Table 2 Development of lean NAFLD according to the working hour category in men and women.
Categories of working hours | PY | Incident cases | Incidence rate (Cases per 1000 PY) | Age-adjusted HR (95% CI) | Multivariable-adjusted HR (95% CI)a | HR (95% CI)b in a model using time-dependent variables |
|---|---|---|---|---|---|---|
Total | ||||||
35–40 h | 40868.5 | 999 | 24.4 (22.9–26.0) | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) |
41–52 h | 94706.6 | 3239 | 34.2 (33.0–35.4) | 1.08 (1.01–1.16) | 1.17 (1.04–1.32) | 1.15 (1.06–1.24) |
≥ 53 h | 43549.9 | 1,63 | 38.2 (36.4–40.1) | 1.08 (0.99–1.17) | 1.12 (0.97–1.28) | 1.25 (1.14–1.37) |
p for trend | 0.046 | 0.099 | < 0.01 | |||
Men | ||||||
35–40 h | 12250.9 | 604 | 49.3 (45.5–53.4) | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) |
41–52 h | 50317.0 | 2630 | 52.3 (50.3–54.3) | 1.06 (0.97–1.16) | 1.22 (1.05–1.42) | 1.17 (1.07–1.28) |
≥ 53 h | 27526.2 | 1431 | 52.0 (49.4–54.7) | 1.04 (0.95–1.15) | 1.16 (0.99–1.38) | 1.25 (1.12–1.39) |
p for trend | 0.222 | 0.127 | < 0.01 | |||
Women | ||||||
35–40 h | 28617.5 | 395 | 13.8 (12.5–15.2) | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) |
41–52 h | 44389.5 | 609 | 13.7 (12.7–14.8) | 1.11 (0.98–1.27) | 1.11 (0.90–1.37) | 1.13 (0.97–1.32) |
≥ 53 h | 16023.6 | 232 | 14.5 (12.7–16.5) | 1.16 (0.98–1.36) | 1.04 (0.80–1.37) | 1.10 (0.88–1.39) |
p for trend | 0.133 | 0.561 | 0.036 | |||
