A systematic review assesses quasi-experimental methodologies for clinical outcomes in Ghanaian hospitals, suggesting improvements for future impact evaluations.
Key Points
This systematic review evaluates the application of quasi-experimental methodologies for clinical outcomes in Ghanaian district hospitals.
Conducted a systematic search across electronic databases.
Included peer-reviewed studies utilizing quasi-experimental designs.
Assessed internal validity and analytical approaches using the ROBINS-I tool.
Performed independent study selection and data extraction.
Identified a growing number of studies employing quasi-experimental designs.
Found that interrupted time series was the most commonly used methodology.
Noted frequent omission of core model assumption tests, like parallel trends.
Less than 30% of studies reported robust standard errors for clustering.