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OBJECTIVE: Diagnostic delay is a pervasive patient safety problem that disproportionately affects historically underserved populations. We aim to systematically examine and synthesise published qualitative studies on patient experiences with diagnostic delay among historically underserved racial and ethnic populations. DATA SOURCES: PubMed. ELIGIBILITY CRITERIA: Primary qualitative studies detailing patient or caregiver-reported accounts of delay in the diagnosis of a disease among underserved racial and ethnic populations; conducted in the USA; published in English in a peer-reviewed journal (years 2012-2022); study cohort composed of >50% non-white racial and ethnic populations. DATA ANALYSIS: Primary outcomes were barriers to timely diagnosis of a disease. Screening and thematic abstraction were performed independently by two investigators, and data were synthesised using the 'Model of Pathways to Treatment' conceptual framework. RESULTS: Sixteen studies from multiple clinical domains were included. Barriers to timely diagnosis emerged at the socioeconomic and sociocultural level (low health literacy, distrust in healthcare systems, healthcare avoidance, cultural and linguistic barriers), provider level (cognitive biases, breakdown in patient-provider communication, lack of disease knowledge) and health systems level (inequity in organisational health literacy, administrative barriers, fragmented care environment and a lack of organisational cultural competence). None of the existing studies explored diagnostic disparities among Asian Americans/Pacific Islanders, and few examined chronic conditions known to disproportionately affect historically underserved populations. DISCUSSION: Historically underserved racial and ethnic patients encountered many challenges throughout their diagnostic journey. Systemic strategies are needed to address and prevent diagnostic disparities.
Faugno et al. (Mon,) studied this question.