SPOUSE SIMILARITY FOR PSYCHOLOGICAL DISTRESS AND WELL-BEING - A POPULATION STUDY

While spouse similarity for psychiatric morbidity has been the object of numerous studies, most of these focused on clinical samples and, co nsequently, the interpretation of their results is limited by the exis tence of a selection bias. In this study, conducted on a sample of 845 general population couples, significant spouse similarity was observe d for psychological distress and well-being, characterized by a marked symmetry in the relation between spouses' scores. The sex differences observed in many earlier studies would appear essentially to be artef actual. Spouse similarity was also found to be significant in the subp opulation of couples married less than two years, which pointed to ass ortative mating for psychological distress and well-being. While many studies have found educational dissimilarity and age difference betwee n spouses to be associated with certain health variables, such as high blood pressure and coronary heart disease, these variables do not hav e a significant influence on individual levels of psychological distre ss and well-being. Spouse similarity for socio-demographic characteris tics does not play a significant role in explaining spouse similarity for mental health. Consequently, assortative mating for psychological distress and well-being would appear to be primarily due to personal p reference.