Factor

Regression coefficients

standard error

WaldX2

P value

OR

95% CI

Gestational age

0.916

0.206

8.455

<0.001

2.487

1.671 - 3.732

Birth weight

0.888

0.317

9.186

<0.001

2.483

1.307 - 4.526

Oxygen usage

0.544

0.162

4.967

<0.05

1.778

1.284 - 2.436

Gestational hypertension

0.552

0.218

4.873

<0.05

1.735

1.123 - 2.655

Gestational diabetes

0.619

0.285

4.584

0.001

1.915

1.097 - 3.329

Fetal distress

0.712

0.335

3.156

0.019

2.035

1.055 - 3.915

Bronchopulmonary dysplasia

0.648

0.312

3.545

0.001

1.914

1.056 - 3.918