Evidence map›Paper›PMID 33771186›Full record

ArticleHealth and quality of life outcomes2021

Health-related quality of life in Iranian adolescents: a psychometric evaluation of the self-report form of the PedsQL 4.0 and an investigation of gender and age differences.

Habib Hadianfard, Behnaz Kiani, Mahla Azizzadeh Herozi, Fatemeh Mohajelin, John T Mitchell

Abstract readComparative Study
In one paragraph

Article in Health and quality of life outcomes, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing 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

10 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. 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

5 authors.

Habib HadianfardDepartment of Clinical Psychology, School of Education and Psychology, Shiraz University, Shiraz, Iran.
Behnaz KianiDepartment of Clinical Psychology, School of Education and Psychology, Shiraz University, Shiraz, Iran. behnazkiani1990@gmail.com.ORCID http://orcid.org/0000-0002-7953-7905
Mahla Azizzadeh Herozi *Department of Clinical Psychology, School of Education and Psychology, Shiraz University, Shiraz, Iran.
Fatemeh Mohajelin *Department of Clinical Psychology, School of Education and Psychology, Shiraz University, Shiraz, Iran.
John T MitchellDepartment of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundResearch on the psychometric properties of the Persian self-report form of the Pediatric Quality of Life Inventory Version 4.0 (PedsQL 4.0) in adolescents has several gaps (e.g., convergent validity) that limit its clinical application and therefore the cross-cultural impact of this measure. This study aimed at investigating the psychometric properties of the PedsQL 4.0 and the effects of gender and age on quality of life in Iranian adolescents.

methodThe PedsQL 4.0 was administered to 326 adolescents (12-17 years). A subsample of 115 adolescents completed the scale two weeks after the first assessment. Confirmatory Factor Analysis (CFA), correlation of the PedsQL 4.0 with the Weiss Functional Impairment Rating Scale-Self-report (WFIRS-S), and Item Response Theory (IRT) analysis were conducted to examine validity. Cronbach's alpha, McDonald's Omega, and Intra class correlation (ICC) were calculated as well to examine reliability. Gender and age effects were also evaluated.

resultsInternal consistency and test-retest reliability of the total PedsQL 4.0 scale was .92 and .87, respectively. The PedsQL 4.0 scores showed negative moderate to strong correlations with the WFIRS-S total scale. The four-factor model of the PedsQL 4.0 was not fully supported by the CFA-the root mean square error of approximation and the comparative fit index showed a mediocre and poor fit, respectively. IRT analysis indicated that all items of the PedsQL 4.0 fit with the scale and most of them showed good discrimination. The items and total scale provided more information in the lower levels of the latent trait. Males showed significantly higher scores than females in physical and emotional functioning, psychosocial health, and total scale. Adolescents with lower ages showed better quality of life than those with higher ages in all scores of the PedsQL 4.0.

conclusionThe PedsQL 4.0 showed good psychometric properties with regard to internal consistency, test-retest reliability, and convergent validity in Iranian adolescents, which supports its use in clinical settings among Persian-speaking adolescents. However, factor structure according to our CFA indicates that future work should address how to improve fit. In addition, studies that include PedsQL 4.0 should consider gender and age effects were reported.

Indexed as

AdolescentAdolescent BehaviorAge FactorsChildFactor Analysis, StatisticalFemaleHumansIranMalePsychometricsQuality of LifeReproducibility of ResultsSelf ReportSex FactorsSurveys and QuestionnairesAdolescentsConstruct validityConvergent validityInternal consistencyItem response theory (IRT)PedsQL 4.0Quality of lifeTest–retest reliability

Identifiers

PMID33771186
PMCPMC8004408

What OpenQuestion holds

Textmetadata
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.