especially in relation to interpersonal processes–are consistent with local cultural values.

The CEDAR Study Group

Ulm (Bernd Puschner (chief investigator), Thomas Becker, Katrin Arnold, Esra Ay, Jana Konrad, Sabine Loos, Petra Neumann, Nadja Zentner); London (Mike Slade, Elly Clarke, Harriet Jordan); Naples (Mario Maj, Andrea Fiorillo, Valeria Del Vecchio, Corrado De Rosa, Domenico Giacco, Mario Luciano, Gaia Sampogna, Lucia Del Gaudio, Pasquale Cozzolino, Heide Gret Del Vecchio, Antonio Salzano); Debrecen (Anikó Égerházi, Tibor Ivánka, Marietta Nagy, Roland Berencz, Teodóra Glaub, Ágnes Süveges, Attila Kovacs, Erzsebet Magyar); Aalborg (Povl Munk-Jørgensen, Malene Krogsgaard Bording, Helle Østermark Sørensen, Jens-Ivar Larsen); Zurich (Wolfram Kawohl, Wulf Rössler, Arlette Bär, Susanne Krömer, Jochen Mutschler, Caitriona Obermann).

Disclosure of interest

The authors declare that they have no competing interest.

Acknowledgements

The CEDAR study is funded by a grant from the Seventh Framework Programme (Research Area HEALTH-2007-3.1-4 Improving clinical decision-making) of the European Union (Grant no. 223290). CEDAR is a multi-center collaboration between the Section Process-Outcome Research, Department of Psychiatry II, Ulm University, Germany; the Section for Recovery, Institute of Psychiatry, King’s College London, U.K.; the Department of Psychiatry, University of Naples SUN, Italy; the Unit for Psychiatric Research, Aalborg Psychiatric Hospital, Aarhus University Hospital, Denmark; the Medical and Health Science Center, Department of Psychiatry, University of Debrecen, Hungary; and the Department of General and Social Psychiatry, University of Zurich, Switzerland.

Footnotes

1

Both authors contributed equally.

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