Table 1.
General characteristics of study participants according to hepatic steatosis index score
| Total (n = 3476) | non-NAFLD (n = 2561) | NAFLD (n = 915) | p value | |
|---|---|---|---|---|
| Age, year | 52.96 ± 0.25 | 52.67 ± 0.29 | 53.78 ± 0.46 | 0.090 |
| Gender (%, men) | 1474 (42.41) | 1070 (41.78) | 404 (44.15) | 0.213 |
| BMI, kg/m2 | 24.61 ± 0.05 | 23.23 ± 0.04 | 28.47±0.10 | < 0.001 |
| Drinking status, n (%) | 0.018 | |||
| Never | 715 (20.57) | 502 (19.60) | 213 (23.28) | |
| Former | 439 (12.63) | 314 (12.26) | 125 (13.66) | |
| Current | 2322 (66.80) | 1745 (68.14) | 577 (63.06) | |
| Smoking status, n (%) | 0.727 | |||
| Never | 2278 (65.54) | 1667 (65.48) | 602 (65.68) | |
| Former | 679 (19.53) | 507 (19.80) | 172 (18.80) | |
| Current | 519 (14.93) | 377 (14.72) | 142 (15.52) | |
| Physical activity, n (%) | 0.005 | |||
| No | 1888 (54.32) | 1350 (52.71) | 538 (58.80) | |
| Moderate | 274 (7.88) | 205 (8.00) | 69 (7.54) | |
| Vigorous | 1314 (37.80) | 1006 (39.28) | 308 (33.66) | |
| Monthly household income, n (%) | 0.037 | |||
| < 2 million Korean Won | 1308 (37.63) | 944 (36.86) | 364 (39.78) | |
| 2-3 million Korean Won | 733 (21.09) | 523 (20.42) | 210 (22.95) | |
| 3-5 million Korean Won | 873 (25.12) | 662 (25.93) | 209 (22.84) | |
| > 5 million Korean Won | 562 (16.17) | 430 (16.79) | 132 (14.43) | |
| Education, n (%) | < 0.001 | |||
| < High school | 1172 (33.72) | 800 (31.24) | 372 (40.66) | |
| High school | 1220 (35.10) | 941 (36.74) | 279 (30.49) | |
| College or higher | 10.84 (31.19) | 820 (32.02) | 264 (28.85) | |
| Marital status, n (%) | 0.043 | |||
| Single | 397 (11.42) | 310 (12.10) | 87 (9.51) | |
| Married | 2681 (77.13) | 1971 (76.96) | 710 (77.60) | |
| Divorced or separated | 398 (11.45) | 280 (10.93) | 118 (12.90) | |
| AST | 25.97 ± 0.17 | 24.95 ± 0.18 | 28.84 ± 0.41 | < 0.001 |
| ALT | 24.86 ± 0.26 | 20.82 ± 0.18 | 36.17 ± 0.74 | < 0.001 |
| γ-GTP | 29.78 ± 0.57 | 26.00 ± 0.61 | 40.36 ± 1.29 | < 0.001 |
| Comorbidity, n (%) | ||||
| Hypertension | 798 (22.96) | 474 (18.51) | 324 (35.41) | < 0.001 |
| Diabetes mellitus | 309 (8.89) | 146 (5.70) | 163 (17.81) | < 0.001 |
| Hyperlipidemia | 1211 (34.84) | 734 (28.66) | 477 (52.13) | < 0.001 |
NAFLD nonalcoholic fatty liver disease, BMI body mass index, AST aspartate aminotransferase, ALT alanine aminotransferase, γ-GTP gamma-glutamyl transpeptidase