Table 1 Basic characteristics of the study participants in Guangzhou, southern China.

From: Epidemiological Characteristics of Atrial Fibrillation in Southern China: Results from the Guangzhou Heart Study

Characteristics Category Frequency Percentage
Subject Atrial fibrillation patients 175 1.46
Non-atrial fibrillation patients 11838 98.54
Region Rural 6478 53.92
Urban 5535 46.08
Age (years) 30–39 673 5.60
40–49 2329 19.39
50–59 3405 28.34
60–69 3506 29.19
70–79 1640 13.65
≥80 460 3.83
Gender Men 4207 35.02
Women 7806 64.98
Height (cm) <155 4507 37.52
155–159 2629 21.88
160–164 2166 18.03
≥165 2711 22.57
BMI (kg/m2) <18.5 862 7.18
18.5 to <22.5 3478 28.95
22.5 to <25 3446 28.69
25 to <30 3598 29.95
≥30 629 5.24
Marital status Married 9892 82.34
Divorced 208 1.73
Separated 34 0.28
Widowed 1284 10.69
Single 216 1.80
Missing 379 3.15
Educational level Illiteracy 1764 14.68
Primary school 2672 22.24
Junior middle school 2782 23.16
High and vocational school 2860 23.81
Junior College 993 8.27
Undergraduate and above 563 4.69
Missing 379 3.15
Occupation Leader of enterprise unit 517 4.30
Technical personnel 809 6.73
Handle affairs personnel 1328 11.05
Sales and service personnel 1733 14.43
Agricultural, forestry, fishery and water conservancy production staff 1603 13.34
Transportation and equipment operators related personnel 2474 20.59
Army man 16 0.13
Private owner 339 2.82
Others 2815 23.43
Missing 379 3.15