Adjusted odds ratios (95% confidence intervals) for anemia according to sleep duration in men and women
Model 1 | P-value | Model 2 | P-value | Model 3 | P-value | |
---|---|---|---|---|---|---|
Men | ||||||
<5 | 3.657 (1.333–10.034) | 0.012 | 3.728 (1.310–10.603) | 0.014 | 3.885 (1.372–11.005) | 0.011 |
5–6 | 1.503 (0.580–3.898) | 0.401 | 1.757 (0.665–4.641) | 0.255 | 1.740 (0.659–4.592) | 0.262 |
6–7 | 0.964 (0.483–1.924) | 0.917 | 1.070 (0.534–2.144) | 0.849 | 1.058 (0.529–2.117) | 0.873 |
7–8 | 1 (Reference) | 1 (Reference) | 1 (Reference) | |||
8–9 | 1.272 (0.579–2.796) | 0.549 | 1.438 (0.646–3.202) | 0.372 | 1.442 (0.647–3.213) | 0.370 |
≥9 | 1.706 (0.601–4.840) | 0.314 | 2.028 (0.701–5.868) | 0.192 | 2.113 (0.722–6.182) | 0.171 |
Women | ||||||
<5 | 1.240 (0.692–2.223) | 0.470 | 1.557 (0.853–2.841) | 0.149 | 1.555 (0.855–2.829) | 0.147 |
5–6 | 1.086 (0.759–1.553) | 0.652 | 1.178 (0.816–1.700) | 0.381 | 1.178 (0.816–1.701) | 0.380 |
6–7 | 0.964 (0.483–1.924) | 0.809 | 1.069 (0.818–1.398) | 0.623 | 1.069 (0.817–1.397) | 0.626 |
7–8 | 1 (Reference) | 1 (Reference) | 1 (Reference) | |||
8–9 | 0.924 (0.706–1.208) | 0.562 | 0.938 (0.714–1.231) | 0.643 | 0.934 (0.711–1.228) | 0.625 |
≥9 | 0.619 (0.402–0.953) | 0.029 | 0.647 (0.415–1.008) | 0.054 | 0.645 (0.413–1.005) | 0.053 |
Model 1: unadjusted. Model 2: adjusted for age, body mass index, C-reactive protein, current smoking. Model 3: adjusted for age, body mass index, C-reactive protein, currently smoking, urban residence.
P-values are calculated using univariate logistic regression analysis.