Development and validation of self-reported line drawings of the modified Beighton score for the assessment of generalised joint hypermobility.

Cooper, Dale J and Scammell, Brigitte E and Batt, Mark E and Palmer, Debbie (2018) Development and validation of self-reported line drawings of the modified Beighton score for the assessment of generalised joint hypermobility. BMC medical research methodology, 18 (1). p. 11. ISSN 1471-2288

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Abstract

BACKGROUND

The impracticalities and comparative expense of carrying out a clinical assessment is an obstacle in many large epidemiological studies. The purpose of this study was to develop and validate a series of electronic self-reported line drawing instruments based on the modified Beighton scoring system for the assessment of self-reported generalised joint hypermobility.

METHODS

Five sets of line drawings were created to depict the 9-point Beighton score criteria. Each instrument consisted of an explanatory question whereby participants were asked to select the line drawing which best represented their joints. Fifty participants completed the self-report online instrument on two occasions, before attending a clinical assessment. A blinded expert clinical observer then assessed participants' on two occasions, using a standardised goniometry measurement protocol. Validity of the instrument was assessed by participant-observer agreement and reliability by participant repeatability and observer repeatability using unweighted Cohen's kappa (k). Validity and reliability were assessed for each item in the self-reported instrument separately, and for the sum of the total scores. An aggregate score for generalised joint hypermobility was determined based on a Beighton score of 4 or more out of 9.

RESULTS

Observer-repeatability between the two clinical assessments demonstrated perfect agreement (k 1.00; 95% CI 1.00, 1.00). Self-reported participant-repeatability was lower but it was still excellent (k 0.91; 95% CI 0.74, 1.00). The participant-observer agreement was excellent (k 0.96; 95% CI 0.87, 1.00). Validity was excellent for the self-report instrument, with a good sensitivity of 0.87 (95% CI 0.81, 0.91) and excellent specificity of 0.99 (95% CI 0.98, 1.00).

CONCLUSIONS

The self-reported instrument provides a valid and reliable assessment of the presence of generalised joint hypermobility and may have practical use in epidemiological studies.

Item Type: Article
Identification Number: https://doi.org/10.1186/s12874-017-0464-8
Dates:
DateEvent
17 January 2018Published
20 December 2017Accepted
Subjects: CAH01 - medicine and dentistry > CAH01-01 - medicine and dentistry > CAH01-01-01 - medical sciences (non-specific)
CAH02 - subjects allied to medicine > CAH02-04 - nursing and midwifery > CAH02-04-01 - nursing (non-specific)
CAH02 - subjects allied to medicine > CAH02-05 - medical sciences > CAH02-05-04 - anatomy, physiology and pathology
CAH02 - subjects allied to medicine > CAH02-06 - allied health > CAH02-06-06 - complementary and alternative medicine
CAH03 - biological and sport sciences > CAH03-01 - biosciences > CAH03-01-07 - genetics
CAH03 - biological and sport sciences > CAH03-01 - biosciences > CAH03-01-10 - others in biosciences
CAH03 - biological and sport sciences > CAH03-02 - sport and exercise sciences > CAH03-02-01 - sport and exercise sciences
CAH05 - veterinary sciences > CAH05-01 - veterinary sciences > CAH05-01-01 - veterinary medicine and dentistry
Divisions: Faculty of Health, Education and Life Sciences > Centre for Social Care, Health and Related Research (C-SHARR)
Faculty of Health, Education and Life Sciences > School of Health Sciences
Research, Innovation, Enterprise and Professional Services
Depositing User: Dale Cooper
Date Deposited: 14 Mar 2018 12:04
Last Modified: 03 Mar 2022 17:15
URI: https://www.open-access.bcu.ac.uk/id/eprint/5668

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