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Correlation Between Mobile-Application Electronic Bowel Diary and Validated Questionnaires in Women with Fecal Incontinence

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Abstract

Introduction and Hypothesis

Despite growing interest in a mobile-app bowel diary to assess fecal incontinence (FI) symptoms, data are limited regarding the correlation between mobile-app diary and questionnaire-based outcomes. The primary aim is to determine whether percentage reduction in FI episodes (FIEs)/week recorded on a mobile-app diary correlates with changes in scores of validated FI-symptom measures from baseline to 12 weeks in women with FI undergoing percutaneous tibial nerve stimulation (PTNS) versus sham.

Methods

This is a planned secondary analysis of a multicenter randomized trial in which women with FI underwent PTNS or sham. FIEs were collected using a mobile-app diary at baseline and after 12 weekly sessions. FI-symptom-validated measures included St. Mark’s, Accidental Bowel Leakage Evaluation, FI Severity Index (FISI), Colorectal Anal Distress Inventory, Colorectal Anal Impact Questionnaire, FI Quality of Life, Patient Global Impression of Improvement (PGI-I), and Patient Global Symptom Control (PGSC) rating. Spearman’s correlation coefficient (ρ) was computed between %-reduction in FIEs/week and change in questionnaire scores from baseline to 12 weeks. Significance was set at 0.005 to account for multiple comparisons.

Results

Baseline characteristics of 163 women (109 PTNS, 54 sham) include mean age 63.4±11.6, 81% white, body mass index 29.4±6.6 kg/m2, 4% previous FI surgeries, 6.6±5.5 FIEs/week, and St. Mark’s score 17.4±2.6. A significant correlation was demonstrated between %-reduction in FIEs/week and all questionnaires (p<0.005). A moderate-strength correlation (|ρ|>0.4) was observed for St. Mark’s (ρ=0.48), FISI (ρ=0.46), PGI-I (ρ=0.51), and PGSC (ρ=−0.43).

Conclusions

In women with FI randomized to PTNS versus sham, a moderate correlation was noted between FIEs measured via mobile-app diary and FI-symptom-validated questionnaire scores.

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Acknowledgements

In addition to the authors, the following members of the Pelvic Floor Disorders Network participated in the index study, Percutaneous Tibial Nerve Stimulation vs Sham Stimulation for Fecal Incontinence in Women: NeurOmodulaTion for Accidental Bowel Leakage Randomized Clinical Trial (NOTABLe): Alpert Medical School of Brown University, Providence, RI, USA—Cassandra Carberry, B. Star Hampton, Nicole Korbly, Ann Schantz Meers, Deborah L. Myers, Kyle Wohlrab, Sarashwathy K Veera, Elizabeth-Ann R Viscione; University of Texas Southwestern Medical Center, USA—Sunil Balgobin, Juanita Bonilla, Agnes Burris, Christy Hegan, David I. Rahn, Joseph Schaffer, Clifford Wai; Duke University Medical Center, Durham, NC, USA—Cindy L Amundsen, Matthew D. Barber, Yasmeen Bruton, Nortorious Coleman-Taylor, Cassandra Shaw, Amie Kawasaki, Tracy O’Dowd, Nazema Y Siddiqui, Anthony Visco, Alison C. Weidner; Kaiser Permanente–San Diego, USA—Kimberly Ferrante, Gouri Diwadkar, Christina Doan, Rebekah Dozier, Lynn Hall, Shawn Menefee, Gisselle Zazueta-Damian; RTI International, USA—Andrew Burd, Kate Burdekin, Ben Carper, Marie Gantz, Kendra Glass, Brenda Hair, Michael Ham, Pooja Iyer, James Pickett, Amanda Shaffer, Taylor Swankie, Yan Chen Tang, Dennis Wallace; University of Alabama at Birmingham, Alabama, USA—Danielle Hays, Kathy Carter, David Ellington, Ryanne Johnson, Alayne Markland, Jeannine McCormick, Holly E. Richter, Robin Willingham; UC San Diego Health, San Diego, CA, USA—Marianna Alperin, Laura Aughinbaugh, Linda Brubaker, Kyle Herrala, Emily S. Lukacz, Charles Nager, Dulce Rodriguez-Ponciano, Erika Ruppert; University of Pennsylvania, USA—Uduak Andy, Lily Arya, Yelizaveta Borodyanskaya, Lorraine Flick, Heidi Harvie, Zandra Kennedy; Magee-Women’s Hospital, Pittsburgh, PA, USA—Lindsey Baranski, Michael Bonidie, Megan Bradley, Pamela Fairchild, Judy Gruss, Beth Klump, Lauren Kunkle, Jacqueline Noel, Pamela Moalli, Halina Zyczynski.

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Authors and Affiliations

Authors

Contributions

I.M.: project development, manuscript writing and editing; J.I.-P., B.C., M.G.G.: project development, data management/analysis, manuscript writing and editing; K.Y.D., V.S., M.F.A., M.F.-R., E.K., D.M.: manuscript writing and editing.

Corresponding author

Correspondence to Isuzu Meyer.

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Source of Support

Eunice Kennedy Shriver National Institute of Child Health and Human Development grants HD069006, HD069031, HD069025, HD041261, HD069010, HD069013, HD054214, HD041267, HD054215, and NIH Office of Research on Women’s Health. IRB: IRB-300001240—Title: Univ of Pitt IRB—NeurOmodulaTion for Accidental Bowel LEakage (NOTABLE).

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Handling Editor: Tony Bazi

Editor in Chief: Maria A. Bortolini

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The abstract was presented as a poster at the 2022 AUGS/IUGA Annual Scientific Meeting in Austin, TX, USA, 14–18 June 2022

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Meyer, I., Iriondo-Perez, J., Dyer, K.Y. et al. Correlation Between Mobile-Application Electronic Bowel Diary and Validated Questionnaires in Women with Fecal Incontinence. Int Urogynecol J 35, 545–551 (2024). https://doi.org/10.1007/s00192-023-05711-1

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