Table 3.

Demographic and Inpatient Variation among Centers in Infants/Children with Severe BPD

Mean ± S.D. Median [Range of mean values between centers]		Severe BPD (n = 263)	Differences between Centers P Value
Sex (% female; n=261)		43.0% [20.0-66.7%]	0.06
Race (%)	White	53.2% [40.0-66.7%]	0.16
	Black or African-American	36.1% [0.0-47.6%]	0.002
	Asian	4.9% [0.0-20.0%]	0.11
	Native Hawaiian/Pacific Islander	1.1% [0.0-5.3%]	0.11
	Native American/Alaska Native	0.0%	-
	Other	6.8% [2.3-40.0%]	0.011
Ethnicity (% Hispanic; n=261)		8.8% [0.0, 40.0%]	0.043
Gestational Age (weeks)		26.6 ± 2.5 Median: 26.0 [25.9, 27.2]	0.96
Birth Weight (grams; n=262)		877 ± 383 Median: 770 [722, 942]	0.75
Multiple Gestation (% yes; n=262)		19.5% [11.5, 44.4%]	0.27
Oligohydramnios (% yes; n=234)		9.0% [0.0-25.0%]	0.15
In Vitro Fertilization (% yes; n=247)		10.5% [0.0, 33.3%]	0.16
Delivery (% Caesarean; n=258)		67.1% [60.5-88.9%]	0.39
Age at Initial Hospital Discharge (months; n=260)		6.0 ± 3.5 Median: 4.6 [4.1, 7.6]	<0.001
CSF Shunt (% yes; n=257)		8.6% [0.0-13.6%]	0.19
PDA (% yes; n=250)	Not closed	3.6% [0.0, 10.5%]	<0.001
	Closed spontaneously	54.4% [13.5-88.9%]
	Closed with medication	20.0% [0.0-43.2%]>
	Closed with procedure	22.0% [0.0-50.0%]
Pulmonary Hypertension (% yes after 36 weeks; n=258)		27.1% [11.6, 80.0%]	<0.001
Cyanotic Heart Disease (% yes; n=262)		0.8% [0.0, 3.9%]	0.21
Congenital anomaly or syndrome (% yes; n=256)		12.1% [0.0-25.0%]	0.023