RT Journal Article SR Electronic T1 Development and Validation of a Short Form of the Social Role Participation Questionnaire in Patients with Ankylosing Spondylitis JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP jrheum.151013 DO 10.3899/jrheum.151013 A1 Martijn Oude Voshaar A1 Marloes van Onna A1 Simon van Genderen A1 Mart van de Laar A1 Désirée van der Heijde A1 Liesbeth Heuft A1 Anneke Spoorenberg A1 Jolanda Luime A1 Monique Gignac A1 Annlies Boonen YR 2016 UL http://www.jrheum.org/content/early/2016/05/10/jrheum.151013.abstract AB Objective The Social Role Participation Questionnaire (SRPQ) assesses the influence of health on 11 specific roles and 1 general role along 4 dimensions. In this study, a shortened version of the SRPQ (s-SRPQ) was developed in patients with ankylosing spondylitis (AS) to facilitate data collection in clinical studies and practice. Methods Using data from 246 patients with AS and population controls, the fit of each role to the different participation dimensions, the contribution of each role to the measurement precision, and the correlation between dimensions were evaluated using item response theory. Representation of the 3 participation chapters of the International Classification of Functioning, Disability, and Health was ensured. Reliability of each dimension of both versions of the SRPQ was compared by correlating scores to the Medical Outcomes Study Short Form-36 (SF-36) and the Satisfaction With Life Scale (SWLS), and by comparing ability to discriminate between patients and controls and between patients with low and high disease activity (Bath Ankylosing Spondylitis Disease Activity Index ≥ 4). Results The s-SRPQ, which assesses participation across 6 social roles along 2 dimensions (physical difficulty and satisfaction with performance), was proposed. Both dimensions of the s-SRPQ were highly reliable (r ≥ 0.86) and were shown to have construct validity as indicated by a similar pattern of correlations with the SF-36 and SWLS as the original SRPQ dimensions. Both versions discriminated well between patients and controls and between patients with high versus low disease activity (relative validity ≥ 0.72). Conclusion The s-SRPQ retains the measurement properties of the original SRPQ and seems useful for measuring the effect of AS on participation.