The Effect of Nursing Interventions in Women With Gestational Hypertension: A Systematic Review and Meta-Analysis.

The included studies used different interventions, measurements and follow-up periods, so the pooled results may not apply to one specific nursing programme. The blood pressure and anxiety analyses had high heterogeneity, and Egger's test suggested publication bias. Some outcomes were pooled from only two or four studies, and some studies had small sample sizes. Two quasi-experimental studies were included, which may weaken causal inference. The review did not identify a single primary outcome, so positive secondary outcomes should not override the null preeclampsia result.

Do not read the positive blood pressure, anxiety and depression results as proof that one nursing component works. The interventions were bundled and heterogeneous, and preeclampsia development was not significantly affected.