Evidence map›Paper›PMID 35951609›Full record

ArticlePloS one2022

Trends in nephrology referral patterns for patients with chronic kidney disease: Retrospective cohort study.

Anukul Ghimire, Feng Ye, Brenda Hemmelgarn, Deenaz Zaidi, Kailash K Jindal, Marcello A Tonelli, Matthew Cooper, Matthew T James, Maryam Khan, Mohammed M Tinwala and 6 more

Abstract read
In one paragraph

Article in PloS one, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  10. Nurse Practitioner Care Compared with Primary Care or Nephrologist Care in Early CKD.Clinical journal of the American Society of Nephrology : CJASN · 2023
    Article
  11. 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

16 authors.

Anukul GhimireDivision of Nephrology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada.ORCID 0000-0001-9165-4920
Feng YeDivision of Nephrology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada.
Brenda HemmelgarnDivision of Nephrology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada.
Deenaz ZaidiDivision of Nephrology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada.
Kailash K JindalDivision of Nephrology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada.
Marcello A TonelliDepartment of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
Matthew CooperDivision of Nephrology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada.
Matthew T JamesDepartment of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
Maryam KhanDivision of Nephrology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada.
Mohammed M TinwalaDivision of Nephrology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada.ORCID 0000-0002-3983-6134
Naima SultanaDivision of Nephrology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada.
Paul E RonksleyDepartment of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
Shezel MuneerDivision of Nephrology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada.
Scott KlarenbachDivision of Nephrology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada.
Ikechi G OkpechiDivision of Nephrology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada.
Aminu K BelloDivision of Nephrology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada.ORCID 0000-0002-6905-5937

Funding

CIHR
6 · The paper itself

Abstract

introductionInformation on early, guideline discordant referrals in nephrology is limited. Our objective was to investigate trends in referral patterns to nephrology for patients with chronic kidney disease (CKD).

methodsRetrospective cohort study of adults with ≥1 visits to a nephrologist from primary care with ≥1 serum creatinine and/or urine protein measurement <180 days before index nephrology visit, from 2006 and 2019 in Alberta, Canada. Guideline discordant referrals were those that did not meet ≥1 of: Estimated glomerular filtration rate (eGFR) ˂ 30 mL/min/1.73m2, persistent albuminuria (ACR ≥ 300 mg/g, PCR ≥ 500 mg/g, or Udip ≥ 2+), or progressive and persistent decline in eGFR until index nephrology visit (≥ 5 mL/min/1.73m2).

resultsOf 69,372 patients with CKD, 28,518 (41%) were referred in a guideline concordant manner. The overall rate of first outpatient visits to nephrology increased from 2006 to 2019, although guideline discordant referrals showed a greater increase (trend 21.9 per million population/year, 95% confidence interval 4.3, 39.4) versus guideline concordant referrals (trend 12.4 per million population/year, 95% confidence interval 5.7, 19.0). The guideline concordant cohort were more likely to be on renin-angiotensin system blockers or beta blockers (hazard ratio 1.14, 95% confidence interval 1.12, 1.16), and had a higher risk of CKD progression (hazard ratio 1.09, 95% confidence interval 1.06, 1.13), kidney failure (hazard ratio 7.65, 95% confidence interval 6.83, 8.56), cardiovascular event (hazard ratio 1.40, 95% confidence interval 1.35,1.45) and mortality (hazard ratio 1.58, 95% confidence interval 1.52, 1.63).

conclusionsA significant proportion nephrology referrals from primary care were not consistent with current guideline-recommended criteria for referral. Further work is needed to identify quality improvement initiatives aimed at enhancing referral patterns of patients with CKD.

Indexed as

NephrologyRenal Insufficiency, ChronicAdultAlbertaCohort StudiesDisease ProgressionGlomerular Filtration RateHumansReferral and ConsultationRetrospective Studies

Identifiers

PMID35951609
PMCPMC9371302

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.