Evidence map›Paper›PMID 31703081›Full record

ArticlePloS one2019

Olfactory screening of Parkinson's Disease patients and healthy subjects in China and Germany: A study of cross-cultural adaptation of the Sniffin' Sticks 12-identification test.

Elmar H Pinkhardt, Huijing Liu, Di Ma, Jing Chen, Adrian Pachollek, Martin S Kunz, Jan Kassubek, Albert C Ludolph, Yining Huang, Haibo Chen and 3 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 25% 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

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

  1. Systematic review and meta-analysis of Sniffin Sticks Test performance in Parkinson's disease patients in different countries.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2022
    Pooled it
  2. Article
  3. Validation of the Hebrew version of the "Sniffin' Sticks" olfactory test: a cross-sectional study in an Israeli cohort.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2025
    Article
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  11. International consensus statement on allergy and rhinology: Olfaction.International forum of allergy & rhinology · 2022
    Review
  12. Article
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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

13 authors at 3 institutions in 2 countries.

Elmar H PinkhardtUlm University, Department of Neurology, Ulm, Germany.ORCID 0000-0003-1579-3472
Huijing LiuNeurology Department, Beijing Hospital, National Center of Gerontology, China, Dong Dan, Beijing, China.
Di MaDepartment of Neurology, Peking University First Hospital, Beijing, China.
Jing ChenDepartment of Neurology, Peking University First Hospital, Beijing, China.
Adrian PachollekUlm University, Department of Neurology, Ulm, Germany.
Martin S KunzUlm University, Department of Neurology, Ulm, Germany.
Jan KassubekUlm University, Department of Neurology, Ulm, Germany.
Albert C LudolphUlm University, Department of Neurology, Ulm, Germany.
Yining HuangDepartment of Neurology, Peking University First Hospital, Beijing, China.
Haibo ChenNeurology Department, Beijing Hospital, National Center of Gerontology, China, Dong Dan, Beijing, China.
G Bernhard LandwehrmeyerUlm University, Department of Neurology, Ulm, Germany.
Zhaoxia WangDepartment of Neurology, Peking University First Hospital, Beijing, China.
Wen SuNeurology Department, Beijing Hospital, National Center of Gerontology, China, Dong Dan, Beijing, China.
Universität Ulm · DEPeking University · CNBeijing Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOlfactory testing is a useful tool in the differential diagnosis of Parkinson's Disease (PD). Although fast and easy to use, the high intercultural variability of odor detection limits the world-wide use of the most common test sets.

objectiveThe aim of this study was to test one of the most commonly used olfactory tests (Sniffin' Sticks 12-identification test) in an adapted version for a Chinese population of healthy subjects and PD patients.

methodsFor this purpose, cohorts of 39 Chinese and 41 German PD patients as well as 70 Chinese and 100 German healthy subjects have been examined both with the original and the adapted version of the Sniffin' Sticks test, the latter being designed according to the regional culture.

resultsThe adapted Chinese version of the Sniffin' Sticks 12 identification test proved to discriminate Chinese PD patients from controls with a high specificity but relatively low sensitivity. Yet not all odor exchanges would have been necessary as the original odors including liquorice and coffee showed an equally high identification rate in the Chinese and German cohorts.

conclusionsThe results showed that the newly adapted test could be used as a screening test for PD related olfactory dysfunction in a Chinese population. However further investigation will be necessary to optimize the selection of odors for the Chinese version of the test.

Indexed as

Cross-Cultural ComparisonSmellCase-Control StudiesChinaGermanyHumansMass ScreeningParkinson DiseaseROC CurveSensitivity and SpecificitySensory Thresholds

Identifiers

PMID31703081
PMCPMC6839844
OpenAlexW2984432550

What OpenQuestion holds

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LicenceCC BY
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.