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Pediatrics. 1999 Nov;104(5 Pt 2):1198-203.

Frequency of neonatal bilirubin testing and hyperbilirubinemia in a large health maintenance organization.

Author information

1
Department of Epidemiology and Biostatistics, School of Medicine, University of California, San Francisco, California 94143, USA. newman@itsa.ucsf.edu

Erratum in

  • Pediatrics 2001 Mar-Apr;1(2):126.

Abstract

OBJECTIVE:

To determine the frequency and interhospital variation of bilirubin testing and identified hyperbilirubinemia in a large health maintenance organization.

DESIGN:

Retrospective cohort study.

SETTING:

Eleven Northern California Kaiser Permanente hospitals.

SUBJECTS:

A total of 51,387 infants born in 1995-1996 at >/= 36 weeks' gestation and >/= 2000 g.

MAIN OUTCOME MEASURE:

Bilirubin tests and maximum bilirubin levels recorded in the first month after birth.

RESULTS:

The proportion of infants receiving >/= 1 bilirubin test varied across hospitals from 17% to 52%. The frequency of bilirubin levels >/= 20 mg/dL (342 micromol/L) varied from .9% to 3.4% (mean: 2.0%), but was not associated with the frequency of bilirubin testing (R(2) = .02). Maximum bilirubin levels >/= 25 mg/dL (428 micromol/L) were identified in.15% of infants and levels >/= 30 mg/dL (513 micromol/L) in .01%.

CONCLUSIONS:

Significant interhospital differences exist in bilirubin testing and frequency of identified hyperbilirubinemia. Bilirubin levels >/=20 mg/dL were commonly identified, but levels >/= 25 mg/dL were not.

PMID:
10545573
[Indexed for MEDLINE]
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