Prevalence and risk factors for postpartum depression in Sri Lanka: A population-based study

Previous studies in Sri Lanka have shown a high prevalence of postpartum depression (PPD). Postpartum depression screening using the Edinburgh Postnatal Depression Scale (EPDS) has been validated and included in routine postnatal care in 2012.

This study aimed to estimate the prevalence of PPD at 10 days and 4 weeks postpartum in 2017 in two medical officer of health (MOH) areas in Sri Lanka, and to assess the association between risk factors and postpartum depression.

An EPDS total score higher than 9 was used to estimate the prevalence of postpartum depression. PPD outcomes were assessed by mothers' responses to the EPDS. Potential risk factors were extracted from routine paper-based medical records. The associations were examined using simple and multivariable linear regression and multivariate logistic regression models.

A total of 1349 mothers in the two areas, 523 from Dankotuwa and 826 from Bope Poddala, were included. The prevalence of PPD was 15.5% and 7.8% among mothers assessed 10 days postpartum (in Dankotuwa) and 4 weeks postpartum (in Bope Poddala), respectively. EPDS total scores were positively related to delivery age of mothers. Presence of postpartum depression was significantly associated with delivery age over 35, having more than 4 living children and mothers' diseases. Mothers who attended prenatal sessions and whose partners were employed were less likely to report postpartum depression.

The prevalence of PPD in Sri Lanka was 15.5% at 10 days and 7.8% at 4 weeks postpartum. Future studies on the effect of time since delivery on postpartum depression screening outcomes are warranted.