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Table 2 Demographic and summary characteristics of ALTA sub-groups based on TIMP-1 levels (all patients)

From: Plasma TIMP-1 as a sex-specific biomarker for acute lung injury

Characteristic

Low TIMP-1 (≤ 159.7 ng/mL)

(n = 60)

High TIMP-1 (> 159.7 ng/mL)

(n = 40)

P value

Age

50.87 ± 2.07

50.60 ± 2.36

0.934

APACHE III score

87.12 ± 3.37

99.75 ± 5.02

0.032

PaO2/FIO2

138.53 ± 7.82

147.13 ± 9.38

0.485

Patient outcomes

 Ventilator-free days

16.27 ± 1.24

12.45 ± 1.70

0.066

 ICU-free days

15.17 ± 1.09

11.45 ± 1.55

0.047

 Organ failure-free days

14.87 ± 1.35

13.60 ± 1.71

0.560

  1. Means and SEMs were reported for continuous variables
  2. APACHE III score Acute Physiology, Age and Chronic Health Evaluation; PaO2 partial pressure of oxygen, FIO2 fraction of inspired oxygen