Evidence map›Paper›PMID 19575499›Full record

ArticleWorld journal of gastroenterology2009

Translation and validation of the Nepean Dyspepsia Index for functional dyspepsia in China.

Xiao-Ping Tian, Ying Li, Fan-Rong Liang, Guo-Jie Sun, Jie Yan, Xiao-Rong Chang, Ting-Ting Ma, Shu-Yuan Yu, Xu-Guang Yang

Abstract readEvaluation Study
In one paragraph

Article in World journal of gastroenterology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–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

18 citing papers in PubMed.

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  11. Safety and Efficacy ofEvidence-based complementary and alternative medicine : eCAM · 2018
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  13. Acupuncture for Functional Dyspepsia: A Single Blinded, Randomized, Controlled Trial.Evidence-based complementary and alternative medicine : eCAM · 2015
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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

9 authors.

Xiao-Ping TianChengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, China.
Ying Li
Fan-Rong Liang
Guo-Jie Sun
Jie Yan
Xiao-Rong Chang
Ting-Ting Ma
Shu-Yuan Yu
Xu-Guang Yang

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo assess the reliability and validity of the translated version of Nepean Dyspepsia Index (NDI) in Chinese patients with documented functional dyspepsia (FD).

methodsThe translation process included forward translation, back translation, pretest and cross-cultural adaptation. Reliability and validity of the translated version were examined by asking 300 subjects to complete the Chinese version of the NDI. The mean age of subjects was 39.24 years and 68.7% of the subjects were women. Internal consistency analysis with Cronbach's alpha was performed to test the reliability. Correlation analysis was used to assess the content validity. Factor analysis and structural equation models were used to assess the construct validity.

resultsThe Cronbach's alpha coefficients ranged 0.833-0.960, well above the acceptable level of 0.70. Correlation analysis showed that each item had a strong correlation with the corresponding domain, but a weak correlation with other domains. Confirmatory factor analysis indicated that the comparative fit index was 0.94, higher than the acceptable level of 0.90.

conclusionThe Chinese version of the NDI is a reliable and valid scale for measuring health-related quality of life and disease severity in Chinese patients with FD.

Indexed as

LanguageSurveys and QuestionnairesAdultChinaCross-Cultural ComparisonCultural CharacteristicsDyspepsiaFemaleHumansMaleQuality of LifeReproducibility of ResultsSensitivity and SpecificitySeverity of Illness Index

Identifiers

PMID19575499
PMCPMC2705742

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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.