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Table 4 Odds ratios in multivariable models for the outcome mRS > 2 at 6 months

From: External ventricular drain use is associated with functional outcome in aneurysmal subarachnoid hemorrhage

Variable

Model including admission mF

Model including admission GCS

Model including admission HH

Model including admission WFNS

OR

95% CI

OR

95% CI

OR

95% CI

OR

95% CI

Model 1

        

 Age

1.03

0.97–1.08

1.01

0.94–1.07

1.02

0.96–1.08

1.00

0.94–1.07

 Sex

0.49

0.10–2.56

0.96

0.15–6.25

0.65

0.10–4.17

0.87

0.14–5.40

 Admission mF

1.29

0.56–2.93

NI

NI

NI

NI

NI

NI

 Admission GCS

NI

NI

0.73

0.56–0.95

NI

NI

NI

NI

 Admission HH

NI

NI

NI

NI

2.41

1.22–4.74

NI

NI

 Admission WFNS

NI

NI

NI

NI

NI

NI

2.39

1.24–4.60

 EVD

8.32

1.27–54.27

2.29

0.32–16.61

2.89

0.46–18.21

1.97

0.25–15.34

Model 2

        

 Age

1.04

0.98–1.10

1.02

0.94–1.09

1.03

0.97–1.11

1.01

0.94–1.08

 Sex

0.40

0.07–2.15

0.85

0.13–5.57

0.51

0.08–3.25

0.79

0.13–4.97

 Admission mF

1.34

0.57–3.14

NI

NI

NI

NI

NI

NI

 Admission GCS

NI

NI

0.66

0.49–0.90

NI

NI

NI

NI

 Admission HH

NI

NI

NI

NI

2.64

1.27–5.51

NI

NI

 Admission WFNS

NI

NI

NI

NI

NI

NI

3.00

1.39–6.47

 EVD

4.47

0.54–37.00

0.45

0.03–6.91

1.07

0.10–11.21

0.45

0.03–6.60

 ICU LOS

1.04

0.97–1.13

1.09

0.98–1.20

1.06

0.97–1.17

1.08

0.98–1.18

Model 3

        

 Age

1.06

0.99–1.14

1.03

0.95–1.12

1.05

0.97–1.14

1.03

0.95–1.11

 Sex

0.41

0.07–2.30

1.02

0.15–7.03

0.56

0.09–3.46

0.86

0.13–5.83

 Admission mF

1.26

0.51–3.07

NI

NI

NI

NI

NI

NI

 Admission GCS

NI

NI

0.66

0.47–0.92

NI

NI

NI

NI

 Admission HH

NI

NI

NI

NI

2.61

1.21–5.61

NI

NI

 Admission WFNS

NI

NI

NI

NI

NI

NI

2.83

1.29–6.18

 EVD

3.59

0.45–28.58

0.44

0.03–5.75

0.90

0.10–8.38

0.52

0.04–6.48

 Hospital LOS

1.06

1.00–1.12

1.08

1.01–1.16

1.07

1.00–1.15

1.07

1.00–1.15

  1. Model 1: age, sex, EVD. Model 2: age, sex, EVD, ICU LOS. Model 3: age, sex, EVD, hospital LOS
  2. OR, odds ratio; CI, confidence interval; mF, Modified Fisher Scale; HH, Hunt and Hess Scale; GCS, Glasgow Coma Scale; WFNS, World Federation of Neurological Surgeons Scale; EVD, external ventricular drain; ICU, intensive care unit; LOS, length of stay; mRS, Modified Rankin Scale