Responsiveness of the Spanish Pelvic Floor Distress Inventory and Pelvic Floor Impact Questionnaires Short Forms (PFDI-20 and PFIQ-7) in women with pelvic floor disorders

OBJECTIVE: To evaluate the responsiveness of the Spanish versions of Pelvic Floor Distress Inventory and Pelvic Floor Impact Questionnaire Short Forms (PFDI-20 and PFIQ-7), in order to assess symptoms and quality of life in Spanish women with pelvic floor disorders.

STUDY DESIGN: Prospective observational study to assess the responsiveness in 85 women with pelvic floor disorders. PFDI-20 and PFIQ-7 were completed before and after Physiotherapy intervention. The responsiveness was assessed with the p values using the Wilcoxon signed-rank test, the standardized response means of the change (SRM) and the effect size (ES).

RESULTS: The Spanish PFDI-20 and PFIQ-7 and the subscales demonstrated small to good responsiveness. The responsiveness was higher for PFDI-20 than for PFIQ-7. The statistic for PFDI-20 was moderate to good (ES 0.68 and SRM 0.84; p<0.0001), and small to moderate for PFIQ-7 (ES 0.48 and SRM 0.57; p<0.0001). Regarding the subscales, the responsiveness was better for Pelvic Organ Prolapse Distress Inventory (POPDI) than Pelvic Organ Prolapse Impact Questionnaire (POPIQ) (ES 0.70 and SRM 0.78; ES 0.42 and SRM 0.47 respectively; p<0.0001). Moderate responsiveness was found for Urinary Distress Inventory (UDI) and Urinary Impact Questionnaire (UIQ) (ES 0.54 and SRM 0.67; ES 0.52 and SRM 0.61 respectively; p<0.0001). Colo-Rectal-Anal Distress Inventory (CRADI) and Colo-Rectal-Anal Impact Questionnaire (CRAIQ) showed poor responsiveness, small in both (ES 0.42, SRM 0.50 and p<0.0001; ES 0.34, SRM 0.39 respectively; p<0.001). All responsiveness was significant.

CONCLUSIONS: PFDI-20 and PFIQ-7 Spanish versions showed good responsiveness to evaluate the symptoms and the quality of life in Spanish women with PFD undergoing Physiotherapy treatment.