Evidence map›Paper›PMID 16966660›Full record

ArticleCMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne2006

Incidence and causes of severe neonatal hyperbilirubinemia in Canada.

Michael Sgro, Douglas Campbell, Vibhuti Shah

Open access · goldAbstract read
In one paragraph

Article in CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 105 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
105citing papers in PubMed, 6 pooled it
18.9field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

105 citing papers in PubMed, 6 syntheses or guidelines pooled it, 327 citations in OpenAlex.

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45 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Michael SgroDepartment of Paediatrics, St. Michael's Hospital, University of Toronto, Toronto, Ont. sgrom@smh.toronto.on.ca
Douglas Campbell
Vibhuti Shah
University of Toronto · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSevere hyperbilirubinemia is the most common cause of neonatal readmission to hospital in Canada even though, in the majority of cases, risk factors can be identified before discharge. Severe neonatal hyperbilirubinemia and kernicterus continue to be reported worldwide in otherwise healthy term infants. We conducted this study to estimate the incidence of severe neonatal hyperbilirubinemia in Canada and to determine underlying causes, improved knowledge of which would be valuable to help identify strategies for risk reduction.

methodsData on term infants 60 days of age and younger with unconjugated hyperbilirubinemia were collected prospectively through the Canadian Paediatric Surveillance Program from 2002 to 2004. Infants were included if they had a peak serum total bilirubin level of more than 425 micromol/L or underwent an exchange transfusion. Infants with rhesus iso-immunization or who were born at less than 36 weeks' gestation were excluded.

resultsOf 367 cases reported, 258 were confirmed to be severe neonatal hyperbilirubinemia, for an estimated incidence of 1 in 2480 live births. Causes were identified in 93 cases and included ABO incompatibility (n = 48), glucose-6-phosphate dehydrogenase deficiency (n = 20), other antibody incompatibility (n = 12) and hereditary spherocytosis (n = 7). The mean peak bilirubin level reported was 471 micromol/L (standard deviation [SD] 76 micromol/L, range 156-841 micromol/L). Fifty-seven infants (22.1%) underwent an exchange transfusion. A total of 185 infants (71.7%) were readmitted to hospital, 121 (65.4%) of them within 5 days of age.

interpretationSevere neonatal hyperbilirubinemia continues to occur frequently in Canada. In the majority of cases, the underlying cause was not identified. The high readmission rate within days after initial discharge indicates a need for a more thorough assessment of newborn infants and consideration of strategies to identify at-risk newborns, such as predischarge measurement of serum bilirubin levels.

Indexed as

AdultBilirubinCanadaExchange Transfusion, Whole BloodFemaleHumansHyperbilirubinemia, NeonatalIncidenceInfantInfant, NewbornMalePatient ReadmissionPopulation SurveillanceRisk FactorsBilirubin

Identifiers

PMID16966660
PMCPMC1559442
OpenAlexW2085110538

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.