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13-11-2019 | Uitgave 3/2020

Quality of Life Research 3/2020

Cross-cultural adaptation, reliability, and construct validity of the Thai version of the Patient-Reported Outcomes Measurement Information System-29 in individuals with chronic low back pain

Tijdschrift:
Quality of Life Research > Uitgave 3/2020
Auteurs:
Polake Rawang, Prawit Janwantanakul, Helena Correia, Mark P. Jensen, Rotsalai Kanlayanaphotporn
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Abstract

Purpose

To culturally adapt the Patient-Reported Outcomes Measurement Information System-29 into Thai (T-PROMIS-29) and evaluate the reliability and validity of the culturally adapted questionnaire.

Methods

The translation was performed using the Functional Assessment of Chronic Illness Therapy (FACIT) translation guidelines. Unidimensionality, internal consistency, and test–retest reliability at a 1-week interval for the translated measure were computed. Construct validity was evaluated by computing correlations between the T-PROMIS-29 scores and selected SF-36 scale scores.

Results

The study sample comprised of 241 participants with chronic low back pain. Internal consistencies were good to excellent, with Cronbach’s alphas ranging from 0.84 to 0.94. The test–retest stability of all T-PROMIS-29 domains were moderate to good, with ICCs(2,1) ranging from 0.57 to 0.74. Unidimensionality, convergent validity, and divergent construct validity were satisfactory.

Conclusions

The findings support the reliability and validity of the T-PROMIS-29 scale scores. The measure can be used to assess key quality of life domains in individuals from Thailand with chronic low back pain.

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