Thai Version of Functional Rating Index

Thai Version of the Functional Rating Index for Patients With Back and Neck Pain: Cross-cultural Adaptation and Psychometric Properties Testing

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT03164824

Enrollment

247

Registered

2017-05-24

Start date

2009-04-30

Completion date

2011-04-30

Last updated

2017-05-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Questionnaire

Keywords

Questionnaire, Functional Rating Index, Cross-cultural adaptation, Psychometric properties testing

Brief summary

The purposes of this study were to conduct cross-cultural adaptation of the Functional Rating Index (FRI), to test psychometric properties of the translated questionnaire and to examine head-to-head comparisons with other questionnaires.

Detailed description

This study comprised 2 major stages: 1) Cross-cultural adaptation and 2) psychometric properties testing. Cross-cultural adaptation stage: The FRI was cross-culturally adapted to Thai following the well-accepted guideline for the process of cross-cultural adaptation of self-report measure. Psychometric properties testing stage: The patients with back or neck pain completed the questionnaires at the first visit, the second visit and at 2-week (or at discharge or when reporting 80% improvement from the first visit).

Interventions

OTHERquestionnaire

Cross-cultural adaptation stage: The FRI was cross-culturally adapted to Thai (called the Thai FRI) and the pre-final version of the Thai FRI was administered to patients. Psychometric properties testing stage: The questionnaires were administered 3 times: the first visit, the second visit and at 2 weeks. At the first visit: the patients with back pain completed the Thai FRI , Thai Roland-Morris Disability (Thai RM), Thai modified Oswestry Low Back Pain Disability (Thai modified ODQ), Thai multi-level Roland-Morris Disability (Thai multi-level RM). The patients with neck pain completed the Thai FRI and Thai Neck Disability Index. At the second visit: all patients completed the Thai FRI and Global Perceived Effect Scale (GPES). At 2 weeks: the patients completed the same questionnaires as the first visit. All patients and their treating physical therapists completed the GPES.

Study design

Observational model

OTHER

Time perspective

RETROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to 85 Years

Healthy volunteers

Inclusion criteria

The participants were eligible if they were: 1. aged 18 years or older 2. seeking physical therapy treatment for a complaint of back and/or neck pain 3. able to understand, read, speak and write Thai

Exclusion criteria

The participants who were not willing to take part in the study, unable to understand, read, speak and write Thai were excluded from this study.

Design outcomes

Primary

Measure	Time frame	Description
questionnaire scores at the first visit	20-25 minutes each time	Back pain group: questionnaire scores from the Thai FRI, Thai RM, Thai modified ODQ, Thai multi-level RM; Neck pain group: questionnaire scores from the Thai FRI and Thai Neck Disability Index

Secondary

Measure	Time frame	Description
questionnaire scores at the second visit	5 minutes each time	questionnaire scores from the Thai FRI
Global Perceived Effect Scale (GPES) at the second visit	3 minutes each time	7-point GPES
questionnaire scores at 2 weeks	20-25 minutes each time	Back pain group: questionnaire scores from the Thai FRI, Thai RM, Thai modified ODQ, Thai multi-level RM; Neck pain group: Thai FRI, Thai Neck Disability Index
Global Perceived Effect Scale (GPES) at 2 weeks	3 minutes each time	7-point GPES

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026