Table 1.
General characteristics of study participants by incident nonalcoholic fatty liver disease status (NAFLD)
| Characteristics | All participants | Incident NAFLD | P value | |
|---|---|---|---|---|
| No | Yes | |||
| N | 88,656 | 88,094 | 562 | |
| Age, years | 56.1 (7.8) | 56.1 (7.8) | 56.3 (7.6) | 0.596 |
| Male, n (%) | 38,353 (43.3) | 38,099 (43.2) | 254 (45.2) | 0.353 |
| White, n (%) | 85,587 (96.5) | 85,053 (96.5) | 534 (95) | 0.037 |
| Recruitment centers, n (%) | < 0.001 | |||
| England | 79,519 (89.7) | 78,975 (89.6) | 544 (96.8) | |
| Scotland | 5787 (6.5) | 5774 (6.6) | 13 (2.3) | |
| Wales | 3350 (3.8) | 3345 (3.8) | 5 (0.9) | |
| Townsend deprivation index | − 1.7 (2.8) | − 1.8 (2.8) | − 0.8 (3.2) | < 0.001 |
| Employed, n (%) | 83,710 (94.4) | 83,199 (94.4) | 511 (90.9) | < 0.001 |
| Income (< £31,000), n (%) | 30,726 (34.7) | 30,491 (34.6) | 235 (41.8) | < 0.001 |
| Education (college or university), n (%) | 38,353 (43.3) | 38,183 (43.3) | 170 (30.2) | < 0.001 |
| Smoking status, n (%) | < 0.001 | |||
| Current | 5903 (6.7) | 5850 (6.7) | 53 (9.5) | |
| Previous | 31,501 (35.6) | 31,263 (35.6) | 238 (42.6) | |
| Never | 51,012 (57.7) | 50,744 (57.8) | 268 (47.9) | |
| Alcohol drinking, n (%) | < 0.001 | |||
| > 4 times/week | 20,077 (22.6) | 19,957 (22.7) | 120 (21.4) | |
| 3–4 times/week | 23,057 (26.0) | 22,957 (26.1) | 100 (17.8) | |
| 1–2 times/week | 22,345 (25.2) | 22,214 (25.2) | 131 (23.3) | |
| < 1 time/week | 18,211 (20.5) | 18,057 (20.5) | 154 (27.4) | |
| Never | 4898 (5.5) | 4842 (5.5) | 56 (10.0) | |
| Body mass index, kg/m2 | 26.7 (4.5) | 26.6 (4.5) | 31 (5.5) | < 0.001 |
| Season of accelerometer wear, n (%) | 0.195 | |||
| Spring | 20,875 (23.5) | 20,761 (23.6) | 114 (20.3) | |
| Summer | 24,037 (27.1) | 23,876 (27.1) | 161 (28.6) | |
| Autumn | 24,456 (27.6) | 24,305 (27.6) | 151 (26.9) | |
| Winter | 19,288 (21.8) | 19,152 (21.7) | 136 (24.2) | |
| Total time of accelerometer wear, days | 6.7 (0.6) | 6.7 (0.6) | 6.7 (0.6) | 0.513 |
| Moderate-to-vigorous physical activity, min/week | 290.5 (242.9) | 291.2 (243) | 179.3 (186.1) | < 0.001 |
| Moderate-to-vigorous physical activity patterns, n (%) | < 0.001 | |||
| Inactive | 40,059 (45.2) | 39,673 (45) | 386 (68.7) | |
| Active weekend warrior | 28,094 (31.7) | 27,996 (31.8) | 98 (17.4) | |
| Active regular | 20,503 (23.1) | 20,425 (23.2) | 78 (13.9) |
Data are expressed as mean (SD) or n (%), accordingly