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Table 1 Patient characteristics

From: The oxygen reactivity index indicates disturbed local perfusion regulation after aneurysmal subarachnoid hemorrhage: an observational cohort study

Parameter

DCI + (n = 41)

DCI− (n = 35)

p value

Probe + (n = 20)

Probe− (n = 21)

Total

DCI + versus − 

Age (yr)

50.5 ± 12.0

59.0 ± 12.3

54.8 ± 12.8

60.3 ± 11.7

0.06

Female sex, n (%)

15 (75.0)

14 (66.7)

29 (70.7)

27 (77.1)

0.53

Hypertension, n (%)

7 (35.0)

9 (42.9)

16 (39.0)

14 (40.0)

0.93

Smoking, n (%)

4 (20.0)

6 (28.6)

10 (24.4)

5 (23.8)

0.27

HH 4–5, n (%)

11 (55.0)

9 (42.9)

20 (48.8)

15 (42.9)

0.61

mFS 3–4, n (%)

16 (80.0)

15 (71.4)

31 (75.6)

15 (42.9)

< 0.005

Anterior location, n (%)

15 (75.0)

16 (76.2)

31 (75.6)

26 (74.3)

0.89

Clipping, n (%)

7 (35.0)

11 (52.4)

18 (43.9)

15 (42.9)

0.93

Endovascular, n (%)

13 (65.0)

10 (47.6)

23 (56.1)

20 (57.1)

0.93

mRS 4–6, n (%)

14 (70.0)

11 (54.4)

25 (58.5)

15 (45.5)

0.18

Time to DCI (h)

176.0 ± 73.5

194.0 ± 77.1

185.7 ± 75.0

-

–

Monitoring time (h)

112.6 ± 72.0

131.8 ± 76.1

122.4 ± 73.9

117.3 ± 40.0

0.71

  1. Overview of baseline patient characteristics for patients with and without development of DCI. The DCI + group was further stratified into patients whose ICP/PbtO2-probe was in or out of an area of perfusion deficit at time of DCI diagnosis
  2. DCI Delayed cerebral ischemia, HH Hunt & Hess grade, mFS modified Fisher scale, mRS modified Rankin scale (two patients lost to follow-up in the DCI- group), and bold value indicates statistical significance