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Table 1 Baseline characteristics and diseases that led to acute respiratory failure of the study groups

From: Noninvasive ventilation immediately after extubation improves weaning outcome after acute respiratory failure: a randomized controlled trial

Variable

NIV

(n= 20)

Oxygen mask

(n= 18)

P valuea

Gender (M/F)

14/6

12/6

1.0

Age (years), mean (SD)

50.79 (17.77)

48.88 (22.38)

0.77

Days of MV, mean (SD)

9.85 (8.05)

9.5 (6.06)

0.88

APACHE II, mean (SD)

16.90 (6.81)

15.28 (5.65)

0.43

Pneumonia, number (%)

16 (80)

16 (88.9)

0.66

COPD, number (%)

7 (35)

3 (16.7)

0.28

Abdominal surgery, number (%)

5 (25)

4 (22.2)

1.0

Sepsis, number (%)

4 (20)

2 (11.1)

0.66

Asthma, number (%)

2 (10)

1 (5.5)

1.0

Cardiac failure, number (%)

2 (10)

1 (5.5)

1.0

  1. aSignificant values with significance level of 0.05. APACHE II, Acute Physiology and Chronic Health Evaluation; COPD, chronic obstructive pulmonary disease; NIV, noninvasive positive-pressure ventilation.