Adherence to the different patterns according to socioeconomic indicators assessed by Poisson regression (n = 2476).

Model 1: adjusted for age, sex, year and education; Model 2: adjusted for age, sex, year and income; Model 3: adjusted for age, sex, year, education and income; Model 4: same as Model 3 and including an interaction term for education and income. Low education: secondary (obligatory), post secondary vocational or lower. High education: polytechnic and university. High income defined as income ≥3,001 Rupees in 2004 and ≥8,001 Rupees in 2013. Significant associations are indicated in bold.