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There is compelling evidence for gradient effects of household income on school readiness. Potential mechanisms are described, yet the growth curve trajectory of maternal mental health in a child's early life has not been thoroughly investigated. We aimed to examine the relationships between household incomes, maternal mental health trajectories from antenatal to the postnatal period, and school readiness.
Prospective data from 505 mother–child dyads in a birth cohort in Singapore were used, including household income, repeated measures of maternal mental health from pregnancy to 2-years postpartum, and a range of child behavioural, socio-emotional and cognitive outcomes from 2 to 6 years of age. Antenatal mental health and its trajectory were tested as mediators in the latent growth curve models.
Household income was a robust predictor of antenatal maternal mental health and all child outcomes. Between children from the bottom and top household income quartiles, four dimensions of school readiness skills differed by a range of 0.52 (95% Cl: 0.23, 0.67) to 1.21 s.d. (95% CI: 1.02, 1.40). Thirty-eight percent of pregnant mothers in this cohort were found to have perinatal depressive and anxiety symptoms in the subclinical and clinical ranges. Poorer school readiness skills were found in children of these mothers when compared to those of mothers with little or no symptoms. After adjustment of unmeasured confounding on the indirect effect, antenatal maternal mental health provided a robust mediating path between household income and multiple school readiness outcomes (χ2 126.05, df 63, p < 0.001; RMSEA = 0.031, CFI = 0.980, SRMR = 0.034).
Pregnant mothers with mental health symptoms, particularly those from economically-challenged households, are potential targets for intervention to level the playing field of their children.
Previous studies have revealed associations of meteorological factors with tuberculosis (TB) cases. However, few studies have examined their lag effects on TB cases. This study was aimed to analyse nonlinear lag effects of meteorological factors on the number of TB notifications in Hong Kong. Using a 22-year consecutive surveillance data in Hong Kong, we examined the association of monthly average temperature and relative humidity with temporal dynamics of the monthly number of TB notifications using a distributed lag nonlinear models combined with a Poisson regression. The relative risks (RRs) of TB notifications were >1.15 as monthly average temperatures were between 16.3 and 17.3 °C at lagged 13–15 months, reaching the peak risk of 1.18 (95% confidence interval (CI) 1.02–1.35) when it was 16.8 °C at lagged 14 months. The RRs of TB notifications were >1.05 as relative humidities of 60.0–63.6% at lagged 9–11 months expanded to 68.0–71.0% at lagged 12–17 months, reaching the highest risk of 1.06 (95% CI 1.01–1.11) when it was 69.0% at lagged 13 months. The nonlinear and delayed effects of average temperature and relative humidity on TB epidemic were identified, which may provide a practical reference for improving the TB warning system.
An acute gastroenteritis (AGE) outbreak caused by a norovirus occurred at a hospital in Shanghai, China, was studied for molecular epidemiology, host susceptibility and serological roles. Rectal and environmental swabs, paired serum samples and saliva specimens were collected. Pathogens were detected by real-time polymerase chain reaction and DNA sequencing. Histo-blood group antigens (HBGA) phenotypes of saliva samples and their binding to norovirus protruding proteins were determined by enzyme-linked immunosorbent assay. The HBGA-binding interfaces and the surrounding region were analysed by the MegAlign program of DNAstar 7.1. Twenty-seven individuals in two care units were attacked with AGE at attack rates of 9.02 and 11.68%. Eighteen (78.2%) symptomatic and five (38.4%) asymptomatic individuals were GII.6/b norovirus positive. Saliva-based HBGA phenotyping showed that all symptomatic and asymptomatic cases belonged to A, B, AB or O secretors. Only four (16.7%) out of the 24 tested serum samples showed low blockade activity against HBGA-norovirus binding at the acute phase, whereas 11 (45.8%) samples at the convalescence stage showed seroconversion of such blockade. Specific blockade antibody in the population played an essential role in this norovirus epidemic. A wide HBGA-binding spectrum of GII.6 supports a need for continuous health attention and surveillance in different settings.
Gravitational waves from coalescing neutron stars encode information about nuclear matter at extreme densities, inaccessible by laboratory experiments. The late inspiral is influenced by the presence of tides, which depend on the neutron star equation of state. Neutron star mergers are expected to often produce rapidly rotating remnant neutron stars that emit gravitational waves. These will provide clues to the extremely hot post-merger environment. This signature of nuclear matter in gravitational waves contains most information in the 2–4 kHz frequency band, which is outside of the most sensitive band of current detectors. We present the design concept and science case for a Neutron Star Extreme Matter Observatory (NEMO): a gravitational-wave interferometer optimised to study nuclear physics with merging neutron stars. The concept uses high-circulating laser power, quantum squeezing, and a detector topology specifically designed to achieve the high-frequency sensitivity necessary to probe nuclear matter using gravitational waves. Above 1 kHz, the proposed strain sensitivity is comparable to full third-generation detectors at a fraction of the cost. Such sensitivity changes expected event rates for detection of post-merger remnants from approximately one per few decades with two A+ detectors to a few per year and potentially allow for the first gravitational-wave observations of supernovae, isolated neutron stars, and other exotica.
A study of low-speed streaks (LSSs) embedded in the near-wall region of a turbulent boundary layer is performed using selective visualization and analysis of time-resolved tomographic particle image velocimetry (tomo-PIV). First, a three-dimensional velocity field database is acquired using time-resolved tomo-PIV for an early turbulent boundary layer. Second, detailed time-line flow patterns are obtained from the low-order reconstructed database using ‘tomographic visualizations’ by Lagrangian tracking. These time-line patterns compare remarkably well with previously observed patterns using hydrogen bubble flow visualization, and allow local identification of LSSs within the database. Third, the flow behaviour in proximity to selected LSSs is examined at varying wall distances (
$10 < y^+ < 100$
) and assessed using time-line and material surface evolution, to reveal the flow structure and evolution of a streak, and the flow structure evolving from streak development. It is observed that three-dimensional wave behaviour of the detected LSSs appears to develop into associated near-wall vortex flow structures, in a process somewhat similar to transitional boundary layer behaviour. Fourth, the presence of Lagrangian coherent structures is assessed in proximity to the LSSs using a Lagrangian-averaged vorticity deviation process. It is observed that quasi-streamwise vortices, adjacent to the sides of the streak-associated three-dimensional wave, precipitate an interaction with the streak. Finally, a hypothesis based on the behaviour of soliton-like coherent structures is made which explains the process of LSS formation, bursting behaviour and the generation of hairpin vortices. Comparison with other models is also discussed.
This study aimed to investigate the benefit of Bonebridge devices in patients with single-sided deafness.
Five patients with single-sided deafness who were implanted with Bonebridge devices were recruited in a single-centre study. Participants’ speech perception and horizontal sound localisation abilities were assessed at 6 and 12 months post-operatively. Speech intelligibility in noisy environments was measured in three different testing conditions (speech and noise presented from the front, speech and noise presented from the front and contralateral (normal ear) side separately, and speech presented from the ipsilateral (implanted Bonebridge) side and noise from the contralateral side). Sound localisation was evaluated in Bonebridge-aided and Bonebridge-unaided conditions at different stimuli levels (65, 70 and 75 dB SPL).
All participants showed a better capacity for speech intelligibility in quiet environments with the Bonebridge device. The speech recognition threshold with the Bonebridge device was significantly decreased at both short- and long-term follow up in the speech presented from the ipsilateral (implanted Bonebridge) side and noise from the contralateral side condition (p < 0.05). Additionally, participants maintained similar levels of sound localisation between the Bonebridge-aided and unaided conditions (p > 0.05). However, the accuracy of localisation showed some improvement at 70 dB SPL and 75 dB SPL post-operatively.
The Bonebridge device provides the benefit of improved speech perception performance in patients with single-sided deafness. Sound localisation abilities were neither improved nor worsened with Bonebridge implantation at the follow-up assessments.
The risk factors of criminal behavior in patients with schizophrenia are not well explored. This study is to explore the risk factors for criminal behavior in patients with schizophrenia in rural China.
We used data from a 14-year prospective follow-up study (1994-2008) of criminal behavior among a cohort (n=510) of patients with schizophrenia in Xinjin County, Chengdu, China.
There were 489 patients (95.9%) who were followed up from 1994 to 2008. The rate of criminal behavior was 13.5% among these patients with schizophrenia during the follow-up period. Compared with female subjects (6 cases, 20.0%), male patients had significantly higher rate of violent criminal behavior (e.g., arson, sexual assault, physical assault, and murder) (24 cases, 80.0%) (p< 0.001). Bivariate analyses showed that the risk of criminal behavior was significantly associated with being unmarried, of younger age, previous violent behavior, homelessness, lower family economic status, no family caregivers, and higher scores on measures (PANSS) of positive, negative, and total symptoms of illness. In multiple logistic regression analyses being unmarried and previous violent behavior were identified as independent predictors of increased criminal behavior in persons with schizophrenia.
The risk factors for criminal behavior among patients with schizophrenia should be understood within a particular social context. Criminal behavior may be predicted by specific characteristics of patients with schizophrenia in rural community. The findings of risk factors for criminal behavior should be considered in planning community mental health care and interventions for high-risk patients and their families.
There seems to be geographical differences in decisions about breast conserving surgery (BCS) in breast cancer patients. This study was to evaluate patients’ attitude to BCS and to assess the factors affecting cancer practice in West China.
A structured questionnaire was distributed to 184 patients, eliciting information about the patients’ characteristics, occupation, education, family life, recognition of illness, knowledge about BCS, the main means of gaining surgery information, selecting surgery approaches, preferences to breast reservation.
In all, 163 patients completed the questionnaire. The results indicated that only 7.4% of patients received BCS and 23% of the remaining patients desired to have BCS and the affecting factors were significantly associated with their family life, recognition of illness and the main means of gaining surgery information (P < 0.05). No associations were between BCS selecting and the other variables studied. The most frequent reasons for selecting BCS were keeping the female shape and improving quality of life (71%), the second most were postoperative recovery, minimal influence of physical function (47%) and patients’ knowledge about BCS (42%). The most frequent reasons for not selecting BCS were uncertainty about BCS results and worry about recurrence (81%), the second most was the elderly age unnecessary for BCS (40%).
The findings indicate that breast cancer patients in West China do not take BCS as the first choice as the best treatment method. It is warranted that further study of more patients, attitude of patients’ partners and physicians to BCS.
Many family characteristics were reported to increase the risk of bipolar disorder (BPD). The development of BPD may be mediated through different pathways, involving diverse risk factor profiles. We evaluated the associations of family characteristics to build influential causal-pie models to estimate their contributions on the risk of developing BPD at the population level. We recruited 329 clinically diagnosed BPD patients and 202 healthy controls to collect information in parental psychopathology, parent-child relationship, and conflict within family. Other than logistic regression models, we applied causal-pie models to identify pathways involved with different family factors for BPD. The risk of BPD was significantly increased with parental depression, neurosis, anxiety, paternal substance use problems, and poor relationship with parents. Having a depressed mother further predicted early onset of BPD. Additionally, a greater risk for BPD was observed with higher numbers of paternal/maternal psychopathologies. Three significant risk profiles were identified for BPD, including paternal substance use problems (73.0%), maternal depression (17.6%), and through poor relationship with parents and conflict within the family (6.3%). Our findings demonstrate that different aspects of family characteristics elicit negative impacts on bipolar illness, which can be utilized to target specific factors to design and employ efficient intervention programs.
Depression is a common mental disorder that substantially impairs a client's functioning. the aim of this study is to examine the predictive factors of quality of life (QOL) for depression from longitudinal perspectives. 237 outpatients with depression were recruited in the study. They were from a psychiatric outpatient clinic in northern Taiwan. All subjects were tested on the baseline and followed up twice during 3-year period. the average age of subjects was 47.1 years. Most subjects were female, married and lived with their spouses.Seventy subjects participated in both follow ups (T2 and T3). there were no significant differences on the demographic characteristics at T1 between the respondents (N = 70) and non-respondents (N = 167) except for gender. the subjects were tested on the WHOQOL-BREF-Taiwan version, occupational self assessment, mastery, social support and Center of Epidemiology Study-Depression Scale (CESD). the data were analyzed by mixed effect model using SAS computer program.The severity of depression could predict overall QOL, overall health and 13 items of QOL. the type of antidepressants had significant impact on the subjects’ QOL in 10 items. the occupational competence and sense of mastery predicted 13 items (50%) and 14 items (53.8%), respectively.In order to advance the treatment outcomes, the professionals should pay more attention on the enhancement of the sense of competence and mastery. We suggested that treatments should target at improving adaptive skills, lifestyle, and occupational competence.
Previously, we reported the clinical efficacy of MPH-LA in adult ADHD evaluated in a 40-week, randomised, double-blind, placebo-controlled, multicentre core study [comprising of dose confirmation (9-week), real-life dose optimisation (5-week) and maintenance of effect phases (6- month)] (Atten Defic Hyperact Disord. 2013;(5):219–220). Here, we report the long-term efficacy from the 26-week extension phase of the same study.
During the extension phase, patients initiated treatment with MPH-LA 20 mg/day (oral, once daily capsules); uptitrated to optimal dose of 40, 60 or 80 mg/day in increments of 20 mg/week. Change in DSM-IV ADHD rating scale (RS) and SDS total scores at the end of study, were evaluated from the baseline of maintenance of effect phase of the core study and the baseline of extension phase.
At the end of the extension phase, the mean change in DSM-IV ADHD RS and SDS total scores from baseline of the maintenance of effect phase was −0.9 and −1.4 points respectively; and from baseline of extension phase was −7.2 and −4.8 respectively (Table). No new or unexpected safety concerns were observed during the extension phase.
MPH-LA continued to maintain clinical efficacy in adult ADHD patients over long-term.
Table DSM-IV ADHD RS, SDS total scores and change from baseline at the end of extension phase
Previous studies showed that persons with mental illness had poorer quality of life than persons with the other medical conditions. We developed a manualized treatment - Quality of Life Enhancement Program (QOLEP) based on literature review and clinical experiences. the contents of the program include 4 sessions of ‘occupational life scheduling’ and 4 sessions of ‘coping skills’ provided by an occupational therapist during a 4-week period (2 times/week) which each session lasts for one to two hours.
Twenty-one subjects were recruited from community mental health rehabilitation centers in northern Taiwan. They were randomly assigned to either treatment group (N=11) or control group (N=10). the subjects in the control group received general supportive therapy over the phone twice a week for 4 weeks. Both groups were evaluated at baseline and posttreatment. the mixed-effects linear model was applied to analyze the efficacy of the treatment.
The results showed that the subjects who participated in the QOLEP had significantly better physical QOL than that of control group (-9.66+4.24, p< .05). the suicidal ideation of the subjects for both groups decreased over time (2.64+3.16, p< .05). Most of the participants indicated that the activities were easily understood, helpful to them, and are willing to participate in the program again.
With the program developed based on concept of occupational engagement, we were able to demonstrate the efficacy of specific treatment on quality of life and used it as evidence to support future development in mental health area.
It is known that Sexual Dysfunction (SD) is higher in patient with depression than in the general population. Though antidepressant seems to worsen the situation, there are also indications that the gender may play a role on it.
Evaluate the gender effect of sexual function among unmedicated MDD, MDD receiving antidepressant, and healthy controls.
The sample was formed by male and female Taiwanese outpatients in three age and sex matched groups, with sixty nine participants per group: unmedicated MDD, MDD receiving antidepressant, and healthy controls. the diagnoses of depressions were performed according DSM-IV and Taiwanese Depression Questionnaire. SD was evaluated with the Chinese version of the Changes in Sexual Functioning Questionnaire. Finally, the data was analyzed using SPSS software v17. Mixed designed ANOVA was used.
There are significant differences between males and females CSFQ results (sex main effect F = 82.44, p < 0.001) and between groups (group main effect F = 3.48, p = 0.034). Additionally, the 2-way interaction between sex and group was also significant (F = 3.40, p = 0.036). Simple main effect analysis shows differences among male participants, between healthy and medicated males (F = 11.41, p = 0.002), but not in female (F = 1.58, p = 0.21). However the statistics weren’t different between females groups, the medicated expresses better results (similar to healthy group) than the unmedicated one.
SD is different between genders in each of the groups. Antidepressant seems to increase SD in man, while improves sexual satisfaction/function among depressive woman. We speculate that psychological improvement after treatment may have different impact between genders on sexual satisfaction.
Alcohol is legally accessible and widely used in Taiwan, but few studies have addressed alcohol-drinking problems in hospital settings.
To explore (1) the prevalence and risk factors for hazardous alcohol-drinking problems and (2) previous assessments and interventions for alcohol-drinking problems among a general Chinese patient population.
Self-report data were collected from 484 patients at five randomly selected hospitals.
The prevalence of hazardous alcohol-drinking problems was 19.2%. Logistic regression analysis revealed that risk factors for hazardous drinking problems were being male, smoking, and chewing betel quid. Only 29.1% of participants were assessed for drinking problems in the past year. Only 38.7% of participants with drinking problems had received a drinking intervention in the past year.
Alcohol problems in Taiwanese general hospitals are insufficiently assessed and targeted with interventions. Targeting high-risk groups and integrating psychiatric healthcare teams in general hospitals are important to prevent patients’ drinking problems.
The safety profile of MPH-LA in the paediatric population has been well studied. However, there are very limited studies reporting safety of MPH-LA in adults. We present the safety profile of MPH-LA in adults and from a pooled analysis in children.
Data from 3 multiple-dose, double-blind, placebo-controlled studies of 7-12 weeks duration in children with ADHD; MPH-LA (10-80mg/d) (n=314) & placebo (n=318) (aged 6-12 yrs in 2 studies &13-17 yrs in one study) were pooled for this analysis. In addition, data from 722 adult patients, 18-60 yrs of age with ADHD receiving MPH-LA 40-80 mg/d (n=542) or placebo (n=180) from double-blind dose confirmation phase of 9-week duration from one study was included in the analysis.
Common adverse events (AEs) reported by both adult and paediatric ADHD patients were decreased appetite, headache, nasopharyngitis, nausea, and insomnia (Table). Incidence of serious AEs (SAEs) was low with MPH-LA in both adults (0.7%) and children (0.6%) compared with placebo group (1.1% in adults and 0.3% in children).
Our findings show that safety profile of MPH-LA in adults is similar to that observed in the paediatric population.
Adverse events (>5%) by preferred term in multiple dose, placebo-controlled studies In adult and paedlatrlc ADHD patients
Most common AEs
MPH-LA N=542, n (%)
Placebo N=1B0, n (%)
MPH-LA N=314, n (%)
Placebo N=31S, n (%)
Total number of patients with anyAE
Analysis data set: Safety population of double-blind dose confirmation phase of 9-week duration conducted in adult ADHD patients and pooled safety population from 3 paediatric studies.
The existing literature on chronic pain points to the effects anxiety sensitivity, pain hypervigilance, and pain catastrophizing on pain-related fear; however, the nature of the relationships remains unclear. The three dispositional factors may affect one another in the prediction of pain adjustment outcomes. The addition of one disposition may increase the association between another disposition and outcomes, a consequence known as suppressor effects in statistical terms.
This study examined the possible statistical suppressor effects of anxiety sensitivity, pain hypervigilance and pain catastrophizing in predicting pain-related fear and adjustment outcomes (disability and depression).
Chinese patients with chronic musculoskeletal pain (n = 401) completed a battery of assessments on pain intensity, depression, anxiety sensitivity, pain vigilance, pain catastrophizing, and pain-related fear. Multiple regression analyses assessed the mediating/moderating role of pain hypervigilance. Structural equation modeling (SEM) was used to evaluate suppression effects.
Our results evidenced pain hypervigilance mediated the effects of anxiety sensitivity (Model 1: Sobel z = 4.86) and pain catastrophizing (Model 3: Sobel z = 5.08) on pain-related fear. Net suppression effect of pain catastrophizing on anxiety sensitivity was found in SEM where both anxiety sensitivity and pain catastrophizing were included in the same full model to predict disability (Model 9: CFI = 0.95) and depression (Model 10: CFI = 0.93) (all P < 0.001) (see Figs. 3 and 4, Figs. 1 and 2).
Our findings evidenced that pain hypervigilance mediated the relationship of two dispositional factors, pain catastrophic cognition and anxiety sensitivity, with pain-related fear. The net suppression effects of pain catastrophizing suggest that anxiety sensitivity enhanced the effect of pain catastrophic cognition on pain hypervigilance.
Disclosure of interest
The authors have not supplied their declaration of competing interest.
Persistent gaming, despite acknowledgment of its negative consequences, is a major criterion for individuals with Internet gaming disorder (IGD). This study evaluated the adaptive decision-making, risky decision, and decision-making style of individuals with IGD.
We recruited 87 individuals with IGD and 87 without IGD (matched controls). All participants underwent an interview based on the Diagnostic and Statistical Manual of Mental Disorders (5th Edition) diagnostic criteria for IGD and completed an adaptive decision-making task; the Preference for Intuition and Deliberation Scale, Chen Internet Addiction Scale, and Barratt Impulsivity Scale were also assessed on the basis of the information from the diagnostic interviews.
The results demonstrated that the participants in both groups tend to make more risky choices in advantage trials where their expected value (EV) was more favorable than those of the riskless choice. The tendency to make a risky choice in advantage trials was stronger among IGD group than that among controls. Participants of both groups made more risky choices in the loss domain, a risky option to loss more versus sure loss option, than they did in the gain domain, a risky option to gain more versus sure gain. Furthermore, the participants with IGD made more risky choices in the gain domain than did the controls. Participants with IGD showed higher and lower preferences for intuitive and deliberative decision-making styles, respectively, than controls and their preferences for intuition and deliberation were positively and negatively associated with IGD severity, respectively.
These results suggested that individuals with IGD have elevated EV sensitivity for decision-making. However, they demonstrated risky preferences in the gain domain and preferred an intuitive rather than deliberative decision-making style. This might explain why they continue Internet gaming despite negative consequences. Thus, therapists should focus more on decision-making styles and promote deliberative thinking processes to mitigate the long-term negative consequences of IGD.
While a body of research has evidenced the role of pain coping in chronic pain adjustment, the role of coping flexibility in chronic pain adjustment has received little research attention. Coping flexibility can be conceptualized with two dimensions, cognitive and behavioral. The cognitive dimension of coping flexibility (or coping appraisal flexibility) refers to one's appraisal of pain experience when changing coping strategies whereas the behavioral dimension of coping flexibility denotes the variety of coping responses individuals use in dealing with stressful demands.
The aim of this paper is to present preliminary findings on the role of coping flexibility in chronic pain adjustment by assessing 3 competing models of pain coping flexibility (see Figs. 1–3).
Patients with chronic pain (n = 300) completed a battery of questionnaire assessing pain disability, discriminative facility, need for closure, pain coping behavior, coping flexibility, and pain catastrophizing. The 3 hypothesized models were tested using structural equation modeling (SEM). In all models tested, need for closure and discriminative facility were fitted as the dispositional cognitive and motivational factors respectively underlying the coping mechanism, whereas pain catastrophizing and pain intensity were included as covariates.
Results of SEM showed that the hierarchical model obtained the best data-model fit (CFI = 0.96) whereas the other two models did not attain an accept fit (CFI ranging from 0.70–0.72).
Our results lend tentative support for the hierarchical model of pain coping flexibility that coping variability mediated the effects of coping appraisal flexibility on disability.
Disclosure of interest
The authors have not supplied their declaration of competing interest.
Research evidenced the association of pain coping strategies with short-term and long-term adjustments to chronic pain. Yet, previous studies mainly assessed the frequency of coping strategies when pain occurs whilst no data is available on one's flexibility/rigidity in using different pain coping strategies, i.e., pain coping variability, in dealing with different situations.
This study aimed to examine the multivariate association between pain coping variability and committed action in predicting concurrent pain-related disability. Specifically, we examined the independent effects of pain coping variability and committed action in predicting concurrent pain-related disability in a sample of Chinese patients with chronic pain.
Chronic pain patients (n = 287) completed a test battery assessing pain intensity/disability, pain coping strategies and variability, committed action, and pain catastrophizing. Multiple regression modeling compared the association of individual pain coping strategies and pain coping variability with disability (Models 1–2), and examined the independent effects of committed action and pain coping variability on disability (Model 3).
Of the 8 coping strategies assessed, only guarding (std β = 0.17) was emerged as significant independent predictor of disability (Model 1). Pain coping variability (std β = −0.10) was associated with disability after controlling for guarding and other covariates (Model 2) and was emerged as independent predictor of disability (Model 3: std β = −0.11) (all P < 0.05) (Tables 1 and 2).
Our data offers preliminary support for the multivariate association between pain coping variability and committed action in predicting concurrent pain-related disability, which supplements the existing pain coping data that are largely based on assessing frequency of coping.
Disclosure of interest
The authors have not supplied their declaration of competing interest.