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Table 3 Ordered logistic regression analysis of the association between cluster membership and demographic variables

From: Circulatory trajectories after out-of-hospital cardiac arrest: a prospective cohort study

Demographic variables

Univariable analysis

Multivariable analysis

 

Odds ratio (95% CI)

Odds ratio (95% CI)

Age, per 5 years

1.06 (0.88—1.28)

1.17 (0.84—1.63)

Charlson Comorbidity Index, point

0.97 (0.76—1.23)

1.06 (0.70—1.61)

Initial shockable rhythm, yes

0.02 (0.004—0.14)

0.07 (0.01—0.46)

Time to ROSC, per 5 min

1.04 (1.01—1.09)

1.12 (0.88—1.42)

Base deficit at admission, per mmol/L

1.23 (1.10—1.37)

1.18 (1.03—1.35)

Circulatory shocka in the ER, yes

5.64 (1.71—18.62)

1.93 (0.47—7.85)

  1. In ordered logistic regression, the odds ratios among clusters are equal, and the odds ratio should be interpreted as the odds of a higher cluster than the compared cluster when the explanatory variable is increased by one unit and all other variables are held constant. Pseudo R2 = 0.30
  2. CI Confidence interval, ER Emergency room, ROSC Return of spontaneous circulation
  3. aSystolic blood pressure < 90 mmHg or in need of fluids and/or vasopressors to maintain systolic blood pressure > 90 mmHg
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BMC Anesthesiology

ISSN: 1471-2253

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