Digital support during pregnancy eased depression symptoms after birth

Depression during pregnancy and after birth can seriously harm a mother's psychological and physical well-being, with consequences that ripple out to the child and the wider family. In-person psychological support is not always accessible during pregnancy, whether for reasons of geography, cost, mobility or time, which makes online delivery an appealing alternative. The open question has been whether programmes delivered through a screen during pregnancy actually translate into fewer depressive symptoms once the baby arrives. This review set out to test exactly that, across the full range of online approaches trialled so far.

The authors searched PubMed and EBSCOhost up to July 29, 2024 for randomised controlled trials published in English involving pregnant women over 18 who took part in online interventions, with or without the support of a health worker. Eligible trials had to use validated measures of depression and well-being assessed both during pregnancy and postpartum, and studies measuring symptoms during the maternity blues window were excluded. Eighteen studies with 9,565 participants met the criteria, of which 38.8% involved clinical populations, and risk of bias was assessed with an established tool.

Overall, prenatal online interventions produced a significant reduction in postpartum depressive symptoms, with an effect of Cohen's d 0.37, a modest but real average benefit. Efficacy was greater in trials that compared the intervention against usual care and in programmes that incorporated relaxation and physical activity. The included studies varied considerably in their theoretical models, the gestational age at which support began, the degree of professional involvement and the activities involved, which makes it hard to say which components drove the benefit.

The result adds weight to the broader case for digital mental health support, extending it specifically to the perinatal period, where access barriers are often highest. It also exposes the field's weaknesses: there are no standardised protocols, the programmes tested differ widely, and long-term efficacy beyond the postpartum assessments remains uncertain. Whether the benefit holds equally for women at high and low risk of depression is another question the current evidence cannot settle, since a minority of trials involved clinical populations.

For someone who is pregnant and finds in-person support hard to access, this is a reason to think structured online programmes are more than a gimmick: across many trials they modestly reduced depressive symptoms after birth. The strongest showings came from programmes that included relaxation and physical activity, which hints at where the active ingredients may lie. The effect was modest and the programmes varied, so this sits alongside, not in place of, professional care when symptoms are significant.