Depression among patients with diabetes mellitus in North India evaluated using patient health questionnaire-9

BACKGROUND: Depression is common among diabetes, and is associated with poor outcomes. However, the data on this important relationship are limited from India. OBJECTIVE: The aim was to estimate the prevalence of depression in patients with diabetes and to determine the association of depression with age, sex, and other related parameters. MATERIALS AND METHODS: The study was cross-sectional carried out in endocrinology clinic of tertiary care hospital in North India. Cases were patients with type 2 diabetes mellitus (T2DM) above 30 years of age. Depression was assessed using the patient health questionairre-9 (PHQ-9). The relationship with sociodemographic profile, duration of diabetes, hypertension and microvascular complications was also analyzed. RESULTS: Seventy-three subjects (57.5% females) with mean age 50.8 ± 9.2 years were evaluated. The prevalence of depression was 41%. Severe depression (PHQ score ≥15) was present in 3 (4%) subjects, moderate depression (PHQ score ≥10) in 7 (10%) subjects, and mild depression was present in 20 (27%) of subjects. Depression was significantly more prevalent in rural subjects (57%) when compared to urban ones (31%, P = 0.049). Depression increased with presence of microvascular complications, fasting plasma glucose, hypertension, but the differences were not statistically significant. CONCLUSIONS: Our study demonstrates higher prevalence of depression in patients with type 2 diabetes. Apart from being belonging to the rural area, no other factor was significantly associated with depression. Therefore, depression should be assessed in each and every patient, irrespective of other factors.