Table 5 Hazard ratios (95% CI) for atrial fibrillation according to sleep duration stratified by snoring status in the Kailuan Study.

From: Long Sleep Duration Is an Independent Risk Factor for Incident Atrial Fibrillation in a Chinese Population: A Prospective Cohort 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)

 
  1. 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.
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