Skip to main content Accessibility help
×
Home

Cohabitation patterns among patients with severe psychiatric disorders in the entire Danish population

  • A. F. Thomsen (a1), M. Olsbjerg (a2), P. K. Andersen (a2) and L. V. Kessing (a1)

Abstract

Background

Assortative mating has been demonstrated in mental disorders but the extent of cohabitation between patients with clinically diagnosed psychiatric disease has been poorly explored.

Method

We conducted a register-based study of all Danes between 18 and 70 years of age in a 13-year observational period, linking data on individuals' contacts with psychiatric services with data on individuals' cohabitation status. Two different Poisson regression analyses were performed: the first comparing the rates of commencing cohabitation with a psychiatric patient between individuals, depending on whether the individuals themselves had, or did not have, a psychiatric diagnosis; the second comparing the incidence rates of psychiatric diagnoses for individuals cohabitating with psychiatric patients with the similar rates for individuals living with unaffected cohabitants.

Results

In total, 159 929 (5.0%) out of 3 204 633 individuals were given a psychiatric diagnosis during the study period. Diagnosed individuals had an overall rate ratio (RR) of commencing cohabitation with a psychiatric patient of 1.95 [95% confidence interval (CI) 1.90–2.00] for women and 1.65 (95% CI 1.61–1.69) for men, when compared with unaffected individuals. The overall RR of receiving a psychiatric diagnosis while cohabitating with a psychiatric patient was 2.40 (95% CI 2.31–2.49) for women and 2.91 (95% CI 2.81–3.01) for men, when compared with those cohabitating with unaffected individuals. Individuals with schizophrenia and men with bipolar disorder had the highest RR of commencing cohabitation with a cohabitant with a similar diagnosis.

Conclusions

Cohabitation among individuals with severe psychiatric disorders is increased. This has implications for research and for the clinical management of patients.

Copyright

Corresponding author

*Address for correspondence: Professor L. V. Kessing, M.D., D.MSc. Psychiatric Center Copenhagen, Rigshospitalet, University Hospital of Copenhagen, Blegdamsvej 9, 2100 Copenhagen, Denmark. (Email: lars.vedel.kessing@regionh.dk)

References

Hide All
Bock, C, Bukh, JD, Vinberg, M, Gether, U, Kessing, LV (2009). Validity of the diagnosis of a single depressive episode in a case register. Clinical Practice and Epidemiology in Mental Health 5, 4.
Boomsma, DI, Saviouk, V, Hottenga, JJ, Distel, MA, De Moor, MH, Vink, JM, Geels, LM, van Beek, JH, Bartels, M, De Geus, EJ, Willemsen, G (2010). Genetic epidemiology of attention deficit hyperactivity disorder (ADHD index) in adults. PloS ONE 5, e10621.
Clayton, D, Hills, M (1993). Statistical Models in Epidemiology. Oxford University Press: Oxford.
Galbaud du Fort, G, Bland, RC, Newman, SC, Boothroyd, LJ (1998). Spouse similarity for lifetime psychiatric history in the general population. Psychological Medicine 28, 789802.
Galbaud du Fort, G, Boothroyd, LJ, Bland, RC, Newman, SC, Kakuma, R (2002). Spouse similarity for antisocial behavior in the general population. Psychological Medicine 32, 14071416.
Heun, R, Maier, W (1993). Morbid risks for major disorders and frequencies of personality disorders among spouses of psychiatric inpatients and controls. Comprehensive Psychiatry 34, 137143.
Joutsenniemi, K, Moustgaard, H, Koskinen, S, Ripatti, S, Martikainen, P (2011). Psychiatric comorbidity in couples: a longitudinal study of 202,959 married and cohabiting individuals. Social Psychiatry and Psychiatric Epidemiology 46, 623633.
Kessing, L (1998). Validity of diagnoses and other clinical register data in patients with affective disorder. European Psychiatry 13, 392398.
Lieb, R, Isensee, B, Hofler, M, Pfister, H, Wittchen, HU (2002). Parental major depression and the risk of depression and other mental disorders in offspring: a prospective-longitudinal community study. Archives of General Psychiatry 59, 365374.
Maes, HH, Neale, MC, Kendler, KS, Hewitt, JK, Silberg, JL, Foley, DL, Meyer, JM, Rutter, M, Simonoff, E, Pickles, A, Eaves, LJ (1998). Assortative mating for major psychiatric diagnoses in two population-based samples. Psychological Medicine 28, 13891401.
Mathews, CA, Reus, VI (2001). Assortative mating in the affective disorders: a systematic review and meta-analysis. Comprehensive Psychiatry 42, 257262.
McCrae, RR, Martin, TA, Hrebickova, M, Urbanek, T, Boomsma, DI, Willemsen, G, Costa, PT Jr. (2008). Personality trait similarity between spouses in four cultures. Journal of Personality 76, 11371164.
Merikangas, KR (1982). Assortative mating for psychiatric disorders and psychological traits. Archives of General Psychiatry 39, 11731180.
Merline, AC, Schulenberg, JE, O'Malley, PM, Bachman, JG, Johnston, LD (2008). Substance use in marital dyads: premarital assortment and change over time. Journal of Studies of Alcohol and Drugs 69, 352361.
Mors, O, Perto, GP, Mortensen, PB (2011). The Danish Psychiatric Central Research Register. Scandinavian Journal of Public Health 39, 5457.
Munk-Jorgensen, P, Mortensen, PB (1989). Schizophrenia: a 13-year follow-up. Diagnostic and psychopathological aspects. Acta Psychiatrica Scandinavica 79, 391399.
Munk-Jorgensen, P, Mortensen, PB (1997). The Danish Psychiatric Central Register. Danish Medical Bulletin 44, 8284.
Ottesen, MH (2000). Cohabitation, Marriage and Family Dissolution. An Analysis of Children's Family Relations During the Early Years of Life [in Danish]. The Danish Institute for Social Research: Copenhagen. pp. 2930.
Parnas, J (1988). Assortative mating in schizophrenia: results from the Copenhagen High-Risk Study. Psychiatry 51, 5864.
Spuhler, JN (1982). Assortative mating with respect to physical characteristics. Social Biology 29, 5366.
Thielen, K, Nygaard, E, Andersen, I, Rugulies, R, Heinesen, E, Bech, P, Bultmann, U, Diderichsen, F (2009). Misclassification and the use of register-based indicators for depression. Acta Psychiatrica Scandinavica 119, 312319.
Vaever, MS, Licht, DM, Moller, L, Perlt, D, Jorgensen, A, Handest, P, Parnas, J (2005). Thinking within the spectrum: schizophrenic thought disorder in six Danish pedigrees. Schizophrenia Research 72, 137149.
Waters, B, Marchenko, I, Abrams, N, Smiley, D, Kalin, D (1983). Assortative mating for major affective disorder. Journal of Affective Disorders 5, 917.
Weissman, MM, Wickramaratne, P, Nomura, Y, Warner, V, Verdeli, H, Pilowsky, DJ, Grillon, C, Bruder, G (2005). Families at high and low risk for depression: a 3-generation study. Archives of General Psychiatry 62, 2936.
WHO (1974). Glossary of Mental Disorders and Guide to their Classification for Use in Conjunction with the International Classification of Diseases, 8th Revision. World Health Organization: Geneva.
WHO (1993). International Statistical Classification of Diseases and Health Related Problems, Tenth Revision. World Health Organization: Geneva.
Zerbin-Rudin, E, Kendler, KS (1996). Ernst Rudin (1874–1952) and his genealogic-demographic department in Munich (1917–1986): an introduction to their family studies of schizophrenia. American Journal of Medical Genetics 67, 332337.

Keywords

Metrics

Altmetric attention score

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed