Baseline characteristics of participants according to sleep duration group.

Abbreviations: HDL, high-density lipoprotein; MVPA, moderate-to-vigorous physical activity. Values are mean ± SD or n (%). Statistical significance was assessed by analysis of variance with continuous variables and by a chi-squared test with categorical variables. A Tukey post-hoc test was used to contrast mean differences. *Significantly different from the 7–8 h sleep group. †Significantly different from the ≥9 h sleep group.