Evidence map›Paper›PMID 36737114›Full record

ArticleMayo Clinic proceedings2023

Population-Based Evaluation of Total Protein in Cerebrospinal Fluid.

Kalli J Fautsch, Darci R Block, Jonathan Graff-Radford, Feng Wang, Emily C Craver, David O Hodge, Jeremy K Cutsforth-Gregory, Khin P Kilgore, Ronald C Petersen, David S Knopman and 5 more

Open access · greenAbstract read
In one paragraph

Article in Mayo Clinic proceedings, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
3.9field-weighted citation impact, top 6% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

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  13. Tumefactive demyelination in older adults: A scoping review of published cases.Multiple sclerosis journal - experimental, translational and clinical
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

15 authors at 4 institutions in 1 country.

Kalli J FautschDepartment of Ophthalmology, Mayo Clinic, Rochester, MN; University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND.
Darci R BlockDepartment of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN.
Jonathan Graff-RadfordDepartment of Neurology, Mayo Clinic, Rochester, MN.
Feng WangDepartment of Ophthalmology, Mayo Clinic, Rochester, MN.
Emily C CraverDepartment of Quantitative Health Sciences/Biomedical Statistics and Informatics, Mayo Clinic, Jacksonville, FL.
David O HodgeDepartment of Quantitative Health Sciences/Biomedical Statistics and Informatics, Mayo Clinic, Jacksonville, FL.
Jeremy K Cutsforth-GregoryDepartment of Neurology, Mayo Clinic, Rochester, MN.
Khin P KilgoreDepartment of Ophthalmology, Mayo Clinic, Rochester, MN.
Ronald C PetersenDepartment of Neurology, Mayo Clinic, Rochester, MN.
David S KnopmanDepartment of Neurology, Mayo Clinic, Rochester, MN.
Eoin FlanaganDepartment of Neurology, Mayo Clinic, Rochester, MN.
Michel ToledanoDepartment of Neurology, Mayo Clinic, Rochester, MN.
Michelle M MielkeDepartment of Neurology, Mayo Clinic, Rochester, MN; Department of Quantitative Health Sciences, Division of Epidemiology, Mayo Clinic, Rochester, MN.
M Tariq BhattiDepartment of Ophthalmology, Mayo Clinic, Rochester, MN; Department of Neurology, Mayo Clinic, Rochester, MN.
John J ChenDepartment of Ophthalmology, Mayo Clinic, Rochester, MN; Department of Neurology, Mayo Clinic, Rochester, MN. Electronic address: chen.john@mayo.edu.
Mayo Clinic in Arizona · USMayo Clinic in Florida · USMayo Clinic · USUniversity of North Dakota · US

Funding

SUPPLEMENT TO ALZHEIMERS DISEASE PATIENT REGISTRYU01AG006786 · NIA · MAYO CLINIC ROCHESTER · PI GRAFF-RADFORD, JONATHAN, JACK, CLIFFORD R. · 1986 to 2023
$49.6M
Rochester Epidemiology ProjectR01AG034676 · NIA · MAYO CLINIC ROCHESTER · PI ROCCA, WALTER A, ST SAUVER, JENNIFER LYNN · 2010 to 2019
$9.5M
Interdisciplinary Infrastructure for Aging Research: Rochester Epidemiology ProjectR33AG058738 · NIA · MAYO CLINIC ROCHESTER · PI LEBRASSEUR, NATHAN K, OLSON, JANET E · 2020 to 2022
$2.4M
NIA NIH HHS R01 AG034676NIA NIH HHS R33 AG058738NIA NIH HHS U01 AG006786
6 · The paper itself

Abstract

objectivesTo present a normal range of cerebrospinal fluid (CSF) protein levels in a community-based population and to evaluate factors that contribute to CSF protein level variability. PATIENTS AND

methodsSamples of CSF protein were obtained from participants aged 32 to 95 years who underwent lumbar puncture (LP) between November 1, 2007, and October 1, 2017, as part of the Mayo Clinic Study of Aging, a longitudinal, population-based study of residents of Olmsted County, Minnesota.

resultsA total of 633 participants (58.1% male; 99.1% White; mean ± SD age, 70.9±11.6 years) underwent LP with recorded CSF protein level. Mean ± SD CSF protein level was 52.2±18.4 mg/dL (to convert to mg/L, multiply by 10), with a 95% reference interval of 24.0 to 93.4 mg/dL (range, 14.0-148.0 mg/dL). Spinal stenosis and arterial hypertension were associated with higher CSF protein levels on univariable analysis (P<.001). Increasing age, male sex, and diabetes were all independently associated with higher CSF protein levels on multivariable analysis (P<.001). In the 66 participants with repeated LPs within 2.5 years, the coefficient of repeatability was 26.1 mg/dL. Eleven participants (16.7%) had a CSF protein level difference of 20 mg/dL or more between serial LPs, and 4 (6.1%) had a difference of 25 mg/dL or more. There was a trend toward greater CSF protein level variability in patients with spinal stenosis (P=.054).

conclusionThis large population-based study showed that CSF protein level can vary significantly among individuals. Elevated CSF protein level was independently associated with older age, male sex, and diabetes and is higher than listed in many laboratories. These findings emphasize the necessity of evidence-based reevaluation and standardization of CSF protein metrics.

Indexed as

Spinal StenosisAgedAged, 80 and overAgingCerebrospinal FluidCerebrospinal Fluid ProteinsFemaleHumansLipopolysaccharidesMaleMiddle AgedSpinal PunctureCerebrospinal Fluid ProteinsLipopolysaccharides

Identifiers

PMID36737114
PMCPMC10134077
OpenAlexW4318832779

What OpenQuestion holds

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LicenceTDM
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.