Risk factors for suicide attempt in pregnancy and the post-partum period in women with serious mental illnesses

Abstract

Suicide is a major public health concern worldwide, and mental disorders have been identified as a main risk factor. Suicide is also one of the leading causes of perinatal maternal mortality, but very few studies have focused on suicide attempts (SA) in the perinatal period. This work aims to assess risk factors associated with SA in pregnancy and in the post-partum period in women with mental health disorders. Women (n = 1439) with psychiatric disorders jointly admitted with their infant to 16 psychiatric Mother-Baby Units over 10 years (2001-2010) were assessed retrospectively for the occurrence of SA in pregnancy or the postpartum period. Multinomial logistic regression was used to explore the independent impact of maternal sociodemographic characteristics, history of childhood maltreatment and abuse, current mental illness and pregnancy data on SA in pregnancy and/or postpartum. One hundred and fifty-four women (11.68%) attempted suicide: 49 in pregnancy (3.71%) and 105 (7.97%) in the post-partum period. SA in pregnancy was related to alcohol use (OR = 2.37[1.02-5.53]; p = 0.04) and smoking during pregnancy (OR = 1.87[1.01-3.49]; p = 0.04) and also to a history of miscarriage (OR = 2.29[1.18-4.41]; p = 0.01). SA in the post-partum period was associated with major depressive episode (OR = 2.72[1.40-5.26]; p = 0.003) or recurrent depression (OR = 4.12[2.25-7.51], p < 0.001) and younger age (OR = 0.96[0.93-0.99], p = 0.03). SAs in the course of pregnancy and the postpartum period have different risk factors. Special attention to risk of suicide is needed during pregnancy for women with severe mental illness and a history of miscarriage, alcohol or cigarette use, young age and depression in the perinatal period.

Keywords: Depression; Perinatal period; Post-partum; Pregnancy; Suicide attempt.