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Table 1 Baseline characteristics of the study population

From: The prevalence, incidence, management and risks of atrial fibrillation in an elderly Chinese population: a prospective study

Characteristic Men Women P
(n = 1718) (n = 2204)
Age, years 68.7 ± 7.1 69.5 ± 7.4 0.002
Body mass index, kg/m2 23.5 ± 3.5 23.8 ± 3.7 0.006
Systolic blood pressure, mm Hg 137.4 ± 19.9 138.2 ± 19.7 0.23
Diastolic blood pressure, mm Hg 80.3 ± 10.9 78.7 ± 10.5 <0.0001
Pulse rate, beats/min 74.6 ± 12.0 77.4 ± 11.7 <0.0001
Serum total cholesterol, mmol/l 5.3 ± 1.5 5.5 ± 1.5 <0.0001
Serum triglycerides, mmol/l 1.5 ± 0.8 1.7 ± 0.8 <0.0001
Serum creatinine, μmol/l 90.5 ± 31.3 86.0 ± 27.5 <0.0001
Fasting plasma glucose, mmol/l 5.2 ± 1.2 5.4 ± 1.3 <0.0001
Current smoking, n (%) 909 (52.9) 48 (2.2) <0.0001
Alcohol intake, n (%) 627 (36.5) 30 (1.4) <0.0001
Hypertension, n (%) 1031 (60.0) 1313 (59.6) 0.78
Use of antihypertensive drugs, n (%) 685 (39.9) 908 (41.2) 0.40
Diabetes mellitus, n (%) 116 (6.8) 183 (8.3) 0.07
Antidiabetic treatment, n (%) 61 (3.6) 91 (4.1) 0.35
History of cardiovascular disease    
 Coronary heart disease, n (%) 10 (0.6) 6 (0.3) 0.13
 Valvular heart disease, n (%) 1 (0.1) 0 (0) 0.26
Prevalence of atrial fibrillation, n (%) 34 (2.0) 36 (1.6) 0.42
CHADS2 score ≥1 point, n (%) 1191 (69.3) 1531 (69.5) 0.92
  1. Values are mean ± SD, or number (%) of subjects. For definitions of hypertension, diabetes mellitus, coronary heart disease, valvular heart disease, atrial fibrillation, and CHADS2 score, see Methods