why are females at risk?
GROUND/OBJECTIVE: To compare the frequency of ICD-10 depressive episodes in a community sample of Sardinian immigrants in Argentina and a community sample of Sardinian residents in Sardinia, Italy. METHOD: A search of telephone directories provided all subscribers with Sardinian surnames in the Argentinean area involved. A 75.8% of all subjects thus identified took part in the study (n = 210). The characteristics of randomisation methods used to identify the community sample in Sardinia (n = 1040) have already been published elsewhere. All subjects were interviewed using the Composite International Diagnostic Interview Simplified. RESULTS: A higher frequency of depressive disorders was observed among the Sardinian immigrants in Argentina (26.7 vs. 13.5%, P < 0.0001). Females in particular showed a higher risk with respect to the Sardinian sample resident in Sardinia. DISCUSSION: On comparison of the present findings with the lifetime rate of depressive episodes in Sardinian immigrants