TABLE 1.
Baseline characteristics of subcohort participants and NAFLD cases1
| Subcohort | NAFLD cases | |
|---|---|---|
| Variable | (n = 180) | (n = 176) |
| Age (±SD), y | 50.6 ± 10.1 | 51.1 ± 9.1 |
| Female, % | 62.8 | 64.5 |
| Socioeconomic and lifestyle factors, % | ||
| Urban residency | 48.6 | 25.1 |
| ≥9 years of education | 21.6 | 28.0 |
| Household income ≥35 000 RMB/y | 19.5 | 21.4 |
| Ever regular smoking, % | ||
| Male | 65.1 | 69.1 |
| Female | 5.9 | 9.2 |
| Weekly alcohol drinking, % | ||
| Male | 31.6 | 45.2 |
| Female | 4.5 | 4.6 |
| Total physical activity (±SD), MET-h/d | 21.8 ± 14.6 | 21.2 ± 13.4 |
| Sedentary leisure time (±SD), h/d | 3.1 ± 1.5 | 3.0 ± 1.9 |
| Blood pressure and anthropometry | ||
| SBP (±SD), mmHg | 131.2 ± 19.9 | 133.0 ± 19.7 |
| RPG (±SD), mmol/L | 5.9 ± 2.7 | 6.4 ± 2.5 |
| BMI (±SD), kg/m2 | 23.9 ± 3.5 | 26.1 ± 3.5 |
| Waist circumference (±SD), cm | 79.6 ± 10.0 | 85.7 ± 9.9 |
| Hip circumference (±SD), cm | 90.5 ± 7.3 | 94.0 ± 7.2 |
| Waist-to-hip ratio (±SD) | 0.88 ± 0.07 | 0.91 ± 0.08 |
| Percentage body fat (±SD), % | 29.0 ± 8.2 | 33.4 ± 9.2 |
| Standing height (±SD), cm | 158.2 ± 7.9 | 158.7 ± 9.1 |
| Prior disease history, % | ||
| Diabetes | 5.8 | 6.5 |
| Coronary heart disease | 3.1 | 5.9 |
| Stroke or TIA | 2.9 | 0 |
| Hypertension | 10.9 | 13.7 |
| Family history of diabetes | 5.3 | 5.3 |
| Family history of cancer | 18.5 | 18.6 |
1
Results by BMI categories are standardized by age, sex, and region, whereas for age they were adjusted for sex and region. Values are means unless otherwise stated. MET, metabolic equivalent of task; NAFLD, nonalcoholic fatty liver disease; RMB, Renminbi; RPG, random plasma glucose; SBP, systolic blood pressure; TIA, transient ischemic attack.