Application of a Weighted Absolute Percentage Error-Based Method for Calculating the Aggregate Accuracy of Reported Malaria Surveillance Data

• DOI: 10.4269/ajtmh.24-0804
• Publication Date: 2025-04-22T17:39:55Z
• Authors: Smita Das; Arantxa Roca-Feltrer; Michael Hainsworth
• Keywords: Prioritization; Aggregate data

Aggregate malaria data reporting accuracy indicates the overall quality of reported surveillance and is calculated using a routine audit (RDQA) toolkit during health facility audit. Three example scenarios are presented that highlight limitations aggregate methods three RDQA toolkits. A weighted absolute percentage error-based (WADRA) approach was found to resolve these by register values as weighting factor, enabling detection low-accuracy facilities otherwise considered high-accuracy current Accordingly, country programs should consider adopting WADRA method in their RDQAs maximize enhance decisions ranging from development implementation corrective action plans prioritization allocation resources for improvement efforts.