Reliability and Validity of Turkish Version of Pediatric Quality of Life
Inventory TM 3.0 Eosinophilic Esophagitis Module for Teens and Their
Parents
Abstract
Background While the Pediatric Quality of Life Inventory™
(PedsQL™) 3.0 eosinophilic esophagitis (EoE) Module is widely used for
EoE assessment, no comprehensive transcultural adaptation has been
completed, except for one linguistic validation study in Spanish. To
assess the transcultural adaptation of the Turkish version of PedsQL™
(Tr-PedsQL™) 3.0 EoE Module for teens and parent reports through
validity and reliability tests, marking a first in the field.
Methods Teens with EoE and their parents were included in the
study. Linguistic validation, content validity (CnV) and field test for
construct validity (CsV) and reliability were completed in the
adaptation of the Tr-PedsQL™ 3.0 EoE Module. Convergent and divergent
validity (CgV and DgV) were examined for CsV by correlation analysis
between Turkish version of Pediatric EoE Symptom Scores® (Tr-PEESS) v2.0
and Tr-PedsQL TM 3.0 EoE Module scores. Reliability
was determined through internal consistency (Cronbach-α) and test-retest
reliability (intraclass correlation coefficients: ICC). Results
Thirty-three teens and their parents completed the study. CnV indexes
were > 0.8 for all items. Good correlations between
Tr-PEESS v2.0 and Tr-PedsQL TM 3.0 EoE Module Total,
Symptoms I, II and Total scores substantiated CgV, while low or absent
correlations in certain dimensions evidenced DgV. Tr-PedsQL
TM 3.0 EoE Module showed good internal consistency
(Cronbach-α: 0.61-0.90) and good to excellent test-retest reliability
(ICC: 0.713-0.935). Conclusions This study is the first to
adapt the PedsQL™ 3.0 EoE Module for another language with its validity
and reliability in assessing the health-related quality of life among
Turkish-speaking teens with EoE and their parents.