Confounding factors: Sociodemographic, dietary, and behavioural factors
SECONDARY
The confounding variables were sociodemographic factors including age, categorised into less than 40 years who were considered to be young adults, 40 to 59 years who were considered adults and 60 years or older who were considered older adults, gender, the highest level of education–categorized as no schooling, primary to high school (grade 1 to 9), secondary school certificate or any higher-level education. Socioeconomic status- classified as poor, and middle class or rich, assessed according to Cheng et al. [