Type 1 Diabetes Mellitus in Patient Safety, Preventive & Ethics — Case | Epidemiology & Biostatistics | SMLE Q#18068
SMLE Question #18068
Patient Safety, Preventive & Ethics
Epidemiology & Biostatistics
Objective: OBJ-EP-OR-01
Last updated: February 2026
A researcher uses a case-control study to assess whether cesarean section (exposure) is associated with type 1 diabetes mellitus in offspring (outcome). Among cases (children with type 1 diabetes), 80 were delivered by cesarean section and 120 by vaginal delivery. Among controls (children without type 1 diabetes), 160 were delivered by cesarean section and 40 by vaginal delivery. What is the odds ratio for the association between cesarean section and type 1 diabetes mellitus?
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