CPAP before

(No. =)

CPAP after

(No. =)

Paired t-test

Mean

SD

Mean

SD

T

P-value

PH

7.3935

0.7909

7.3850

0.6985

1.509

0.148

PCO₂

38.3000

9.6250

39.9000

8.0452

−1.902

0.072

HCO₃

23.9500

3.1199

24.4500

2.7042

−1.453

0.163

PO₂

62.3000

9.0907

78.0500

14.7129

−8.064

000

SO₂

88.6000

2.8172

93.5500

4.3706

−7.854

000