Table 6. Stepwise logistic regression Analysis for estimating effects of administration of antenatal corticosteroids (ACS), maternal & neonatal antibiotics in combination or singularly for predicting death in preterm infants while controlling for BW, GA, source of admission, mode of delivery and gender.
| B | SE | Sig | Exp(B) | 95% CI for Exp(B) | |||
|---|---|---|---|---|---|---|---|
| Lower | Upper | ||||||
| Step 3 | BW per 250 g | -0.523 | 0.042 | 0.0001 | 0.593 | 0.546 | 0.643 |
| Gestational Age per week | -0.131 | 0.031 | 0.0001 | 0.877 | 0.825 | 0.933 | |
| Inborn | 0.562 | 0.125 | 0.0001 | 0.570 | 0.446 | 0.729 | |
| ACS+ Maternal+ Neonatal Antibiotics | -1.103 | 0.154 | 0.0001 | 0.332 | 0.245 | 0.449 | |
| ACS + Neonatal Antibiotics | -1.194 | 0.234 | 0.001 | 0.303 | 0.192 | 0.479 | |
| ACS +Maternal Antibiotics | 1.050 | 0.326 | 0.001 | 2.825 | 1.507 | 5.414 | |
| ACS only | 0.586 | 0.324 | 0.071 | 1.796 | 0.952 | 3.399 | |
| Maternal and Neonatal Antibiotics | -0.309 | 0.232 | 0.182 | 0.734 | 0.466 | 1.156 | |
| Maternal Antibiotics | -0.016 | 0.225 | 0.932 | 0.984 | 0.633 | 1.530 | |
| Neonatal Antibiotics | -0.246 | 0.262 | 0.346 | 0.782 | 0.468 | 1.305 | |
| Constant | 4.945 | 0.920 | 0.0001 | 140.491 | |||
BW = Birth weight, GA = Gestational Age, ACS = Antenatal Corticosteroids
Infants with missing values (n = 288) for predictors were excluded. Initial temperature was not included as a predictor due to 27.1% of missing values.