Table 2 Relative risks of atrial fibrillation in hazard ratios according to baseline BMI groups and quintiles

Total (n = 7169)

287

(4.0)

BMI groups:

 BMI < 25 (n = 750)

17

(2.3)

1.00

Reference

 BMI 25–30 (n = 2579)

100

(3.9)

1.85

(1.10–3.09)

 BMI ≥ 30 (n = 3840)

170

(4.4)

2.85

(1.73–4.71)

BMI quintiles:

 Q1 -BMI ≤ 26.2 (n = 1278)

30

(2.3)

1.00

Reference

 Q2 -BMI 26.3-28.7 (n = 1366)

56

(4.1)

1.78

(1.14-2.77)

 Q3 -BMI 28.8-31.3 (n = 1486)

59

(4.0)

1.91

(1.23-2.97)

 Q4 -BMI 31.4-34.8 (n = 1489)

70

(4.7)

2.63

(1.71-4.04)

 Q5 -BMI ≥ 34.9 (n = 1550)

72

(4.6)

3.52

(2.29-5.43)