Nonlinear relationship between length of residence and depression in a community-based sample of Vietnamese Americans.

Background: Length of residence has been viewed as an indicator of acculturation among immigrants and refugees in their host society. This study aims to test an inverted U relationship between length of residence and depression in a community-based sample of Vietnamese Americans.

Methods: Data were collected from a community-based survey of adult Vietnamese Americans living in an East Coast metropolitan area consisting of 349 respondents aged 18 and older.