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) | 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 | 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 | 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) | 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 | 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 | 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) |
Abbreviations: OR Odds ratios; other abbreviations as in Table 1
Adjusted for sex, age, ALT, AST, habits of exercise, GGT; HDL-C, TC, TG, FPG, HbA1c, smoking status, SBP and height