Table 2.

Variation Infants/Children with Severe BPD versus Non-Severe BPD

(Mean ± S.D. or % yes) [Range]	Severe BPD ≤2 years of age (n = 162)	Non-Severe BPD ≤2 years of age (n = 84)	P Value*
Age at ascertainment (years)	0.8 ± 0.5 [0.2, 2.0]	0.7 ± 0.5 [0.2, 2.0]	0.13
Living with Smokers	10.5%	10.7%	0.92
Public Insurance	45.8% (n = 155)	42.1% (n = 76)	0.81
Attends Daycare	22.8%	19.2% (n = 78)	0.74
Any Home Respiratory Support	54.3%	40.5%	0.40
Any Home Positive Pressure Ventilation (Ventilator or CPAP/BiPAP)	16.1%	1.2%	0.001
Any Diuretics	44.4%	16.7%	<0.001
Any Inhaled Steroids	56.2%	27.4%	0.010
Any Pulmonary Vasodilator Medications	13.6%	1.2%	0.028
Any Feeding Tube	46.3%	16.7%	<0.001
Sick Office or Urgent Care Visits**	19.4% (n = 160)	18.4% (n = 76)	0.88
Emergency Department Visits**	19.5% (n = 159)	19.5% (n = 77)	0.74
Hospital Admissions**	15.8% (n = 158)	12.8% (n = 78)	0.69
Courses of Systemic Steroids**	15.7% (n = 153)	9.2% (n = 76)	0.27

^*P values were generated through logistic regression clustered by center and adjusted for age at which clinical features were ascertained. The p value for age of ascertainment was generated via t test.

^**Since NICU discharge or last clinic visit.