Table 1 Characteristics of enrolled patients with and without blood gas within 1 h of birth

From: Performance of the Silverman Andersen Respiratory Severity Score in predicting PCO2 and respiratory support in newborns: a prospective cohort study

 

Blood gas obtained (n = 33)

No blood gas (n = 107)

 
 

Mean

(Range)

Mean

(Range)

P-value

Gestation (weeks)

32.5

(24–41)

35.7

(26–42)

<0.001**

Birth weight (g)

1924

(574–4286)

2525

(742–4966)

<0.001*

RSS

3.9

(0–8)

1.6

(0–10)

<0.001†

 

Proportion

(n)

Proportion

(n)

P-value^

Any antenatal steroids

73%

(24/33)

36%

(37/102)

<0.001^

Respiratory support increased in first 24 h

77%

(23/30)

26%

(21/82)

<0.001^

  1. Each analysis is based on available data for that measure, as such denominators differ
  2. RSS Silverman Andersen respiratory severity score
  3. *Two-sided t-test
  4. **Two-sided t-test with unequal variance
  5. ^Fisher's exact test
  6. †Exact Wilcoxon’s rank sum test
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