ArticleJournal of the American Academy of Orthopaedic Surgeons. Global research & reviews2026
The Thai ICOAP-Hip: Cross-Cultural Adaptation and Validation for Assessing Intermittent and Constant Pain in Hip Osteoarthritis.
Article in Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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.
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.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe Intermittent and Constant Osteoarthritis Pain (ICOAP) questionnaire, developed by the OARSI/OMERACT initiative, is a tool for assessing pain in patients with hip and knee osteoarthritis. The aim of this study was to develop a Thai version of the ICOAP for hip through standardized translation and cross-cultural adaptation and to evaluate its reliability and validity.
methodsIn this prospective descriptive study, patients aged ≥18 years with hip osteoarthritis were enrolled. Thai Intermittent and Constant Osteoarthritis Pain for hip (ICOAP-Hip) was developed using a multilanguage translation and adaptation process. Forty-eight patients (24 men) completed the Thai ICOAP-Hip, pain subscale of the Thai Hip Osteoarthritis Outcome Score (HOOS), a Visual Analog Scale (VAS) for pain, and Thai Short Form-36 Health Survey version 2 (SF-36v2) during outpatient visits. Test-retest reliability was assessed by readministering ICOAP-Hip through telephone 48 hours later. Reliability was evaluated using the intraclass correlation coefficient (ICC) and Cronbach's alpha, while construct validity was examined using Pearson's correlation with comparator instruments.
resultsThe Thai ICOAP-Hip total score showed excellent test-retest reliability (ICC = 0.988) and high internal consistency (Cronbach's α = 0.941). Construct validity was supported by strong negative correlations with the HOOS pain subscale (r = -0.737, P < 0.001) and SF-36v2 bodily pain subscale (r = -0.737, P < 0.001), as well as a strong positive correlation with VAS pain (r = 0.796, P < 0.001).
conclusionThe Thai ICOAP-Hip is a reliable and valid instrument for evaluating pain in Thai patients with hip osteoarthritis.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.