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Table 3 Incidence of low birth-weight, low pulse oxygen saturation at first minute, low Apgar at first minute, and low neurological score at 24 hours.

From: Arterial oxygen saturation in healthy newborns delivered at term in Cerro de Pasco (4340 m) and Lima (150 m)

Incidence of

Lima

Cerro de Pasco

OR

Confidence Interval (at 95%)

P

Low birthweight

3/131 (2.29%)

2/37 (5.40%)

2.44

0.39–15.18

0.3

Low pulse oxygen saturation

4/131 (3.05%)

8/37 (21.62)

8.76

2.47–31.07

0.0001

Low Apgar at first minute

3/131 (2.29%)

7/37 (18.92%)

9.96

2.43–40.77

0.0001

Low neurological score at 24 h

1/131 (0.76%)

8/37 (21.62%)

30.33

3.60–255.92

0.0001

  1. Cases are in the numerator. OR: Odds Ratio. P: Probability.