The characteristics of participants across quartiles of DII
The participants’ characteristics across the quartiles of DII have been shown in Table 1. The differences in physical activity, BMI categories, education, BAI, conicity index, and PSQI categories were not significant between DII quartiles (p ≥ 0.05). Those in DII quartile 1 had significantly more age, weight, BMI, WC, HC, and AVI, and good sleep quality compared to those in quartile 4 (p < 0.05).