Table 4. Factors associated with fatty liver in different populations by multivariate analysis.
| Odds ratio | 95% confidence interval | P | |
| All subjects | |||
| BMI (per kg/m2) | 1.209 | 1.191–1.227 | <0.001 |
| Age (per years) | 1.004 | 1.002–1.006 | 0.001 |
| WC (per cm) | 1.036 | 1.031–1.042 | <0.001 |
| SBP (per mmHg) | 1.002 | 1.000–1.003 | 0.040 |
| Fasting glucose (per mg/dL) | 1.010 | 1.009–1.011 | <0.001 |
| Cholesterol (per mg/dL) | 1.008 | 1.007–1.009 | <0.001 |
| HDL (per mg/dL) | 0.969 | 0.967–0.971 | <0.001 |
| ALT (per U/L) | 1.018 | 1.016–1.020 | <0.001 |
| Platelet (per/mm3) | 1.002 | 1.002–1.003 | <0.001 |
| HBsAg | 0.700 | 0.642–0.764 | <0.001 |
| For subjects with HBV infection | |||
| BMI (per kg/m2) | 1.161 | 1.110–1.214 | <0.001 |
| WC (per cm) | 1.055 | 1.038–1.072 | <0.001 |
| Fasting glucose (per mg/dL) | 1.013 | 1.009–1.017 | <0.001 |
| Cholesterol (per mg/dL) | 1.006 | 1.003–1.008 | <0.001 |
| HDL (per mg/dL) | 0.973 | 0.967–0.979 | <0.001 |
| ALT (per IU/L) | 1.003 | 1.001–1.005 | 0.003 |
| Platelet (per/mm3) | 1.003 | 1.002–1.004 | <0.001 |
| For subjects with BMI≤22.4 kg/m2 | |||
| Age (per years) | 1.005 | 1.001–1.009 | 0.02 |
| WC (per cm) | 1.071 | 1.062–1.080 | <0.001 |
| Fasting glucose (per mg/dL) | 1.010 | 1.008–1.012 | <0.001 |
| Cholesterol (per mg/dL) | 1.006 | 1.005–1.008 | <0.001 |
| HDL (per mg/dL) | 0.977 | 0.973–0.981 | <0.001 |
| ALT (per IU/L) | 1.007 | 1.005–1.009 | <0.001 |
| Platelet (per/mm3) | 1.002 | 1.001–1.003 | 0.001 |
| For subjects with BMI>22.4 kg/m2 | |||
| Male gender | 1.193 | 1.111–1.282 | <0.001 |
| WC (per cm) | 1.068 | 1.063–1.073 | <0.001 |
| SBP (per mmHg) | 1.003 | 1.002–1.005 | <0.001 |
| Fasting glucose (per mg/dL) | 1.010 | 1.009–1.012 | <0.001 |
| Cholesterol (per mg/dL) | 1.008 | 1.007–1.009 | <0.001 |
| HDL (per mg/dL) | 0.964 | 0.961–0.966 | <0.001 |
| ALT (per IU/L) | 1.025 | 1.023–1.027 | <0.001 |
| Platelet (per/mm3) | 1.003 | 1.002–1.003 | <0.001 |
| HBsAg positivity | 0.655 | 0.593–0.723 | <0.001 |
| For subjects with age≦50 years | |||
| BMI (per kg/m2) | 1.176 | 1.147–1.204 | <0.001 |
| Male gender | 0.817 | 0.736–0.907 | <0.001 |
| WC (per cm) | 1.048 | 1.038–1.057 | <0.001 |
| SBP (per mmHg) | 1.004 | 1.001–1.007 | 0.009 |
| Fasting glucose (per mg/dL) | 1.013 | 1.010–1.016 | <0.001 |
| Cholesterol (per mg/dL) | 1.008 | 1.007–1.009 | <0.001 |
| HDL (per mg/dL) | 0.972 | 0.968–0.976 | <0.001 |
| ALT (per IU/L) | 1.011 | 1.009–1.014 | <0.001 |
| GGT (per IU/L) | 1.003 | 1.001–1.004 | <0.001 |
| Platelet (per/mm3) | 1.003 | 1.002–1.003 | <0.001 |
| For subjects with age >50 years | |||
| BMI (per kg/m2) | 1.225 | 1.202–1.249 | <0.001 |
| Male gender | 1.115 | 1.032–1.205 | 0.006 |
| WC (per cm) | 1.030 | 1.023–1.036 | <0.001 |
| Fasting glucose (per mg/dL) | 1.009 | 1.008–1.011 | <0.001 |
| Cholesterol (per mg/dL) | 1.007 | 1.006–1.008 | <0.001 |
| HDL (per mg/dL) | 0.967 | 0.964–0.970 | <0.001 |
| ALT (per IU/L) | 1.022 | 1.020–1.025 | <0.001 |
| Platelet (per/mm3) | 1.003 | 1.002–1.003 | <0.001 |
| HBsAg positivity | 0.624 | 0.553–0.703 | <0.001 |
BMI, body mass index; WC, waist circumference; SBP, systolic blood pressure; HDL, high-density lipoprotein; ALT, alanine aminotransferase; GGT, gamma-glutamyltransferase; HBsAg, hepatitis B surface antigen.