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

From: Body weight and risk of atrial fibrillation in 7,169 patients with newly diagnosed type 2 diabetes; an observational study

  Atrial fibrillation
  Number of events (%) Hazard ratio (95% CI)
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)
  1. Adjusted for age, gender, systolic blood pressure and previous angina pectoris. CI = confidence interval, BMI = body mass index, Q = quintiles.