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Table 2 The BMI, PBF and VFA of the participants according to sleep duration (n=9509)

From: Gender differences in the association between sleep duration and body mass index, percentage of body fat and visceral fat area among chinese adults: a cross-sectional study

Variables Sleep Duration P
< 7 h 7-9 h ≥ 9 h
All (n=9509) 1243 7174 1092  
BMI(kg/m²) 24.38 ± 3.52 24.08 ± 3.45 24.00 ± 3.45 0.011
PBF(%) 29.76 ± 6.89 29.65 ± 6.67 30.06 ± 6.67 0.161
VFA(cm²) 95.54 ± 35.46 92.42 ± 34.15 92.33 ± 35.07 0.011
Women (n=5714) 723 4308 683  
BMI(kg/m²) 23.44 ± 3.47 23.09 ± 3.21 23.11 ± 3.24 0.030
PBF(%) 32.43 ± 6.43 32.09 ± 6.00 32.42 ± 5.99 0.197
VFA(cm²) 93.90 ± 37.70 89.86 ± 34.62 90.86 ± 35.85 0.016
Men (n=3795) 520 2866 409  
BMI(kg/m²) 25.68 ± 3.15 25.57 ± 3.25 25.47 ± 3.28 0.611
PBF(%) 26.06 ± 5.68 25.98 ± 5.89 26.11 ± 5.83 0.881
VFA(cm²) 97.82 ± 31.97 96.26 ± 33.08 94.78 ± 33.61 0.373