Prevalence of risk factors for non-communicable diseases in a rural tribal population of Mokokchung, Nagaland, India

Background Non-communicable diseases (NCDs) are the leading cause of mortality in India. The northeastern part of India has a high burden of NCDs. However, data on the prevalence of risk factors for NCDs in the rural tribal population of Nagaland are limited. We estimated the prevalence and awareness level of risk factors for NCDs in the rural population of Mokokchung district, Nagaland. Methods In a cross-sectional survey, we selected 472 subjects aged 25–64 years, stratified by age and sex, in 20 villages, using a cluster sampling technique. The WHO STEPS tools were used to collect data on behavioural risk factors, and anthropometric, blood pressure and capillary glucose measurements. The proportion of subjects with each NCD risk factor was determined overall and in various age and sex subgroups. Results The 472 subjects had a median age of 44.5 years, 92 (19.5%) reported current smoking and 75 (15.9%) reported current alcohol use. Among 236 males, 90 (38.1 %) were current smokers and 65 (27.5%) were current alcohol users, whereas of the 236 females, only 2 (0.8%) and 10 (4.2%) were current smokers and current alcohol users, respectively. The use of smokeless tobacco was common among both males (139/236; 58.9%) and females (117/ 236; 49.6%). Inadequate intake of fruits and vegetables was reported by 189 (80.1%) males and 221 (93.6%) females. Insufficient physical activity was observed only among 16 (3.4%) participants. Prevalence of hypertension and a body mass index of 23.0–27.49 kg/m2 was 43.2% and 32.4%, respectively. Conclusions We observed a high prevalence of behavioural risk factors for NCDs and of hypertension in rural tribal people in Nagaland. The primary healthcare system needs to be strengthened in this area to improve detection and management of hypertension. Mass and print media campaigns and provision of cessation services may also be helpful.