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. 2017 Aug 25;7:9501. doi: 10.1038/s41598-017-09849-z

Table 1.

Descriptive statistics for sample characteristics according to stroke status.

Characteristics N (%) Stroke cases (%) Non-cases (%) P value
Total 8018 (100.00) 177 (2.21) 7841 (97.79)
Age, y* 55.49 (9.93) 63.81 (9.55) 55.30 (9.85) <0.0001
 40~ 2749 (34.29) 18 (0.65) 2731 (99.35) <0.0001
 50~ 2488 (31.03) 33 (1.33) 2455 (98.67)
 60~ 2016 (25.14) 78 (3.87) 1938 (96.13)
 70~ 765 (9.54) 48 (6.27) 717 (93.73)
BMI (kg/m2)* 24.33 (3.20) 25.08 (3.37) 24.31 (3.19) 0.0015
 <25 4968 (61.96) 91 (1.83) 4877 (98.17)
 25–29 2677 (33.39) 75 (2.80) 2602 (97.20) 0.0051
 30+ 373 (4.65) 11 (2.95) 362 (97.05)
Gender
 Male 3081 (38.43) 98 (3.18) 2983 (96.82) <0.0001
 Female 4937 (61.57) 79 (1.60) 4858 (98.40)
Education level
 Primary school or below 2623 (32.71) 65 (2.43) 2558 (97.52) 0.7079
 Junior middle school 2096 (26.14) 44 (2.10) 2052 (97.90)
 Senior middle school 1745 (21.76) 37 (2.12) 1708 (97.88)
 College degree or above 1554 (19.38) 31 (1.99) 1523 (98.01)
Marital status
 Unmarried/widow/divorced 361 (4.50) 12 (3.32) 349 (96.68) 0.1396
 Married 7657 (95.50) 165 (2.15) 7492 (97.85)
Health insurance
 Yes 6196 (82.00) 129 (2.08) 6067 (97.92) 0.1457
 No 1360 (18.00) 37 (2.72) 1323 (97.28)
Family history of stroke
 Yes 704 (9.04) 52 (7.39) 652 (92.61) <0.0001
 No 7084 (90.96) 125 (1.76) 6959 (98.24)
History of diabetes
 Yes 746 (9.31) 34 (4.56) 712 (95.44) <0.0001
 No 7271 (90.69) 143 (1.97) 7128 (98.03)
History of hypertension
 Yes 2766 (35.03) 101 (3.65) 2665 (96.35) <0.0001
 No 5130 (64.97) 73 (1.42) 5057 (98.58)
History of hyperlipidemia
 Yes 2981 (37.18) 104 (3.49) 2977 (96.51) <0.0001
 No 5037 (62.82) 73 (1.45) 4964 (98.55)
History of heart disease
 Yes 410 (5.11) 29 (7.07) 381 (92.93) <0.0001
 No 7608 (94.89) 148 (1.95) 7460 (98.05)
History of AF
 Yes 156 (2.01) 12 (7.69) 144 (92.31) <0.0001
 No 7592 (97.99) 133 (1.75) 7459 (98.25)
Smoking status
 Never 7088 (88.40) 142 (2.00) 6946 (98.00) <0.0001
 Former 141 (1.76) 11 (7.80) 130 (92.20)
 Current 789 (9.84) 24 (3.04) 765 (96.96)
Alcohol drinking
 Never 6996 (87.25) 153 (2.19) 6843 (97.81) 0.7646
 Occasionally 722 (9.00) 17 (2.35) 705 (97.65)
 Frequently 300 (3.74) 7 (2.33) 293 (97.67)
Physical activity
 Yes 6456 (84.03) 102 (1.58) 6354 (98.42) <0.0001
 No 1227 (15.97) 51 (4.16) 1176 (95.84)

*Mean ± standard deviation.

Abbreviations: AF, atrial fibrillation; BMI, body mass index.