Gender differences in the prevalence of depression: a survey in primary care

Epidemiological surveys demonstrate that unipolar depression is more common in females than in males. Gender-specific cultural and social factors may contribute to the female preponderance. This study explores this possibility in a cross-cultural sample of general-practice patients systematically recruited in the WHO study “Psychological Problems in Primary Care” conducted in 14 countries with identical sampling and assessment strategies. Although absolute prevalence rates are broadly varying between centers proposing that the gender ratio is nearly constant with 1:2. The cultural context does not contribute substantially to the female preponderance. This study lends some support to previous observations that the magnitude of female preponderance is associated with the number of symptoms associated with depression requested for caseness and inversely related to the degree of social impairment. Matching social role variables (marital status, children, occupational status) between females and males reduces the female excess by about 50% across all centers. Therefore, we conclude that social factors are inducing part of the preponderance of females among depressed cases.