Abstract 4135835: Prevalence of Diabetes Mellitus in Calcutta Schoolteachers and its Relationship with Cardiovascular Risk as Assessed by the ASCVD Model

Introduction: Cardiovascular disease (CVD) is rising in prevalence in India with economic development and the adoption of a Western lifestyle. Hypothesis: The increase in incidence and prevalence of CVD is possibly due to a rise in the incidence of risk factors like diabetes mellitus (DM), hypertension, hyperlipidemia, lack of physical activity and obesity, among various other causes. Aims: 1. To estimate the prevalence of DM in the community of Calcutta schoolteachers 2. To examine the relationship between the prevalence of DM and CVD risk as assessed by the different traditional CVD risk factors (age, sex, hypertension, current smoking, DM, and hyperlipidemia). Methods: We recruited 4,150 schoolteachers from 400 schools in Calcutta, India between June, and August 2019 with approval of the Tufts IRB and the local Ethics Committee. Participants were asked questions about their different risk factors to ascertain their cardiovascular risk by the ASCVD risk calculator. Baseline values (total cholesterol 170 mg/dL, HDL-C 50 mg/dL, no DM) were used when a participant’s glycemic status or lipid profile was not available. Based on the risk score, participants were stratified as mild (<5%), moderate (5-10%), or high (>10%) risk for developing ASCVD. A total of 240 participants were randomly selected from a stratified sample of the participants for evaluation for diabetes using HbA1c. DM was diagnosed when the Hb A1 C was 6.5% or more. Results: The mean age of the participants was 44 years, and 41% were male. Out of a total of 4,150 participants, 85.7% (3,558) were in the low-risk for CVD category, 9.0% (374) were moderate-risk, and 5.3% (218) were high-risk. Among the 240 screened for DM, 17.1% (41) were found to have the condition, and 41.3% (99) were pre-diabetic. There was no significant difference in prevalence of DM between men and women in the overall study population and in the mild risk group. However, more women in the medium risk group and more men in the high-risk group were found to be diabetic (p value <0.001 in both). Some participants were reclassified based on their new diagnosis of DM. Conclusions: The prevalence of DM was high among Calcutta schoolteachers, which contributes to being at increased risk for ASCVD. Most participants were unaware of their DM or cardiovascular risk, highlighting the need for increased testing and awareness. The estimates from this study may be used to understand the community burden of DM and cardiovascular risk.