Table 1. Characteristics of studies included in review .

First author, Year, References	Study type	Study setting	Study Zone	Age range included (in years)	Place, State	Sample size
Bhatt, 201833	Cross-sectional study	Urban	South	18-21	Mangalore, Karnataka	575
Nagarjuna, 201634	Cross-sectional study	Both	South	≥ 20	Nellore, Andhra Pradesh	600
Reddy, 201635	Cross-sectional study	Urban	South	≥ 20	Hyderabad, Telangana	1017
Salunke, 201936	Cross-sectional study	Rural	West	≥ 60	Pune, Maharashtra	135
Pradeep, 201632	Cross-sectional study	Both	South	≥ 16	Krishna, Andhra Pradesh	2934
Gautam, 201237	Cross-sectional study	Both	North	25-55	Sunder Nagar, Himachal Pradesh	300
Rambabu, 201838	Cross-sectional study	Both	South	18-65	Vijayawada, Andhra Pradesh	1155
Sreenivasan, 201539	Cross-sectional study	Both	South	≥ 18	Dharwad, Karnataka	378
Deolia, 202040	Cross-sectional study	Rural	West	≥ 18	Maharashtra	700
Kahar, 201641	Cross-sectional study	Rural	Central	≥ 18	Ramgarh, Madhya Pradesh	35
Gupta, 201531	Cross-sectional study	Rural	West	≥ 20	Western Rajasthan	5476
Kadaluru et al 201242	Cross-sectional study	Urban	South	18-55	Bangalore, Karnataka	246
Kakatkar, 201143	Cross-sectional study	Rural	West	25-45	Udaipur, Rajasthan	427
Basu, 202044	Cross-sectional study	Urban	Central	35-55	NCT Delhi	289
Barman, 201945	Cross-sectional study	Rural	East	18-37	Bhubaneswar, Orissa	300
Baskaradoss, 202046	Cross-sectional study	Both	South	18-35	Kerala	450
Bhaskar, 202047	Cross-sectional study	Both	South	20-59	Kottayam, Kerala	400
Nija, 202048	Cross-sectional study	Both	South	18-34	Kochi, Kerala	194
Khoisnam, 202249	Cross-sectional study	Urban	Central	20-59	Lucknow, Uttar Pradesh	500
Bhuvaneshwari, 202250	Cross-sectional study	Both	South	65-74	Devanagari, Karnataka	1440
Fotedar, 201251	Cross-sectional study	Both	North	25-45	Shimla, Himachal Pradesh	304