Effectiveness of nurse-led peri-discharge interventions for reducing 30-day hospital readmissions: Network meta-analysis.

Background: Existing systematic reviews have compared the effectiveness of nurse-led peri-discharge interventions comprising different components with usual care on reducing all-cause 30-day hospital readmissions. However, conflicting results were reported.

Objective: We conducted a network meta-analysis to evaluate the comparative effectiveness of different nurse-led peri-discharge interventions, compared with usual care, for reducing all-cause 30-day hospital readmissions.

Design: Network meta-analysis.

Methods: A total of five international databases were searched for systematic reviews of randomized controlled trials. Additional searches for most updated randomized controlled trials published between 2014 to 2019 were conducted. Data from included randomized controlled trials were extracted for random-effect pairwise meta-analyses. Pooled risk ratios with 95% confidence interval were used to quantify impact of nurse-led peri-discharge interventions on all-cause 30-day hospital readmissions. Network meta-analysis was used to evaluate the comparative effectiveness of different interventions.

Results: From two systematic reviews and additional randomized controlled trial searches, 12 eligible randomized controlled trials (n=150,840) assessing 15 different nurse-led peri-discharge interventions were included. For reducing all-cause 30-day hospital readmissions, pairwise meta-analysis showed that there was no significant difference between nurse-led peri-discharge interventions and usual care (pooled risk ratios = 0.86, 95% confidence interval: 0.71-1.04, moderate quality of evidence). Network meta-analysis indicated no significant difference across different interventions despite variation in complexity.

Conclusions: Our results indicated that nurse-led peri-discharge interventions were not significantly different from usual care for reducing all-cause 30-day hospital readmissions. Simpler nurse-led peri-discharge interventions are on par with more complex interventions in terms of effectiveness. Benefits of nurse-led peri-discharge interventions may vary across health system context. Therefore, careful consideration is required prior to implementation.

Registration Details: The protocol for this study has been registered in PROSPERO (Registration No. CRD42020186938). Tweetable abstract: This study suggested that nurse-led peri-discharge interventions do not differ from usual care for reducing all-cause 30-day hospital readmissions.