Skip to main content

Table 1 Demographics and risk factors of each region (median [IQR] or frequency (percentages))

From: Clinical characteristics, outcomes and regional variations of acquired valvular heart disease patients undergoing cardiac surgery in China

Variables

Northeast (n = 1560)

North (n = 14,217)

East (n = 9744)

Central (n = 4587)

South (n = 839)

Southwest (n = 3773)

Northwest (n = 3411)

Overall (n = 38,131)

Patient related

        

Age*

56.94 [49.75, 63.50]

55.68 [46.95, 63.70]

58.19 [49.41, 65.54]

54.27 [46.59, 62.39]

54.84 [46.10, 63.44]

52.02 [45.51, 60.33]

53.26 [46.28, 60.55]

55.31[47.29, 63.50]

Female

732 (46.9)

6559 (46.1)

4689 (48.1)

2118 (46.2)

368 (43.9)

2113 (56.0)

1436 (42.1)

18,015 (47.2)

BMI

23.51 [21.33, 25.80]

23.44 [21.11, 25.78]

22.89 [20.76, 25.00]

22.60 [20.70, 24.84]

22.37 [20.08, 24.57]

22.51 [20.50, 24.69]

22.86 [20.71, 25.00]

23.03 [20.82, 25.31]

BSA(m2)*

1.67 [1.55, 1.81]

1.68 [1.55, 1.81]

1.62 [1.50, 1.75]

1.64 [1.53, 1.76]

1.59 [1.48, 1.71]

1.56 [1.46, 1.68]

1.66 [1.55, 1.78]

1.64 [1.53, 1.78]

Diabetes mellitus

131 (8.4)

1046 (7.4)

732 (7.5)

271 (5.9)

73 (8.7)

162 (4.3)

152 (4.5)

2567 (6.7)

Hypertension

447 (28.7)

4388 (30.9)

2951 (30.3)

1090 (23.8)

180 (21.5)

439 (11.6)

655 (19.2)

10,150 (26.6)

eGFR*

91.98 [76.84, 102.39]

88.59 [73.38, 100.35]

90.66 [75.20, 101.65]

95.09 [79.86, 105.88]

87.87 [70.70, 102.00]

94.09 [79.63, 104.95]

86.79 [69.40, 102.36]

90.70[74.69, 102.22]

CKD

20 (1.3)

874 (6.1)

151 (1.5)

51 (1.1)

11 (1.3)

16 (0.4)

10 (0.3)

1133 (3.0)

Dialysis*

1 (0.1)

69 (0.5)

29 (0.3)

12 (0.3)

1 (0.1)

4 (0.1)

1 (0.0)

117 (0.3)

COPD*

14 (0.9)

106 (0.7)

72 (0.7)

83 (1.8)

9 (1.1)

31 (0.8)

49 (1.4)

364 (1.0)

Previous stroke*

31 (2.0)

557 (3.9)

496 (5.1)

292 (6.4)

51 (6.1)

93 (2.5)

106 (3.1)

1626 (4.3)

Extracardiac arteriopathy

21 (1.3)

270 (1.9)

390 (4.0)

145 (3.2)

18 (2.1)

6 (0.2)

47 (1.4)

897 (2.4)

Heart related

        

NYHA III or IV*

1261 (80.8)

5804 (40.8)

5042 (51.7)

2331 (50.8)

514 (61.3)

2846 (75.4)

2173 (63.7)

19,971 (52.4)

Arrhythmia

523 (33.5)

1719 (12.1)

2989 (30.7)

1287 (28.1)

298 (35.5)

1267 (33.6)

858 (25.2)

8941 (23.4)

Critical status*

16 (1.0)

53 (0.4)

80 (0.8)

21 (0.5)

14 (1.7)

29 (0.8)

22 (0.6)

235 (0.6)

Previous myocardial infarction

41 (2.6)

427 (3.0)

127 (1.3)

90 (2.0)

32 (3.8)

31 (0.8)

41 (1.2)

789 (2.1)

Previous cardiac surgery*

42 (2.7)

1031 (7.3)

422 (4.3)

229 (5.0)

58 (6.9)

90 (2.4)

109 (3.2)

1981 (5.2)

LVEF*

        

LVEF ≥ 50%

1407 (90.2)

13,429 (94.5)

8633 (88.6)

4094 (89.3)

742 (88.4)

3049 (80.8)

2869 (84.1)

34,223 (89.8)

35% ≤ LVEF < 50%

136 (8.7)

692 (4.9)

992 (10.2)

457 (10.0)

89 (10.6)

641 (17.0)

518 (15.2)

3525 (9.2)

LVEF < 35%

17 (1.1)

96 (0.7)

119 (1.2)

36 (0.8)

8 (1.0)

83 (2.2)

24 (0.7)

383 (1.0)

Left main stenosis*

27(1.7)

194(1.4)

299(3.1)

74(1.6)

36(4.3)

54(1.4)

43(1.3)

727(1.9)

AS

427 (27.4)

2606 (18.3)

2352 (24.1)

1106 (24.1)

221 (26.3)

1260 (33.4)

885 (25.9)

8857 (23.2)

Severe AI

230 (14.7)

742 (5.2)

1663 (17.1)

862 (18.8)

165 (19.7)

757 (20.1)

749 (22.0)

5168 (13.6)

MS

484 (31.0)

2764 (19.4)

3062 (31.4)

1480 (32.3)

331 (39.5)

2049 (54.3)

1099 (32.2)

11,269 (29.6)

Severe MI

572 (36.7)

1015 (7.1)

2477 (25.4)

1392 (30.3)

244 (29.1)

877 (23.2)

544 (15.9)

7121 (18.7)

Severe TI*

185 (11.9)

368 (2.6)

1003 (10.3)

512 (11.2)

107 (12.8)

447 (11.8)

205 (6.0)

2827 (7.4)

RHD

547 (35.1)

4504 (31.7)

4790 (49.2)

2218 (48.4)

345 (41.1)

2137 (56.6)

1526 (44.7)

16,067 (42.1)

Endocarditis

83 (5.3)

439 (3.1)

317 (3.3)

194 (4.2)

54 (6.4)

65 (1.7)

99 (2.9)

1251 (3.3)

Operation related

        

Non-elective surgery*

17 (1.1)

225 (1.6)

91 (0.9)

73 (1.6)

17 (2.0)

19 (0.5)

70 ( 2.1)

512 ( 1.3)

Aortic aneurysm operation*

10(0.6)

317(2.2)

359(3.7)

198(4.3)

50(5.9)

115(3.0)

343(10.0)

1392(3.7)

CABG*

155 (9.9)

2219 (15.6)

1097 (11.3)

674 (14.7)

141 (16.8)

181 (4.8)

209 ( 6.1)

4676 (12.3)

  1. IQR: interquartile range; BMI: body mass index; BSA: body surface area; eGFR: estimated glomerular filtration rate; CKD: chronic kidney disease; COPD: chronic obstructive pulmonary disease; NYHA: New York heart association; LVEF: left ventricular ejection fraction; AS: aortic valvular stenosis; AI: aortic valvular insufficiency; MS: mitral valvular stenosis; MI: mitral valvular insufficiency; TI: tricuspid insufficiency; RHD: rheumatic heart disease; CABG: coronary artery bypass grafting
  2. *Independent risk factors which were included in the HGLM for risk adjustment