Following this puts new work involving it at the top of your briefing, with a note saying why it is there. Links are taken from the source record, never inferred.
This is a registry record for a prospective observational study with no results reported; recruitment is complete but outcome data have not yet been published or posted.
This is a trial registration with no results posted; the study is not yet recruiting. It describes a planned intervention with a reasonable design but carries no evidence of efficacy or safety.
Well-designed population-based twin study with large sample and validated methods quantifying heritability of postpartum depression; rigorous design and clear effect size, but a genetic parameter estimate rather than a clinical trial outcome.
Large cross-sectional study with adequate sample size, validated instruments, multivariable analysis with prespecified models, good discrimination (AUC 0.86–0.91), and clear prevalence estimates and effect sizes across pregnancy and postpartum windows.
This is a completed trial registration with no results posted; the study design and planned outcomes are described but no efficacy data are available for evaluation.