Table 3 Stratified associations between TyG-BMI and NAFLD by age, sex, habit of exercise, BMI, smoking status and drinking status
Subgroup | No. of participants | unadjusted OR (95% CI) | adjusted OR (95% CI) | P-interaction |
|---|---|---|---|---|
Age (years) | Â | Â | Â | 0.0095 |
 18–30 | 645 | 6.12 (4.04, 9.27) | 3.68 (2.35, 5.76) |  |
 31–45 | 8210 | 6.98 (6.33, 7.70) | 4.31 (3.82, 4.87) |  |
 46–60 | 4909 | 5.14 (4.60, 5.74) | 3.30 (2.90, 3.76) |  |
  > 60 | 487 | 5.35 (3.59, 7.98) | 3.86 (2.53, 5.89) |  |
Sex | Â | Â | Â | 0.1101 |
 Male | 7411 | 5.50 (5.04, 6.00) | 3.68 (3.28, 4.12) |  |
 Female | 6840 | 5.96 (5.25, 6.76) | 4.20 (3.64, 4.83) |  |
Habit of exercise | Â | Â | Â | 0.0667 |
 Yes | 2470 | 6.88 (5.71, 8.30) | 4.58 (3.72, 5.64) |  |
 No | 11,781 | 6.04 (5.60, 6.52) | 3.76 (3.41, 4.16) |  |
BMI (kg/m2) | Â | Â | Â | 0.0002 |
  < 24 | 10,881 | 10.02 (8.65, 11.59) | 5.82 (4.75, 7.14) |  |
  ≥ 24, < 28 | 2726 | 4.58 (3.86, 5.44) | 2.81 (2.21, 3.56) |  |
  ≥ 28 | 644 | 3.97 (2.79, 5.66) | 2.89 (1.97, 4.25) |  |
Smoking status | Â | Â | Â | 0.5652 |
 Non | 8746 | 6.59 (5.98, 7.27) | 4.01 (3.56, 4.51) |  |
 Former | 2559 | 5.78 (4.95, 6.75) | 3.74 (3.13, 4.47) |  |
 Current | 2946 | 5.46 (4.75, 6.29) | 3.66 (3.12, 4.30) |  |
Drinking status | Â | Â | Â | 0.5258 |
 Non or small | 11,805 | 6.43 (5.95, 6.96) | 3.95 (3.57, 4.37) |  |
 Light | 1758 | 5.45 (4.47, 6.64) | 3.47 (2.78, 4.33) |  |
 Moderate | 688 | 5.88 (4.21, 8.21) | 4.05 (2.83, 5.80) |  |