John T Wei1, Rodney Dunn, Ingrid Nygaard, Kathryn Burgio, Emily S Lukacz, Alayne Markland, Patricia A Wren, Linda Brubaker, Matthew D Barber, J Eric Jelovsek, Cathie Spino, Susie Meikle, Nancy Janz. 1. From the *University of Michigan Data Coordinating Center, Ann Arbor, MI; †University of Utah, Salt Lake City, UT; ‡University of Alabama at Birmingham, Birmingham, AL, Oakland University, Rochester, MI; §UC San Diego Health Systems, San Diego, CA; ∥Oakland University, Rochester, MI; ¶Loyola University Chicago, Chicago, IL; **Cleveland Clinic, Cleveland, OH; and ††The Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, Maryland, Washington DC.
Abstract
PURPOSE: To establish validity for the Pelvic Floor Disorders Network (PFDN) self-administered Adaptive Behavior Index (ABI) and to assess whether ABI assesses known discordance between severity of pelvic floor symptoms and self-reported bother. METHODS: In addition to the ABI questionnaire, participants in 1 of 6 Pelvic Floor Disorders Network trials completed condition-specific measures of pretreatment symptom severity (including Pelvic Floor Distress Inventory; PFDI) and health-related quality of life (Pelvic Floor Impact Questionnaire; PFIQ). The final survey was developed from an iterative process using subject and expert endorsement, factor analyses, and response distributions. Domains were created using a development cohort (n = 304 women), reliability and validity were established using a validation cohort (n = 596 women), and test-retest reliability was assessed (n = 111 women). RESULTS: Factor analyses supported an 11-item avoidance domain and a 6-item hygiene domain. Cronbach' alphas were 0.88 and 0.68, respectively. Test-retest reliability was 0.84 for both domains. Construct validity was demonstrated in correlations between the ABI domains and baseline PFDI and PFIQ (r values, 0.43-0.79 with all P values <0.0001). Moreover, the ABI accounted for 8% to 26% of unexplained variance between the symptoms severity measure and the impact on health related quality of life. After treatment, avoidance domain scores improved for urinary and fecal incontinence groups and hygiene scores improved for the fecal incontinence group. CONCLUSIONS: The ABI is a reliable and valid measure in women with pelvic floor disorders. Adaptive behaviors account in part for discordance between pelvic floor symptom severity and bother.
PURPOSE: To establish validity for the Pelvic Floor Disorders Network (PFDN) self-administered Adaptive Behavior Index (ABI) and to assess whether ABI assesses known discordance between severity of pelvic floor symptoms and self-reported bother. METHODS: In addition to the ABI questionnaire, participants in 1 of 6 Pelvic Floor Disorders Network trials completed condition-specific measures of pretreatment symptom severity (including Pelvic Floor Distress Inventory; PFDI) and health-related quality of life (Pelvic Floor Impact Questionnaire; PFIQ). The final survey was developed from an iterative process using subject and expert endorsement, factor analyses, and response distributions. Domains were created using a development cohort (n = 304 women), reliability and validity were established using a validation cohort (n = 596 women), and test-retest reliability was assessed (n = 111 women). RESULTS: Factor analyses supported an 11-item avoidance domain and a 6-item hygiene domain. Cronbach' alphas were 0.88 and 0.68, respectively. Test-retest reliability was 0.84 for both domains. Construct validity was demonstrated in correlations between the ABI domains and baseline PFDI and PFIQ (r values, 0.43-0.79 with all P values <0.0001). Moreover, the ABI accounted for 8% to 26% of unexplained variance between the symptoms severity measure and the impact on health related quality of life. After treatment, avoidance domain scores improved for urinary and fecal incontinence groups and hygiene scores improved for the fecal incontinence group. CONCLUSIONS: The ABI is a reliable and valid measure in women with pelvic floor disorders. Adaptive behaviors account in part for discordance between pelvic floor symptom severity and bother.
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