Validity of the Workers Productivity and Activity Impairment Questionnaire: Specific Health Problem (WPAI:SHP) in patients with systemic sclerosis
K Morrisroe, W Stevens, M Huq, J Sahhar, G-S Ngian, J Zochling, J Roddy, SM Proudman, M Nikpour
CLINICAL AND EXPERIMENTAL RHEUMATOLOGY | CLINICAL & EXPER RHEUMATOLOGY | Published : 2017
OBJECTIVES: To evaluate the construct validity of the Workers Productivity and Impairment Activity Index: Specific Health Problem (WPAI:SHP) in Australian systemic sclerosis (SSc) patients. METHODS: SSc patients, identified through the Australian Scleroderma Cohort Study database, completed the WPAI:SHP and a quality of life instrument (PROMIS-29) cross-sectionally. The construct validity of the WPAI:SHP was assessed by the correlations between the WPAI:SHP and a range of SSc health states. Non-parametric correlation, including Spearman's correlation (ρ), was used to test the validity of WPAI:SHP and ability to distinguish between different health states. RESULTS: A total of 476 completed qu..View full abstract
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Awarded by NHMRC Scholarship
Awarded by NHMRC Fellowship
This work was supported by Scleroderma Australia, Arthritis Australia, Actelion Australia, Bayer, CSL Biotherapies, GlaxoSmithKline Australia and Pfizer. K. Morrisroe holds an NHMRC Scholarship (APP1113954). M. Nikpour holds an NHMRC Fellowship (APP1071735).