Social determinants of health (SDOH) are non-medical factors that influence health outcomes, such as education, income, and social support, distinct from clinical or biological factors.

Option A (High body mass index): BMI is a clinical health outcome, not an SDOH.

Option B (Advanced age): Age is a demographic factor, not a primary SDOH, though it may interact with social factors.

Option C (Low literacy level): This is the correct answer. The NAHQ CPHQ study guide states, “Low literacy level is a social determinant of health, impacting health behaviors and access to care” (Domain 5). It affects understanding of medical instructions and health navigation.

Option D (Poorly managed chronic condition): This is a health outcome, not an SDOH.

CPHQ Objective Reference: Domain 5: Population Health and Care Transitions, Objective 5.4, “Incorporate SDOH into health strategies,” includes literacy as an SDOH. The NAHQ study guide notes, “Literacy significantly influences health literacy and outcomes” (Domain 5).

Rationale: Low literacy is a key SDOH, impacting health management, as per CPHQ’s population health principles.