Osteoarthritis Index delivered by mobile phone (m-WOMAC) is valid, reliable, and responsive

Bellamy, Nicholas; Wilson, Christine Brown; Hendrikz, Joan; Whitehouse, Sarah L.; Patel, Bipin; Dennison, Simon; Davis, T. R. C.

doi:10.1016/j.jclinepi.2010.03.013

Cited by 83 publications

(59 citation statements)

References 30 publications

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“…A similar result has been shown using a randomized order of presentation design in a comparison of a mobile phone-based version of the WOMAC NRS 3.1 Index and a paper version (33). However, a limitation of the current study was that completion on paper or electronic media first or second was not randomized.…”

Section: Discussionsupporting

confidence: 62%

Validation of the Chinese Western Ontario and McMaster Universities Osteoarthritis Index in Patients From Mainland China With Osteoarthritis of the Knee

Symonds

Hughes

Liao

et al. 2015

Arthritis Care & Research

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Objective. To establish the reliability, validity, and sensitivity to change of the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) among Chinese subjects with osteoarthritis (OA) of the knee, living in mainland China. Methods. A multicenter, randomized, double-blind, placebo-controlled, parallel-group study was conducted for validation of the electronic personal digital assistant version of the WOMAC Numerical Rating Scale (NRS) 3.1 Index in China. A total of 287 subjects with OA of the knee were randomized to receive either meloxicam (15 mg) or placebo. Psychometric properties of the WOMAC were evaluated by estimating the reliability, validity, and sensitivity to change. Equivalence of the electronic version was also compared with the paper version. Results. Intraclass correlation coefficients for the WOMAC pain, stiffness, and physical function subscales were 0.81, 0.76, and 0.85, respectively, indicating good test-retest reliability. Similarly, internal consistency was strong (Cronbach's alpha for the 3 WOMAC subscales was 0.84, 0.86, and 0.96, respectively). Pearson's correlation coefficients for WOMAC pain and Short Form 36 health survey (SF-36) bodily pain, as well as WOMAC physical function and SF-36 physical functioning domains were >0.4, indicating convergent validity, whereas the coefficients for all 3 WOMAC domains with SF-36 mental health and mental health component scores were <0.4, indicating divergent validity. There was strong discriminant validity between healthy volunteers and OA patients. The effect sizes of change from baseline to week 12 in WOMAC subscale scores were large, demonstrating sensitivity to change. Equivalence between paper and electronic versions was very high. Conclusion. The culturally and linguistically validated Chinese version of the WOMAC NRS 3.1 for mainland China is psychometrically robust in its validity, reliability, and sensitivity to change for patients with OA of the knee.

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Section: Discussionsupporting

confidence: 62%

Validation of the Chinese Western Ontario and McMaster Universities Osteoarthritis Index in Patients From Mainland China With Osteoarthritis of the Knee

Symonds

Hughes

Liao

et al. 2015

Arthritis Care & Research

Self Cite

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“…Bellamy et al (Level of Evidence:4) tested a version of the mobile WOMAC index (m-WOMAC) with older adult patients (n=12), who regarded the system as easy to use (Very easy:11/12) and acceptable for use (Very confident in continued use: 11/12), with the index being transmitted successfully[48]. Other studies (n=62, n=12) found a high agreement between paper and mobile versions of the WOMAC index (Level of evidence: 4, 4; Correlation: 0.90+, 0.996), and found that the favorable reviews by participants and the effectiveness of the platform held across multiple phones[49,50]. …”

Section: Resultsmentioning

confidence: 99%

Older adults and mobile phones for health: A review

Joe

Demiris

2013

Journal of Biomedical Informatics

182

125

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“…Frequently discussed problems in assessing electronic PRO data include patient age and related computer literacy [10,[21][22][23][24], as well as the additional time and burden for the patient and healthcare institutions in supplying electronic devices and giving instruction on their use [22,[25][26][27][28][29]. However, this study showed that age was not a factor.…”

Section: Discussionmentioning

confidence: 81%

Patient-reported outcome assessment after total joint replacement: comparison of questionnaire completion times on paper and tablet computer

Kesterke

Egeter

Erhardt

et al. 2015

Arch Orthop Trauma Surg

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Osteoarthritis Index delivered by mobile phone (m-WOMAC) is valid, reliable, and responsive

Cited by 83 publications

References 30 publications

Validation of the Chinese Western Ontario and McMaster Universities Osteoarthritis Index in Patients From Mainland China With Osteoarthritis of the Knee

Validation of the Chinese Western Ontario and McMaster Universities Osteoarthritis Index in Patients From Mainland China With Osteoarthritis of the Knee

Older adults and mobile phones for health: A review

Patient-reported outcome assessment after total joint replacement: comparison of questionnaire completion times on paper and tablet computer

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