Postpartum depression and anxiety symptoms follow three distinct trajectories in longitudinal study

A longitudinal study published in BMC Public Health examined joint patterns of postpartum depressive and anxiety symptoms among 474 women from three tertiary hospitals in Guangdong Province, China. Participants completed the Edinburgh Postnatal Depression Scale and Self-Rating Anxiety Scale at 42 days, three months, and six months postpartum. Researchers used parallel-process latent class growth modeling to identify trajectories and multinomial logistic regression to examine associated characteristics.

Three groups emerged: low-level depressive and anxiety symptoms (50.2%); high-level but decreasing symptoms in both domains (8.7%); and moderate-level symptoms with increasing anxiety and decreasing depression (41.1%). Compared with the low-level group, higher fatigue, poorer sleep quality, and monthly household income of RMB 5,000 or less were associated with greater odds of membership in either other group. Multiparity was associated with lower odds. Unemployment and formula feeding were associated only with the high-level, decreasing group.

The findings suggest that improving depressive symptoms may coexist with worsening anxiety, supporting joint consideration of both domains in postpartum care. However, these observational associations do not establish causation, and symptom-scale trajectories are not equivalent to clinical diagnoses. Recruitment from three tertiary hospitals in one Chinese province may limit generalizability. The supplied text does not report odds ratios or confidence intervals, limiting assessment of association strength and precision. The authors reported public grant support and no competing interests.