The evidence supports the WPAI as having test-retest reliability ( reproducibility ) over time ; convergent validity , as indicated by moderate correlations with measures of quality of life and moderate-to-strong correlations with measures of disease activity ; known-groups validity , as indicated by differences in WPAI scores between patients with active and inactive disease ; ability ( sensitivity ) to detect change , as indicated by substantial improvement in scores for patients who achieve remission , accompanied by substantial worsening of scores for patients who relapse ; and , responsiveness to treatment , with improvements in scores following treatments that reduce disease activity .
Patients with ulcerative colitis , a type of inflammatory bowel disease , report negative impacts of disease symptoms on work-related outcomes , including absenteeism and presenteeism .
As a way to better underst and the impact of this disease and its treatment on work-related outcomes , the current review examines the use of the Work Productivity and Activity Impairment Question naire ( WPAI ) , a patient-reported outcomes measure of absenteeism , presenteeism , and impairment in other activities , in studies of patients with ulcerative colitis .
This review assesses the measurement properties of the WPAI in this patient population : its reliability , construct validity , ability to detect change , and responsiveness to effective treatments .
A new validation of the Spanish Work Productivity and Activity Impairment Questionnaire-Crohn's disease version.
OBJECTIVES The Work Productivity and Activity Impairment Question naire ( WPAI ) is an instrument that measures work impairment in the setting of different diseases . One previous study validating the WPAI in Crohn 's disease ( CD ) patients suggested that its reproducibility may be unsatisfactory . This study evaluated the validity and reproducibility of the Spain Spanish version of the WPAI question naire in CD patients . METHODS In a prospect i ve study , convergent validity was tested comparing WPAI with quality of life and CD activity indices . Known-groups validity was assessed by comparing WPAI scores in CD patients with active versus inactive disease . Reproducibility of repeated tests was evaluated by comparing two WPAI measures obtained two to four weeks apart in stable patients . RESULTS One hundred eight patients were included in the various steps of the analysis . The WPAI showed adequate known groups validity and convergent validity . The reproducibility of the test and , specifically , that of the evaluation of presenteeism ( the impairment of productivity while working ) were good . CONCLUSIONS This study confirms the validity of WPAI for measuring work impairment  in CD patients . In contrast to previous studies , the test reproducibility was adequate
The evidence supports the WPAI as having test-retest reliability ( reproducibility ) over time ; convergent validity , as indicated by moderate correlations with measures of quality of life and moderate-to-strong correlations with measures of disease activity ; known-groups validity , as indicated by differences in WPAI scores between patients with active and inactive disease ; ability ( sensitivity ) to detect change , as indicated by substantial improvement in scores for patients who achieve remission , accompanied by substantial worsening of scores for patients who relapse ; and , responsiveness to treatment , with improvements in scores following treatments that reduce disease activity .
Patients with ulcerative colitis , a type of inflammatory bowel disease , report negative impacts of disease symptoms on work-related outcomes , including absenteeism and presenteeism .
As a way to better underst and the impact of this disease and its treatment on work-related outcomes , the current review examines the use of the Work Productivity and Activity Impairment Question naire ( WPAI ) , a patient-reported outcomes measure of absenteeism , presenteeism , and impairment in other activities , in studies of patients with ulcerative colitis .
This review assesses the measurement properties of the WPAI in this patient population : its reliability , construct validity , ability to detect change , and responsiveness to effective treatments .