Table 5 Predictors of subnormal weight (<–2 s.d.) at 20 months corrected age, results of stepwise logistic regression analysis

From: Improved weight attainment of extremely low-gestational-age infants with bronchopulmonary dysplasia

Variable

Stage I

Stage II

Stage II

Stage IV

 

OR

(95% CI)

OR

(95% CI)

OR

(95% CI)

OR

(95% CI)

Time period (I vs II)

0.39

(0.21,0.72)**

0.34

(0.17,0.71)**

0.26

(0.12,0.56)**

0.26

(0.12,0.58)**

Sociodemographic status

 Maternal education <high school

0.86

(0.38,1.96)

0.81

(0.35,1.88)

0.96

(0.41,2.26)

0.97

(0.40,2.31)

 Race

0.87

(0.48,1.60)

0.83

(0.45,1.55)

0.75

(0.39,1.42)

0.71

(0.37,1.37)

 Sex of child

1.39

(0.77,2.50)

1.41

(0.77,2.57)

1.44

(0.78,2.69)

1.43

(0.76,2.71)

 Multiple birth

1.21

(0.56,2.62)

1.17

(0.52,2.63)

1.42

(0.61,3.30)

1.32

(0.56,3.12)

Neonatal therapy

 Surfactant

  

1.97

(0.59,6.64)

2.02

(0.58,7.12)

2.40

(0.65,8.83)

 Postnatal steroids

  

1.17

(0.59,2.33)

0.77

(0.36,1.65)

0.65

(0.30,1.43)

 Indomethacin

  

1.95

(0.95,3.98)

1.94

(0.93,4.05)

1.85

(0.88,3.90)

 PDA ligation

  

0.78

(0.40,1.53)

0.66

(0.32,1.33)

0.60

(0.29,1.24)

Neonatal morbidity

 Severity of lung diseasea

    

1.02

(1.00,1.03)*

1.01

(1.00,1.03)*

 Severely abnormal ultrasoundb

    

2.49

(1.17,5.30)*

1.56

(0.68,3.61)

Neurosensory outcome

      

3.03

(1.39,6.62)**

  1. Abbreviations: 95% C.I., 95% confidence interval; OR, odds ratio; PDA, patent ductus arteriosus.
  2. aDays on ventilator.
  3. bIncludes grades III–IV hemorrhage, periventricular leukomalacia and ventricular dilatation at discharge.
  4. *P<0.05, **P<0.001.