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Table 1 Logistic regression modeling of presenting factors associated with death in the intensive care unit

From: Occurrence and adverse effect on outcome of hyperlactatemia in the critically ill

 

OR

95% CI

TISS (per point)

1.02

1.02 to 1.03

APACHE II (per point)

1.08

1.07 to 1.09

Age

1.02

1.02 to 1.03

Lactate concentration (max on day of admission, reference 0 to 2 mmol/L)

1

 

   2 to 5 mmol/L

1.94

1.62 to 2.32

   5 to 10 mmol/L

3.38

2.64 to 4.33

   10 to 15 mmol/L

4.41

2.99 to 6.50

   15 to 20 mmol/L

7.58

3.93 to 14.60

   20-max mmol/L

10.89

4.85 to 24.48

Admission classification medical (reference)

1

 

   Cardiac surgical

0.08

0.06 to 0.11

   Other surgical

0.48

0.38 to 0.60

   Trauma/Neuro

1.64

1.35 to 2.01

  1. The final model (n = 9036; among the total number of 9107 subjects data for TISS and APACHE II were only available for 9036 and 9100 cases, respectively) had good discrimination (area under the receiver operator characteristic curve = 0.852) and calibration (Hosmer-Lemeshow goodness of fit test = 1.0)
  2. APACHE = Acute Physiology and Chronic Health Evaluation; CI = confidence interval; OR = odds ratio; TISS = Therapeutic Interventions Scoring System.