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Table 3 Comparison of parameters between the success group and failure group

From: Lung-thorax compliance measured during a spontaneous breathing trial is a good index of extubation failure in the surgical intensive care unit: a retrospective cohort study

 

Total

Success

Failure

p value

n = 173

n = 162

n = 11

Female, n (%)

59 (34.1)

55 (34.0)

4 (36.4)

0.696*

Age (years)

68.2 ± 12.8

68.2 ± 12.9

69.3 ± 11.7

0.854

APACHE II score

17.6 ± 5.7

17.2 ± 5.3

23.4 ± 8.7

0.015

BMI

23.9 ± 4.2

24.1 ± 4.2

22.1 ± 3.8

0.075

HR (bpm)

77 ± 13.5

76.3 ± 13.1

87.1 ± 15.6

0.018

RR (/min)

16.1 ± 4.7

15.7 ± 4.1

23.3 ± 7.0

0.000

TV (mL)

457.4 ± 102.3

461 ± 98.8

405.4 ± 140.6

0.031

RSBI

38.4 ± 18.3

36.6 ± 15.7

64.3 ± 31.8

0.002

PEEP (cmH2O)

6.1 ± 1.4

6.2 ± 1.3

5.3 ± 2.4

0.065

SpO2 (%)

99.2 ± 1.0

99.2 ± 0.98

98.6 ± 1.4

0.076

EtCO2 (mmHg)

39.3 ± 5.2

39.4 ± 4.8

37.8 ± 9.3

0.828

LTC (mL/cmH2O)

70.1 ± 23.6

71.9 ± 23.0

43.3 ± 14.6

< 0.0001

  1. Mann-Whitney U Test was applied. *Fischer’s exact test was applied for the comparison of ratios. From age to LTC, data were expressed as mean ± standard deviation
  2. APACHE II score Acute Physiology and Chronic Health Evaluation II score, BMI body mass index, HR heart rate, RR respiratory rate, TV tidal volume, RSBI rapid shallow breathing index, PEEP positive end-expiratory pressure, SpO2 arterial oxygen saturation, EtCO2 end-tidal carbon dioxide, LTC lung-thorax compliance