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A Deception Study to Avoid Recall Bias Confirms Similar Scores for 3 Validated Questionnaires in the Office or over the Phone in Women with or without Urinary Incontinence

J Urol. 2022 Aug 29:101097JU0000000000002891. doi: 10.1097/JU.0000000000002891. Online ahead of print.


INTRODUCTION/BACKGROUND: With increasing telehealth technology, confirming the validity of non-office administration of questionnaires intended for office use only is important. We studied three validated questionnaires: Urinary Distress Inventory 6-Short Form (UDI-6), International Incontinence 7- Short Form (IIQ-7), and one Quality of Life Survey (QoL) using a deception model.

METHODS/MATERIALS: Following IRB approval and power calculations, these 3 questionnaires were prospectively administered in women with and without incontinence by phone and then again in person about 2 weeks later. To avoid recall bias, participants were not informed of the study over the phone. After completing their office visit questionnaire scores, they were told about the study and invited to consent for comparison of their phone and in-person questionnaire scores. Non-English speakers and those with an active urinary tract infection, impaired mental competency, or on fluid diets were excluded.

RESULTS: From June to September 2021, 86 women, including 40 incontinent (30-85) and 46 control (30-85), with similar demographic parameters, met all study criteria. Of the 14 questions studied, only two, the UDI6: Q1 (p=0.033) and IIQ-7: Q7 (p=0.036), showed rather minimal but statistically significant differences in scores. For incontinent women, only the IIQ-7: Q7 (p=0.012) showed a significant score difference.

CONCLUSIONS: The three questionnaire scores were overall comparable when obtained over the phone or during office visit. Women with incontinence, who may otherwise be lost to follow-up or only reachable by telehealth calls, can benefit from the remote administration of these 3 questionnaires.

PMID:36036901 | DOI:10.1097/JU.0000000000002891

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