Psychometric testing of the Evaluation of Daily Activity Questionnaire in osteoarthritis

Hammond, A; Prior, Y; Tyson, S; Tennant, A

Abstract

Objective: The Evaluation of Daily Activity Questionnaire (EDAQ) is a patient
reported measure of activity limitations developed in Sweden. We previously revised
and tested this in rheumatic arthritic in the UK. It includes 14 domains (Eating;
Personal Care; Dressing; Bathing; Cooking; Moving Indoors; House Cleaning;
Laundry; Transfers; Moving Outdoors; Communication; Household Maintenance;
Caring; Leisure), each split in two sections: A scores activity performance without
aids, alternate methods or help; and B performance with aids or alternate methods.
Items are scored 0-3 (no difficulty to unable). Domains can be used separately.
Validity and reliability of the EDAQ in osteoarthritis (OA) were evaluated.
Materials-Methods: Participants from 18 rheumatology clinics completed
postal questionnaires including demographic questions, EDAQ (UK), Health
Assessment Questionnaire (HAQ) and SF36v2; repeating the EDAQ three weeks later.
Spearman’s correlations (rs) were used to evaluate construct validity of domains
with other measures and test-retest reliability of domain scores. Cronbach’s alpha
was used to evaluate internal consistency.
Results: 184 participated: 143 women; mean age = 64.51 years (SD 10.62);
mean OA duration = 10.43 years (SD 10.24). Most domains correlated moderately
(p < 0.001) with HAQ: rs = 0.50-0.83; SF36v2 Physical Function: rs = -0.45 to
-0.87; SF36v2 Bodily Pain: rs = 0.40-0.65; SF36v2 Vitality: rs = -0.3 to -0.58. The
Eating and Communication domains had only weak, but significant (p < 0.01),
correlations with these, as few had difficulties with these. The Caring correlations
were insignificant as activities were inapplicable for 53-83% of the participants.
Internal consistency was high in all domains (Cronbach’s alpha = 0.82-0.95). Testretest reliability of scores was good for 11 domains (rs = 0.72-0.89), moderate for
two (rs = 0.61-0.69) and insignificant for Caring (rs = 0.10).
Conclusion: The UK version of the EDAQ is a valid and reliable measure of daily
activity in people with OA (apart from the Caring domain which needs testing in
a larger sample). The EDAQ can be used in OA in clinical practice and research.

• Presentation Conference Type: Poster
• Conference Name: 12th Congress of European Forum for Research in Rehabilitation
• End Date: Sep 14, 2013
• Publication Date: Jan 1, 2013
• Deposit Date: Sep 1, 2020
• Publicly Available Date: Sep 1, 2020
• Publisher URL: http://www.ftrdergisi.com/pdf.php?&id=2723
• Related Public URLs: http://www.ftrdergisi.com/
• Additional Information: Event Type : Conference; Projects : The UK-Evaluation of Daily Activity Questionnaire (UK-EDAQ) in Musculoskeletal Conditions: psychometric testing and functional evaluation