Table 5.
Hazard ratios (95% CI) for atrial fibrillation according to sleep duration stratified by snoring status in the Kailuan Study.
| Snoring | Sleep duration (hours) | P for interaction | ||
|---|---|---|---|---|
| ≤6.0 | 7 | ≥8.0 | ||
| Case, incidence, per 1000 person-years | 22 (0.63) | 12 (0.50) | 29 (0.98) | |
| Model 1 | 1.12 (0.55–2.26) | reference | 2.11 (1.08–4.13) | 0.41 |
| Model 2 | 1.07 (0.52–2.17) | reference | 2.06 (1.04–4.06) | 0.36 |
| Model 3 | 1.03 (0.45–1.93) | reference | 2.05 (1.04–4.04) | 0.25 |
| NO Snoring | ||||
| Case, incidence, per 1000 person-years | 60 (0.51) | 39 (0.40) | 160 (0.49) | |
| Model 1 | 1.10 (0.73–1.64) | reference | 1.39 (0.98–1.97) | |
| Model 2 | 1.09 (0.73–1.64) | reference | 1.30 (0.90–1.89) | |
| Model 3 | 1.12 (0.74–1.68) | reference | 1.35 (0.93–1.97) | |
Model 1: Adjusted for age and sex. Model 2: Adjusted for age, sex, level of education, smoking, alcohol, physical activity, and body mass index. Model 3: Adjusted for variables in Model 2 plus hypertension, diabetes mellitus, dyslipidaemia, myocardial infarction, uric acid and high-sensitivity C-reactive protein.