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Table 4 Univariate models and multivariate models for risk factors predicting 12-month unfavourable cerebral performance status, n = 980a

From: Intensive care–treated cardiac arrest: a retrospective study on the impact of extended age on mortality, neurological outcome, received treatments and healthcare-associated costs

 

Univariate model

Multivariate model

Variable

OR (95 % CI)

p

OR (95 % CI)

p

Age

    

 Young (< 75y)

1

 

1

 

 Elderly ( > = 75)

3.09 (2.19–4.36)

< 0.001

3.15 (2.04–4.86)

< 0.001

Pre-admission functional status

    

 Independent

1

 

1

 

 Dependent

4.07 (2.48–6.67)

< 0.001

3.00 (1.62–5.57)

< 0.001

Initial CA-rhythm

    

 Non-shockable

1

 

1

 

 Shockable

0.32 (0.25–0.41)

< 0.001

0.43 (0.31–0.61)

< 0.001

Location of arrest

    

 OHCA

1

 

1

 

 IHCA

1.78 (1.37–2.30)

< 0.001

1.50 (1.01–2.25)

0.046

 ICUCA

2.24 (1.47–3.41)

< 0.001

2.82(1.45–5.39)

0.002

Witnessed arrest (not witnessed = 1)

0.47 (0.31–0.70)

< 0.001

0.71(0.44–1.16)

0.171

Time to ROSC in 10-minute intervals

1.15 (1.02–1.29)

0.020

1.61 (1.34–1.94)

< 0.001

APACHE II-score excluding age pointsb

2.51 (2.13–2.95)

< 0.001

1.97 (1.61–2.40)

< 0.001

Total TISS-pointsb

0.99 (0.98-1.00)

0.005

0.99 (0.98-1.00)

0.011

  1. a A total of 980 patients were included. 94 patients had missing CPC, 60 patients had missing functional status, 68 patients had missing initial rhythm, 24 patients had missing if the arrest was witnessed, 118 patients had missing time to ROSC, 1 patient had missing APACHE II-score.
  2. b Each step increases the variable by 10