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Table 4 Stratified associations between WHtR and NAFLD by age, sex, habit of exercise, BMI, and drinking status

From: Waist-to-height ratio and non-alcoholic fatty liver disease in adults

Subgroup No. of participants No. of cases Adjusted OR (95%CI) Pinteraction
Age (years)     0.31
 18–29 401 22 (0.88%) 1.87 (0.99, 3.55)  
 30–39 4885 740 (29.52%) 1.90 (1.58, 2.28)  
 40–49 5278 979 (39.05%) 1.57 (1.34, 1.84)  
 50–59 3052 659 (26.29%) 1.69 (1.43, 1.99)  
  ≥ 60 635 107 (4.27%) 1.57 (1.18, 2.09)  
Sex     0.80
 Male 7411 2029 (80.93%) 1.64 (1.42, 1.90)  
 Female 6840 478 (19.07%) 1.67 (1.44, 1.95)  
Habit of exercise     0.61
 Yes 2470 377 (15.04%) 1.73 (1.41, 2.12)  
 No 11,781 2130 (84.96%) 1.64 (1.43, 1.88)  
BMI (kg/m2)      < 0.01
  ≤ 18.5 1545 3 (0.12%) 2.93 (0.35, 24.24)  
  ≥ 18.5, < 24 9336 847 (33.79%) 2.73 (2.37, 3.14)  
  ≥ 24 3370 1657 (66.09%) 1.94 (1.72, 2.18)  
Drinking status     0.73
 Non or small (< 40 g/w) 11,805 2088 (83.29%) 1.70 (1.48, 1.94)  
 Light (40–140 g/w) 1758 286 (11.41%) 1.57 (1.24, 1.98)  
 Moderate (140–209 g/w) 688 133 (5.31%) 1.79 (1.26, 2.56)  
  1. Adjusted for sex, age, BMI, ALT, AST, habit of exercise, GGT, HDL-C, TC, TG, HbA1C, smoking status
  2. FPG, SBP, height and drinking status