Association of sleep disorders with non-lab-based CVD risk score among Indian population aged above 45 years: insight from Longitudinal Aging Study in India

Background: Both sleep disorders and cardiovascular events have been found to increase with age. The current study aimed to find an association between the two. Methods: The current analysis used data from Longitudinal Aging Study in India (LASI) (1st) conducted from April 2017 to December 2018 with sleep disorder as the output variable. Non-lab-based CVD risk score, defined by the WHO (2019) was explanatory variable. Possible confounders were also included in the secondary analysis. Results: Sleep disorder was seen among 11.69%, higher in females, elderly >60 years, rural population, unemployed and those with limited physical activity and self-reported poor health. Increased CVD risk score was associated with higher odds of having sleep disorder [5-9: 1.19 (1.12-1.28), 10-19: 1.31 (1.22-1.40), 20-29: 1.24 (1.09-1.41)]. On stratified analysis, similar results were seen in males but showed higher odds in the highest risk score category in females. Conclusions: Recognition and management of sleep disorders, especially those with cardiovascular comorbidities and risk factors is important.