Evidence map›Paper›PMID 9518907›Full record

ArticleBMJ (Clinical research ed.)1998

Diagnosis of Creutzfeldt-Jakob disease by measurement of S100 protein in serum: prospective case-control study.

M Otto, J Wiltfang, E Schütz, I Zerr, A Otto, A Pfahlberg, O Gefeller, M Uhr, A Giese, T Weber and 2 more

Erratum issuedOpen access · bronzeAbstract read
In one paragraph

Article in BMJ (Clinical research ed.), 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
5.5field-weighted citation impact, top 3% 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

19 citing papers in PubMed, 119 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 3 institutions in 1 country.

M OttoNeurologische Klinik und Poliklinik, Georg-August-Universität Göttingen, Germany.
J Wiltfang
E Schütz
I Zerr
A Otto
A Pfahlberg
O Gefeller
M Uhr
A Giese
T Weber
H A Kretzschmar
S Poser
University of Göttingen · DEMarienkrankenhaus Hamburg · DEMax Planck Institute of Psychiatry · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo analyse serum concentrations of brain specific S100 protein in patients with Creutzfeldt-Jakob disease and in controls.

designProspective case-control study.

settingNational Creutzfeldt-Jakob disease surveillance unit. SUBJECTS: 224 patients referred to the surveillance unit with suspected Creutzfeldt-Jakob disease and 35 control patients without dementia.

main outcome measureSerum concentration of S100 protein in patients with Creutzfeldt-Jakob disease, in patients with other diseases causing dementia, and in the control group.

resultsOf the 224 patients with suspected Creutzfeldt-Jakob disease, 65 were classed as definitely having the disease after neuropathological verification, an additional 6 were classed as definitely having the disease as a result of a genetic mutation, 43 as probably having the disease, 36 as possibly having the disease, and 74 patients were classed as having other disease. In the 108 patients classed as definitely or probably having Creutzfeldt-Jakob disease the median serum concentration of S100 was 395 pg/ml (SD 387 pg/ml). This was significantly higher than concentrations found in the 74 patients classed as having other diseases (median 109 pg/ml; SD 177 pg/ml; P = 0.0001). At a cut off point of 213 pg/ml sensitivity for the diagnosis of the disease was 77.8% (95% confidence interval 68.8% to 85.2%) and specificity was 81.1% (70.3% to 89.3%). There was a significant difference in survival at different concentrations of S100 in Kaplan-Meier curves (P = 0.023).

conclusionMeasurement of serum concentrations of S100 is a valuable tool which can be used more easily than tests on cerebrospinal fluid in the differential diagnosis of Creutzfeldt-Jakob disease. More studies are needed to determine whether serial testing of serum S100 improves diagnostic accuracy.

Indexed as

S100 ProteinsBiomarkersCalcium-Binding ProteinsCase-Control StudiesCreutzfeldt-Jakob SyndromeHumansProspective StudiesSensitivity and SpecificitySurvival AnalysisBiomarkersCalcium-Binding ProteinsS100A1 proteinS100 Proteins

Identifiers

PMID9518907
PMCPMC28459
OpenAlexW2138013650

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.