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Table 1 Sociodemographic and clinical characteristics of patients admitted for first stroke

From: Temporal trend of comorbidity and increasing impacts on mortality, length of stay, and hospital costs of first stroke in Tianjin, North of China

Variables

Total (n = 5988)

Comorbidity category

P value

None (n = 2878)

Moderate (n = 1972)

Severe (n = 545)

Very severe (n = 593)

Age (mean ± SD)

69.3 ± 12.4

68.3 ± 12.7

69.6 ± 12.1

73.5 ± 11.2

70.2 ± 12.3

< 0.001

Sex, N (%)

 Female

2493 (41.6)

1096 (38.1)

892 (45.2)

254 (46.6)

251 (42.3)

 

Age group, N (%)

< 0.001

 18–34 years

23 (0.4)

12 (0.4)

5 (0.3)

2 (0.4)

4 (0.7)

 

 35–44 years

121 (2.0)

74 (2.6)

31 (1.6)

7 (1.3)

9 (1.5)

 

 45–54 years

627 (10.5)

339 (11.8)

213 (10.8)

23 (4.2)

52 (8.3)

 

 55–64 years

1412 (23.6)

757 (26.3)

444 (22.5)

83 (15.2)

128 (21.6)

 

 65–74 years

1431 (23.9)

645 (22.4)

499 (25.3)

142 (26.1)

145 (24.5)

 

 75–84 years

1757 (29.3)

776 (27.0)

589 (29.9)

202 (37.1)

190 (32.0)

 

 ≥ 85 years

617 (10.3)

275 (9.6)

191 (9.7)

86 (15.8)

65 (11.0)

 

Comorbidities, N (%)

 Hypertension

4758 (79.5)

2264 (78.7)

1578 (80.0)

429 (78.7)

487 (82.1)

0.235

 Atrial fibrillation or flutter

858 (14.3)

353 (12.3)

285 (14.5)

118 (21.7)

102 (17.2)

< 0.001

 Myocardial infarction

365 (6.1)

0 (0)

132 (6.7)

153 (28.1)

80 (13.5)

< 0.001

 Congestive heart failure

524 (8.8)

0 (0)

185 (9.4)

157 (28.8)

182 (30.7)

< 0.001

 Peripheral vascular disease

256 (4.3)

0 (0)

76 (3.9)

68 (12.5)

112 (18.9)

< 0.001

 Dementia

86 (1.4)

0 (0)

52 (2.6)

27 (5.0)

7 (1.2)

< 0.001

 Chronic pulmonary disease

48 (0.8)

0 (0)

20 (1.0)

17 (3.1)

11 (1.9)

< 0.001

 Connective tissue disease

93 (1.6)

0 (0)

52 (2.6)

23 (4.2)

18 (3.0)

< 0.001

 Ulcer disease

106 (1.8)

0 (0)

46 (2.3)

33 (6.1)

27 (4.6)

< 0.001

 Mild liver disease

59 (1.0)

0 (0)

22 (1.1)

20 (3.7)

17 (2.9)

< 0.001

 Diabetes without end-organ damage

2084 (34.8)

0 (0)

1387 (70.3)

268 (49.2)

429 (72.3)

< 0.001

 Diabetes with end-organ damage

223 (3.7)

0 (0)

0 (0)

0 (0)

223 (37.6)

< 0.001

 Moderate to severe renal disease

228 (3.8)

0 (0)

0 (0)

71 (13.0)

157 (26.5)

< 0.001

 Nonmetastatic solid tumor

201 (3.4)

0 (0)

0 (0)

88 (16.1)

113 (19.1)

< 0.001

 Leukemia

7 (0.1)

0 (0)

0 (0)

2 (0.4)

5 (0.8)

< 0.001

 Lymphoma

3 (0.1)

0 (0)

0 (0)

1 (0.2)

2 (0.3)

0.003

 Moderate to severe liver disease

74 (1.2)

0 (0)

0 (0)

0 (0)

74 (12.5)

< 0.001

 Metastatic cancer

16 (0.3)

0 (0)

0 (0)

0 (0)

16 (2.7)

< 0.001

Stroke type, N (%)

< 0.001

 Ischemic stroke

5751 (96.0)

2749 (95.5)

1924 (97.6)

513 (94.1)

565 (95.3)

 

 Hemorrhagic stroke

237 (4.0)

129 (4.5)

48 (2.4)

32 (5.9)

28 (4.7)

 

Season, N (%)

0.263

 Spring

1481 (24.7)

707 (24.6)

518 (26.3)

133 (24.4)

123 (20.7)

 

 Summer

1519 (25.4)

756 (26.3)

475 (24.1)

136 (25.0)

152 (25.6)

 

 Fall

1484 (24.8)

716 (24.9)

480 (24.3)

136 (25.0)

152 (25.6)

 

 Winter

1504 (25.1)

699 (24.3)

499 (25.3)

140 (25.7)

166 (28.0)

 

Week, N (%)

0.464

 Weekend

1625 (27.1)

796 (27.7)

510 (25.9)

155 (28.4)

164 (27.1)

 

 Weekday

4363 (72.9)

2082 (72.3)

1462 (74.1)

390 (71.6)

429 (72.3)

 

Payer, N (%)

< 0.001

 Urban employee basic medical insurance

4540 (75.8)

2139 (74.3)

1538 (78.0)

403 (73.9)

460 (77.6)

 

 Urban residence basic medical insurance

874 (14.6)

422 (14.7)

256 (13.0)

100 (18.3)

96 (16.2)

 

 Self-pay

571 (9.6)

317 (11.0)

178 (9.0)

42 (7.7)

37 (6.2)

 

COST median (IQR)

15,151.7 (10,649.7–22,584.9)

14,160.4 (10,020.2–21,148.3)

15,243.5 (11,074.0–22,610.8)

17,936.7 (11,980.8–25,980.4)

19,339.3 (13,020.7–27,485.9)

< 0.001

In-hospital mortality, N (%)

249 (4.2)

65 (2.3)

73 (3.7)

51 (9.4)

60 (10.1)

< 0.001

Admission year, N (%)

< 0.001

 2010

397 (6.6)

217 (7.5)

144 (7.3)

23 (4.2)

13 (2.2)

 

 2011

517 (8.6)

261 (9.1)

206 (10.4)

34 (6.2)

16 (2.7)

 

 2012

676 (11.3)

356 (12.4)

238 (12.1)

47 (8.6)

35 (5.9)

 

 2013

635 (10.6)

336 (11.7)

211 (10.7)

53 (9.7)

37 (6.2)

 

 2014

470 (7.8)

217 (7.5)

170 (8.6)

48 (8.8)

35 (5.9)

 

 2015

512 (8.6)

241 (8.4)

156 (7.9)

45 (8.3)

70 (11.8)

 

 2016

557 (9.3)

257 (8.9)

157 (8.0)

50 (9.2)

93 (15.7)

 

 2017

522 (8.7)

244 (8.5)

152 (7.7)

46 (8.4)

80 (13.5)

 

 2018

584 (9.8)

266 (9.2)

189 (9.6)

68 (12.5)

61 (10.3)

 

 2019

617 (10.3)

283 (9.8)

192 (9.7)

70 (12.8)

72 (12.1)

 

 2020

499 (8.3)

200 (6.9)

157 (8.0)

61 (11.2)

81 (13.7)

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