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Med Devices (Auckl). 2018 Oct 1;11:345-351. doi: 10.2147/MDER.S165778. eCollection 2018.

Gains in health utility associated with urinary catheter innovations.

Author information

1
University of British Columbia, International Collaboration On Repair Discoveries (ICORD), Vancouver, British Columbia, Canada, krassioukov@icord.org.
2
Division of Physical Medicine and Rehabilitation, Department of Medicine, G.F. Strong Rehabilitation Centre, Vancouver, British Columbia, Canada, krassioukov@icord.org.
3
Department of Continence Medicine, The University of Tokyo, Graduate School of Medicine, Tokyo, Japan.
4
Head of Neuro-Urology Unit, Moinhos de Vento Hospital, Porto Alegre, Brazil.
5
Department of Neurology, Medical University Innsbruck, Innsbruck, Austria.
6
Bladon Associates Ltd., Oxford, UK.
7
Incentive Partners ApS, Holte, Denmark.
8
Department of Urology, Cambridge University Hospitals NHS Trust, Cambridge, UK.

Abstract

Purpose:

To estimate gains in health utility for two different catheter features and a support service related to urinary catheters used for intermittent catheterization.

Patients and methods:

Two internet-based time trade-off (TTO) surveys were undertaken to value vignettes describing two innovative catheter features and a support service. The first TTO survey "Size and Service" included catheters with compact design and the availability of a support service for users; the second TTO survey "Phthalates" included avoidance of potentially harmful phthalates in the material of the catheters. All participants were from the UK; they traded health states against a time horizon that matched their total life expectancy. Sensitivity analyses were done to estimate the impact of extreme values on disutilities.

Results:

The participants (n=890) estimated the incremental value of 0.031 (95% CI: 0.024-0.039), 0.009 (95% CI: 0.003-0.015), and 0.037 (95% CI: 0.027-0.046), respectively, for catheters with compact design, availability of support service, and catheters not containing phthalates.

Conclusions:

Participants valued all three improvements in catheter design. To capture the impact of such design improvements on quality of life and utilities, vignette-based approaches can be a useful supplement to the conventional, generic tools.

KEYWORDS:

QALY; health-related quality of life; intermittent catheterization; time trade-off; vignette-based approach

Conflict of interest statement

Disclosure AK, MAA, NT, and YI occasionally provide expert knowledge to advisory boards at Coloplast A/S. MB is employed by Incentive Partners Aps. The authors report no other conflicts of interest in this work

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