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Table 1 Predictors of surfactant use in cohort 1 (n = 3,633)*

From: Assessment of surfactant use in preterm infants as a marker of neonatal intensive care unit quality

 

Odds Ratio

95% CI

p-value

PATIENT-LEVEL PREDICTORS*

   

Gestational age

   

30 weeks (n = 621)

Reference

  

31 weeks (n = 620)

0.73

0.57-0.95

0.019

32 weeks (n = 747)

0.68

0.53-0.87

0.002

33 weeks (n = 715)

0.58

0.45-0.75

<0.001

34 weeks (n = 930)

0.69

0.55-0.88

0.003

Race†

   

Non-white (n = 840)

Reference

  

White (n = 2,571)

1.22

1.02-1.47

0.03

Gender

   

Female (n = 1,535)

Reference

  

Male (n = 2,098)

1.34

1.15-1.57

<0.001

Age at admission

   

Day of life 0 (n = 3,107)

Reference

  

Day of life 1 (n = 526)

1.11

0.89-1.38

0.34

Mode of respiratory support (first 48 hrs)

   

NCPAP (n = 672)

Reference

  

Mechanical ventilation (n = 2,961)

54.99

35.86-84.35

<0.001

HOSPITAL-LEVEL PREDICTORS††

   

Research involvement

   

Top 10 hospital based on NIH total awards to children's hospitals

1.48

0.98-2.25

0.065

Surgical volume

   

≥ 29% (median) of admissions to the NICU classified as surgical

1.58

0.79-3.16

0.193

Payer mix

   

≥ 45% (median) of admissions to the hospital paid by Medicaid

0.80

0.40-1.61

0.532

Patient volume

   

≥ 45 (median) Annual ELBW Admissions

1.80

1.02-3.19

0.042

  1. NCPAP = nasal continuous positive airway pressure, NIH = National Institutes of Health; NICU = neonatal intensive care unit; ELBW = extremely low birth weight
  2. *Model includes patient-level variables listed in the table plus hospital fixed effects
  3. †Model includes a term for missing race (n = 222)
  4. ††Model includes patient-level variables listed in the table plus hospital characteristics added individually