Chirban JT, Jacobs RJ, Warren J, Prakash E, Sodomsky ME, Clarke JF, et al. The 36-Item Short Form Health Survey (SF-36) and the Work Productivity and Activity Impairment (WPAI) Questionnaire in panic disorder. Dis Manage Health Outcomes 1997; 1(3):154-164.
Erickson S, Guthrie S, Abelson J. Health status and work-related outcomes of patients with anxiety disorders and depression. Poster presentation, ISPOR 13th Annual International Meeting Toronto, Ontario, Canada, May 03, 2008.
*Reilly MC, Brown MCJ, Brabant Y, et al. Minimally important difference for WPAI:CD scores: Defining relevant impact on work productivity in active Crohn’s disease (Abst 962). Presented at the American College of Gastroenterology Annual Scientific Meeting; Philadelphia. October 12 to 17, 2007.
Reilly MC, Tanner A, Meltzer EO. Work, classroom and activity impairment instruments: validation studies in allergic rhinitis. Clinical Drug Investigations 1996; 11(5):278-288. Please note there is an error in the sample size calculations. We state (page 287) that 201 patients per treatment group would be required to detect a 5% difference in overall work impairment and 1,256 patients would be required to detect a 2% difference. The numbers should be 190 patients and 1,180 patients, respectively. For overall classroom impairment, the sample size per treatment group should be 290 patients, not 192 patients.
*Thomsen OØ, Brown M, Purcaru, Schreiber. Relationship between work productivity, daily activities and clinical endpoints in Crohn’s disease: data from Precise 2. Amer J Gastroent. 2006:101(s2). (Abstract)
Mitcheson HD, Roy JB, Gilmet G, Marshall TS, Shannon JB. Impact of solifenacin on symptom bother, health-related quality of life, work productivity, treatment satisfaction, and symptoms in patients with overactive bladder: results from VIBRANT. Poster presentation, ISPOR 14th Annual International Meeting, Orlando, FL, May 16, 2009.
Krishnarajah G, DiBonaventura M, Wagner S, Gupta S. The effect of weight changes on health-related quality of life and work impairment in patients with type 2 diabetes. Poster presentation, ISPOR 14th Annual International Meeting, Orlando, FL, May 16, 2009.
Yang M, Hammond GC, Yarlas AS, Gricar JA. Assessing work productivity impairment in premenstrual syndrome and premenstrual dysphroric disorder. Poster presentation, ISPOR 14th Annual International Meeting, Orlando, FL, May 16, 2009.