Strengthening Research Quality Through Rigorous Search Strategy Development and Appraisal

Abstract

I write to highlight the critical importance of well-designed and transparently reported search strategies in health sciences research manuscripts submitted to the Health Sciences Investigations (HSI) Journal. As research output from Sub-Saharan Africa continues to grow, meticulous reporting of search methods is essential to ensure trustworthy evidence synthesis and to inform policy, clinical decision-making, and health system strengthening. Systematic and scoping reviews depend on comprehensive literature retrieval; however, suboptimal search practices remain common.
Recent evaluations indicate that only a small proportion of reviews demonstrate comprehensive search methods. For example, Layton [1] found that only 5% of prosthodontic systematic reviews met the recommended search strategy criteria. Common shortcomings include reliance on a single bibliographic database, superficial keyword usage, omission of controlled vocabulary, and inadequate documentation of search syntax. These weaknesses reduce search sensitivity, introduce selection bias, and limit reproducibility [2]. For example, systematic and scoping reviews conducted in Ghana and across Sub-Saharan Africa often demonstrate significant methodological limitations.
Common practices include searching only one or two major bibliographic databases and neglecting grey literature,despite established guidance advocating for multi-database and supplementary search approaches [3,4].