Fig. 2.

Association between diet cost quintiles and Healthy Eating Index-2015 (HEI-2015) in adults by area and region of residence – ENSANUT 2012. Predicted means of HEI-2015 score by quintiles of diet cost stratified by area and region of residence, estimated from linear regression models adjusted for sex, age, socio-economic status, education and ethnicity. In the figure of the overall population, the model includes the region; for the rest of the regions, we included the area of residence except for Mexico City, which only have urban population