ARE DIAGNOSTIC-CRITERIA, TIME OF EPISODE AND OCCUPATIONAL IMPAIRMENT IMPORTANT DETERMINANTS OF THE FEMALE MALE RATIO FOR MAJOR DEPRESSION

This study addresses whether the female preponderance in the 1-year pr evalence of major depressive disorder is associated with differences i n reporting symptoms or underreporting remote episodes, or the inclusi on of work impairment in the case definition. In a sample of 1870 prof essionals and managers, we find (1) a more restrictive cut-off point f or women does not eliminate the differential; (2) males and females eq ually underreport symptoms for remote episodes; and (3) adding impairm ent to the case definition marginally affects the F:M ratio. Thus, the large F:M prevalence ratio is not an artifact of ascertainment method , case definition, or differential recall.