Table 3.
Sleeping hours/day |
|||||
---|---|---|---|---|---|
<5 | 5 to <7 | 7 to<8 | ≥8 | p quadratic trend | |
Weight gain < 3k g | |||||
Person years | 1,222 | 10,328 | 20,623 | 13,477 | |
Incident cases | 5 | 56 | 95 | 52 | |
Crude HR (95% CI) | 0.89 (0.36–2.20) | 1.18 (0.50–1.65) | 1.00 Ref. | 0.84 (0.60–1.18) | 0.37 |
Age-sex-adjusted HR (95% CI) | 0.89 (0.36–2.19) | 1.15 (0.83–1.61) | 1.00 Ref. | 0.93 (0.66–1.30) | 0.70 |
Multivariable HRa (95% CI) | 0.83 (0.34–2.07) | 1.06 (0.76–1.48) | 1.00 Ref. | 0.91 (0.65–1.28) | 0.85 |
Multivariable HRb (95% CI) | 1.03 (0.40–2.61) | 0.99 (0.70–1.39) | 1.00 Ref. | 0.95 (0.67–1.38) | 0.99 |
| |||||
Weight gain ≥ 3kg | |||||
Person years | 813 | 5,218 | 10,741 | 6,991 | |
Incident cases | 14 | 67 | 92 | 65 | |
Crude HR (95% CI) | 2.06 (1.17–3.61) | 1.53 (1.14–2.09) | 1.00 Ref. | 1.08 (0.79–1.49) | 0.009 |
Age-sex-adjusted HR (95% CI) | 2.09 (1.19–3.67) | 1.53 (1.12–2.10) | 1.00 Ref. | 1.15 (0.84–1.59) | 0.01 |
Multivariable HRa (95% CI) | 2.05 (1.14–3.68) | 1.48 (1.08–2.04) | 1.00 Ref. | 1.22 (0.89–1.68) | 0.03 |
Multivariable HRb (95%CI) | 3.36 (1.82–6.21) | 1.43 (1.03–1.98) | 1.00 Ref. | 1.39 (1.00–1.93) | 0.001 |
Adjusted for age, sex, smoking status, physical activity, time spent sitting down, fast food, sugared soft drinks, snacking between meals, total energy intake, caffeine, alcohol, snoring, insomnia and siesta hours.
Additionally adjusted for baseline BMI.