Predictive model-based interventions to reduce outpatient no-shows: a rapid systematic review

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Abstract

Objective: Outpatient no-shows have important implications for costs and the quality of care. Predictive models of no-shows could be used to target intervention delivery to reduce no-shows. We reviewed the effectiveness of predictive model-based interventions on outpatient no-shows, intervention costs, acceptability, and equity.
Materials and Methods: Rapid systematic review of randomised controlled trials (RCTs) and non-RCTs. We searched MEDLINE, Cochrane CENTRAL, EMBASE, IEEE Xplore, and clinical trial registries on 30 March 2022 (updated on 8 July 2022). Two reviewers extracted outcome data and assessed the risk of bias using ROB 2, ROBINS-I, and confidence in the evidence using GRADE. We calculated risk ratios [RR] for the relationship between the intervention and no-show rates (primary outcome), compared with usual appointment scheduling. Meta-analysis was not possible due to heterogeneity.
Results: We included 7 RCTs and 1 non-RCT, in dermatology (n=2), outpatient primary care (n=2), endoscopy, oncology, mental health, pneumology, and an MRI clinic. There was high certainty evidence that predictive model-based text-message reminders reduced no-shows (1 RCT, median RR 0.91, interquartile range [IQR] 0.90, 0.92). There was moderate certainty evidence that predictive model-based phone-call reminders (3 RCTs, median RR 0.61, IQR 0.49, 0.68) and patient navigators reduced no-shows (1 RCT, RR 0.55, 95% confidence interval 0.46, 0.67). The effect of predictive model-based overbooking was uncertain. Limited information was reported on cost-effectiveness, acceptability, and equity.
Discussion and Conclusion: Predictive modelling plus text-message reminders, phone-call reminders, and patient navigator calls are probably effective at reducing no-shows. Further research is needed on the comparative effectiveness of predictive model-based interventions addressed to patients at high risk of no-shows versus non-targeted interventions addressed to all patients.
Original languageEnglish
JournalJournal of the American Medical Informatics Association
Publication statusAccepted/In press - 25 Nov 2022

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