Table 1

Characteristics of participants

Men (n=1864)Women (n=2964)P value
Age (years)55.5±12.756.6±12.40.002
Body mass index (kg/m2)23.4±3.322.9±3.5<0.001
Sleep duration (min/day)388.0±63.0380.0±59.0<0.001
Physical activity41.5% (774)47.1% (1395)<0.001
Current smoker25.1% (467)5.6% (165)<0.001
NAFLD47.0% (876)37.1% (1099)<0.001
ALT (U/L)24.5±15.520.7±15.2<0.001
Global PSQI score4.9±2.65.2±2.6<0.001
  • ALT, alanine aminotransferase; NAFLD, non-alcoholic fatty liver disease; PSQI, Pittsburgh Sleep Quality Index.