Five dietary patterns were identified by factor analysis and were labeled as follows: (1) Diverse diet, (2) Western diet, (3)
Whole grains and beans, (4) White rice and kimchi (traditional fermented cabbage), and (5) Alcohol and coffee based on the food groups showing high loading by each dietary pattern (Table 1). Odds ratios (95% CIs) for IR across quintiles of dietary pattern scores are presented in Table 2. After adjusting for potential confounders, subjects in the highest quintile of the whole grains and beans pattern had a 20% reduced prevalence of IR than those in the lowest quintile and displayed a significant trend (OR for highest quintile = 0.80, 95% CI = 0.61– 1.03, P for trend = 0.013). No association was observed between
other dietary patterns and IR.