Evidence map›Paper›PMID 31983195›Full record

ArticleAsian Pacific journal of cancer prevention : APJCP2020

The Azeri Version of European Organization for Research and Treatment of Cancer Core Quality of Life Questionnaire (EORTC QLQ-C30): Translation and Validation.

Mahammad M Davudov, Iraj Harirchi, Namig Amiraliyev, Elnara Mehtiyeva, Zoheir Mirzajani, Kanan Amiraliyev, Narmin Rustamli, Jayran Zebardast, Ali Montazeri

Abstract readValidation Study
In one paragraph

Article in Asian Pacific journal of cancer prevention : APJCP, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

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

  1. Impact of rehabilitation with dental implants on the quality of life of patients undergoing maxillofacial reconstruction: a systematic review.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2025
    Pooled it
  2. Article
  3. Psychometric properties of the Spanish version of the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C30).Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2022
    Article
  4. 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

9 authors.

Mahammad M DavudovCancer Research Center of Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran.
Iraj HarirchiCancer Research Center of Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran.
Namig AmiraliyevDepartment of Oral and Maxillofacial Surgery, Azerbaijan Medical University, Baku, Azerbaijan.
Elnara MehtiyevaDepartment of Oncology, Azerbaijan Medical University, Baku, Azerbaijan.
Zoheir MirzajaniCancer Research Center of Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran.
Kanan AmiraliyevDepartment of Oral and Maxillofacial Surgery, Azerbaijan Medical University, Baku, Azerbaijan.
Narmin RustamliDepartment of Oral and Maxillofacial Surgery, Azerbaijan Medical University, Baku, Azerbaijan.
Jayran ZebardastCognitive Science Special Linguistics, Institute of Cognitive Sciences, Tehran, Iran.
Ali MontazeriPopulation Health Research Group, Health Metrics Research Center, Iranian Institute for Health Sciences Research, ACECR, Tehran, Iran.ORCID 0000-0002-5198-9539

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveQuality of life in cancer patients has become an important outcome measure. This study aimed to translate and validate the European Cancer Research and Treatment Core Quality of Life Questionnaire (EORTC QLQ-C30) in Azerbaijan.

methodsForward-backward procedure was applied to translate the EORTC QLQ-C30 from English into Azeri. Then a cross sectional study was conducted to validate the questionnaire in Azerbaijan. A sample of patients with confirmed diagnosis of oral cancer completed the Azeri version of the questionnaire from January 2017 to December 2018. Construct validity was assessed by performing know groups comparison and item-scale correlation matrix. Reliability was examined by estimating the Cronbach's alpha coefficient for internal consistency.

resultsIn all 141 patients with oral cancer participated in the study. Known groups comparison indicated that the Azeri version of EORTC QLQ-C30 well differentiated between patients who differed in the disease stage. Those with higher stage reported lower functioning and higher symptoms. In addition item-scale correlation matrix showed a good correlation between items and its own hypothesized subscales as expected (Pearson correlation coefficient ranging from 0.735-0.978). The Cronbach's alpha coefficient ranged form 0.68 to 0.94 indicating acceptable results for the internal consistency of the questionnaire.

conclusionThis preliminary validation study proved that the Azeri version of EORTC QLQ-C30 is a valid measure of quality of life in cancer patients. However, studies with other cancer patients and stronger psychometric evaluations are recommended.

Indexed as

Quality of LifeAzerbaijanCross-Sectional StudiesFemaleFollow-Up StudiesHumansMaleMiddle AgedNeoplasmsPrognosisPsychometricsReproducibility of ResultsSurveys and QuestionnairesAzerbaijanEORTC QLQ-C30Quality of Life

Identifiers

PMID31983195
PMCPMC7294001

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.