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Objectives. To identify trajectory patterns of maternal depressive symptoms and perceived stress from midpregnancy to 2 years postpartum and determine relationships with selected sociodemographic factors including income, education, immigration, and postpartum employment.

Methods. Pregnant women (n = 3307) recruited from the general population in 4 regions in Canada provided 6 waves of data from pregnancy to 2 years postpartum. The study was conducted from 2009 to 2015.

Results. We determined 5 trajectory groups distinguished by time and magnitude for both depressive symptoms and perceived stress. Immigrants living in Canada for more than 5 up to 10 years, but not more recent arrivals, were at higher risk for persistent stress and depression independent of income status. Being employed at 1 year postpartum was associated with a lower likelihood of postpartum depression and perceived …