Evidence map›Paper›PMID 29146619›Full record

ArticlePediatrics2017

Urinary Neutrophil Gelatinase-Associated Lipocalin for the Diagnosis of Urinary Tract Infections.

Tamar R Lubell, Jonathan M Barasch, Katherine Xu, Maria Ieni, Keven I Cabrera, Peter S Dayan

Abstract read
In one paragraph

Article in Pediatrics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 4 pooled it
–field-weighted citation impact
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

27 citing papers in PubMed, 4 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Trial
  6. Article
  7. Article
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  9. Review
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  12. Article
  13. Urinary tract infections in children: Testing a novel, noninvasive, point-of-care diagnostic marker.Academic emergency medicine : official journal of the Society for Academic Emergency Medicine · 2022
    Article
  14. Biomarkers for febrile urinary tract infection in children.Pediatric nephrology (Berlin, Germany) · 2022
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Innate immunity and urinary tract infection.Pediatric nephrology (Berlin, Germany) · 2020
    Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Tamar R LubellDepartments of Pediatrics and tl2538@cumc.columbia.edu.
Jonathan M BaraschMedicine, College of Physicians and Surgeons, Columbia University, New York, New York.
Katherine XuMedicine, College of Physicians and Surgeons, Columbia University, New York, New York.
Maria IeniDepartments of Pediatrics and.
Keven I CabreraDepartments of Pediatrics and.
Peter S DayanDepartments of Pediatrics and.

Funding

Transcriptional Regulation of Urothelial Differentiation During Homeostasis and Repair in Response to Urinary Tract InfectionU54DK104309 · NIDDK · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI JONATHAN M. BARASCH, ALI G GHARAVI · 2014 to 2026
$17.7M
IRON LIPOCALIN NGAL IN KIDNEY DISEASER01DK073462 · NIDDK · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI BARASCH, JONATHAN M. · 2007 to 2015
$3.0M
NIDDK NIH HHS R01 DK073462NIDDK NIH HHS U54 DK104309
6 · The paper itself

Abstract

objectivesTo determine the accuracy of the novel biomarker urinary neutrophil gelatinase-associated lipocalin (uNGAL) to diagnose urinary tract infections (UTIs) in febrile infants and young children.

methodsProspective cross-sectional study of febrile infants <3 months ( ≥ 38.0°C) and children 3 to 24 months (≥ 39.0°C) evaluated for UTIs. uNGAL levels, urinalysis, Gram-stain and culture were obtained. UTI was defined by colony counts.

resultsOf 260 patients, 35 (13.5%) had UTIs. Median uNGAL levels were 215.1 ng/mL (interquartile range: 100.3-917.8) and 4.4 ng/mL (interquartile range: 1.6-11.8) in the groups diagnosed with and without UTIs, respectively. The area under the receiver-operating characteristic curve for uNGAL was 0.978 (95% confidence interval [CI]: 0.948-1.000). At a threshold uNGAL level of 39.1 ng/mL, sensitivity was 97.1% (95% CI: 83.4-99.9) and specificity was 95.6% (95% CI: 91.7-97.7). uNGAL had higher sensitivity than the combination of leukocyte esterase (in trace or greater amounts) or nitrite (+) (97.1%, 95% CI: 83.4-99.9 vs 74.3%, 95% CI: 56.4-86.9), with similar specificity (95.6%, 95% CI: 91.7-97.7 vs 97.3%, 95% CI: 94.0-98.9). uNGAL had higher sensitivity than Gram-stain (97.1%, 95% CI: 83.4-99.9 vs 74.3%, 95%: CI: 56.4-86.9), with similar specificity (95.6%, 95% CI: 91.7-97.7 vs 100.0%, 95% CI: 97.9-100.0).

conclusionsuNGAL has substantial accuracy to identify those with and without UTIs in infants and young children. Further studies will need to confirm our findings and determine if uNGAL is a more cost-effective test than standard screening tests.

Indexed as

BacteriaBiomarkersColony Count, MicrobialCross-Sectional StudiesDisease ProgressionFemaleHumansInfantInfant, NewbornLipocalin-2MalePrognosisProspective StudiesReproducibility of ResultsUrinalysisUrinary Tract InfectionsBiomarkersLCN2 protein, humanLipocalin-2

Identifiers

PMID29146619
PMCPMC6658088

What OpenQuestion holds

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Registered trials

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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.