TABLE 2

Bivariate Analyses by Level of Care

VariableWard or Newborn Level 1NICU Level 2–4 or PICUP
Patients93 3701256
LOS, d, mean (SD)2.69 (1.05)2.84 (1.43)< .001
Cost, US$, mean (SD)1566 (1465)2278 (2551)< .001
30-d readmissions rate, n (%)2901 (3.1)37 (3.0).99
Girls, n (%)46 937 (50.3)584 (46.5).007
Race, n (%)< .001
 White51 096 (57.4)734 (60.3)
 African American8610 (9.7)248 (20.4)
 Hispanic14 622 (16.4)87 (7.2)
 Asian American5614 (6.3)44 (3.6)
 Other9144 (10.2)104 (8.6)
Insurance, n (%)< .001
 Private49 609 (54.2)634 (50.6)
 Medicaid34 301 (37.5)478 (38.1)
 Self-pay4889 (5.3)65 (5.2)
 Other2683 (2.9)75 (6.0)
 Hemolysis4721 (5.1)296 (23.6)< .001
Year, n (%)< .001
 200514 477 (15.5)222 (17.7)
 200614 407 (15.4)241 (19.2)
 200713 615 (14.6)181 (14.4)
 200813 208 (14.2)188 (15.0)
 200914 035 (15.0)168 (13.4)
 201012 614 (13.5)134 (10.7)
 201111 014 (11.8)122 (9.7)