Prevalence of Depression in Relation to Glucose Intolerance in Urban South Indians—The Chennai Urban Rural Epidemiology Study (CURES-76)

Abstract Background: This study investigated the association between depression and glucose intolerance in urban residents of southern India. Methods: Subjects were recruited from the Chennai Urban Rural Epidemiology Study, carried out on a representative sample of 26,001 subjects recruited from Chennai city in southern India. Subjects with known diabetes were excluded (n = 1,498). Of the remaining 24,503 subjects, fasting capillary blood glucose (FBG) estimation were available for 23,787 subjects (response rate, 97.1%) in whom depression was assessed using a validated instrument, the Patient Health Questionnaire-12. Subjects with FBG values ≥126 mg/dL were termed as subjects with newly diagnosed diabetes (NDD), those with values between 100 and 125 mg/dL as having impaired fasting glucose (IFG), and those with <100 mg/dL as having normal fasting glucose (NFG). Results: The overall prevalence of depression was 14.3% (3391 of 23,787 subjects), and an increasing prevalence of depression was seen with increa...