PROTOCOL: Evidence and Gap Map of Studies of the Effects of Health Interventions to Reduce Out-of-Pocket Expenses

Key Points

• The aim is to identify gaps in existing research on health interventions aimed at reducing out-of-pocket expenses.
• Development of a Campbell Evidence and Gap Map to categorize existing studies.
• Focus on health interventions that address out-of-pocket expenses.
• Prioritization of areas needing further primary studies and systematic reviews.
• Identification of significant gaps in the literature regarding effective interventions.
• Mapping of existing studies, highlighting under-researched areas.
• Encouragement for future research efforts targeting out-of-pocket expenses.