Fig. 3

Dose-response association between dietary patterns (DP) of each method (principal component analysis and reduced rank regression) and prevalent T2DM (N = 1330). (A ~ C) PCA-derived DP 1 (panel A), PCA-derived DP 2 (panel B), PCA-derived DP 3 (panel C). (D ~ F) RRR-derived DP 1 (panel D), RRR-derived DP 2 (panel E), RRR-derived DP 3 (panel F). T2DM, type 2 diabetes mellitus. Odds ratios (OR) and 95% confidence interval derived from restricted cubic splines regression, with knots placed at the 1th, 50th and 99th percentiles of the distribution of DP scores. Models were adjusted for age, gender, education status, household income, physical exercise, drinking, smoking, family of diabetes, obesity, metabolic disorders