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Table 2 Analyses of parameters associated with systolic and diastolic BP in patients with acute IS

From: Initial blood pressure is associated with stroke severity and is predictive of admission cost and one-year outcome in different stroke subtypes: a SRICHS registry study

 

Systolic BP (mmHg)

Diastolic BP (mmHg)

 

≤ 110

111 ~ 210

≥ 211

p

≤ 70

71 ~ 110

≥ 111

p

 

n = 40

n = 1119

n = 14

 

n = 154

n = 973

n = 46

 

Age, year

71.5 (56.8,76.5)

69 (59,78)

63.5 (58,77)

0.74

73 (63,80)

69 (58,77)

60.5 (53.3,70.8)

< 0.001*

Gender (F/M)

15/25

429/690

9/5

0.14

67/87

368/605

18/28

0.4

Initial NIHSS score

6 (3.3,10)

4 (2,8)

7.5 (3.8,15)

0.03*

4 (2,8)

5 (2,8)

5 (2,11)

0.24

Admission cost, USD

1784

(1043.9, 4905.1)

1199.4

(844.5, 1975.7)

2315.0

(1556.7, 5395.3)

< 0.001*

1264.5

(893.1, 2556.4)

1201.1

(841.6, 1953.2)

1499.7

(1048.2, 2912.4)

0.01*

Length of stay, day

23.5 ± 23.58

14.43 ± 15.06

22.86 ± 21.73

< 0.001

15.53 ± 19.04

14.71 ± 15.1

15.24 ± 13.76

0.820

One-year mRS score

1.5 (1,5.3)

1 (1,4)

5 (1,6)

0.03*

1 (1,4)

1 (1,4)

2 (1,4)

0.41

Hypertension, %

40.0

63.4

78.6

0.01*

55.2

63.8

67.4

0.1

Diabetes mellitus, %

22.5

30.3

50.0

0.16

24.7

31.0

32.6

0.26

Heart rate, bpm

82 (71.5,89.5)

74 (65,84)

77.5 (73.5, 97.3)

0.002*

72 (62,82)

74 (65,84)

85.5 (75.8,98.2)

< 0.001*

Previous stroke, %

41.7

37.5

38.5

0.88

35.7

38.0

35.0

0.81

Heart disease, %

37.5

32.7

21.4

0.54

44.8

30.7

34.8

0.02*

Hemoglobin, mg/dl

13.9 (11.7, 14.7)

13.8 (12.5, 15)

12.6 (10.6, 14.5)

0.19

13.2 (11.8,14.5)

13.8 (12.6,15.1)

14.1 (13.1,15.8)

< 0.001*

BUN/Cr ≥ 15, n (%)

18 (51.4)

401 (44.1)

2 (16.7)

0.11

66 (51.6)

343 (43.4)

12 (31.6)

0.07

Infection, n (%)

13 (32.5)

197 (17.6)

4 (28.6)

0.03*

32 (20.8)

171 (17.6)

11 (23.9)

0.38

  1. Median (Q1, Q3) is reported for continuous variables and number (%) for categorical variables. BP blood pressure, IS ischemic stroke, F female, M male, USD US dollar, One US dollars = 30 New Taiwan dollars, Previous stroke = history of previous stroke, Heart disease = history of heart disease, bpm beats per minute, NIHSS National Institutes of Health Stroke Scale, mRS modified Rankin scale, BUN/Cr blood urea nitrogen to creatinine ratio. * p value < 0.05