Thoughts of self-harm and associated risk factors among postpartum women in Canada

The prevalence of thoughts of self-harm during the postpartum period is not well documented in Canada. To estimate the prevalence of thoughts of self-harm among postpartum women in Canada, this study explored prevalence by socio-demographic characteristics and examined the associations between thoughts of self-harm and aspects of maternal mental health.

This study used data from the 2018/2019 Survey on Maternal Health which surveyed women living in the 10 provinces anywhere between 6-13 months postpartum. Participants were asked to report experiencing thoughts of self-harm, rate their mental health, and participate in the abbreviated Edinburgh Postpartum Depression Scale and Generalized Anxiety Disorder (GAD) scale. Adjusted logistic regression analyses were performed to examine associations.

Of the 6,558 respondents who agreed to share their data, 10.4% reported thoughts of self-harm since the birth of their child. Of these women, 37.0% reported low mental health, 54.2% had moderate levels of symptoms of postpartum depression (PPD) and 37.1% had symptoms of GAD. Women who experienced low mental health, moderate levels of symptoms of PPD and/or GAD were more likely to report thoughts of self-harm.

As thoughts of self-harm and aspects of mental health are self-reported, there is the potential for social desirability bias and underreporting. The cross-sectional survey design did not allow the reporting of thoughts of self-harm at different time points.

The high proportion of postpartum women in Canada reporting thoughts of self-harm and strong associations with aspects of maternal mental health highlight the need for effective supports during postpartum.