Physical health and comorbid anxiety and depression across the first year postpartum in Ireland (MAMMI study): A longitudinal population-based study.

Introduction: Little is known of the associations between physical health issues and mental health issues such as anxiety, depression and comorbid anxiety and depression (CAD) occurring in the perinatal period.

Methods: A longitudinal cohort study with 3009 first-time mothers giving birth in Ireland collected physical and mental health data in pregnancy and at 3, 6, 9 and 12 months postpartum. Mental health was measured using the depression and anxiety subscales of the Depression, Anxiety and Stress Scale. Experience of eight common physical health issues (e.g. severe headaches/migraines, back pain) were assessed in pregnancy, with an additional six assessed at each postpartum data collection point.

Results: 2.4 % of women reported depression alone in pregnancy and 4 % reported depression across the first postpartum year. Anxiety alone was reported by 3.0 % of women in pregnancy, and 2 % in the first year postpartum. Prevalence of comorbid anxiety/depression (CAD) was 1.5 % in pregnancy and almost 2 % postpartum. A higher proportion of women reporting, compared to women not reporting, postpartum CAD were younger, not partnered, not in paid employment in pregnancy, have fewer years of education, and had a caesarean birth. Extreme tiredness/exhaustion and back pain were the most common physical health issues in pregnancy and postpartum. Constipation, haemorrhoids, bowel issues, breast issues, infection and pain in the perineum or caesarean wound, pelvic pain and urinary tract infections were highest at three months postpartum and gradually decreased thereafter. Women reporting depression alone or anxiety alone were equivalent in terms of physical health issues. However, women without mental health symptoms reported significantly fewer physical health issues than women reporting depressive or anxiety symptoms alone or CAD at every time point. Women with CAD reported a significantly higher number of health issues than women reporting depression alone or anxiety alone at 9 and 12 months postpartum.

Conclusion: Reports of mental health symptoms are associated with higher physical health burden demonstrating a need for integrated approaches in mental and physical health care pathways in perinatal services.