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Participant Perceptions of Increasing Water Intake in Polycystic Kidney Disease
Sneha Amin1, Irene Sangadi1,2, Margaret Allman-Farinelli3
1Michael Stern Laboratory for Polycystic Kidney Disease, Westmead Institute for Medical Research, The University of Sydney, Sydney, New South Wales, Australia.
Kidney International Reports
|July 18, 2025
Summary
Increasing water intake for autosomal dominant polycystic kidney disease (ADPKD) is challenging long-term due to social barriers and fluctuating motivation, despite initial habit formation. Continued adherence depends on perceived medical benefits.
Area of Science:
- Nephrology
- Urology
- Public Health
Background:
- Clinical guidelines recommend adequate hydration for autosomal dominant polycystic kidney disease (ADPKD).
- Long-term patient perceptions of increased water intake and the impact of self-efficacy tools remain underexplored in ADPKD management.
Purpose of the Study:
- To investigate long-term patient experiences with increased water intake in ADPKD.
- To explore the role of self-efficacy tools in maintaining hydration habits in ADPKD patients.
Main Methods:
- A 3-year trial involving participants with ADPKD randomized to increased water intake.
- Semistructured interviews with a subset of participants and a posttrial questionnaire for all participants in the intervention arm.
Main Results:
- Initial motivation for increased water intake waned over time, with social events posing significant barriers.
- Self-efficacy tools like water bottles, urine specific gravity monitoring, and text reminders aided adherence.
- Long-term motivation was linked to the perception of medical benefit, despite established knowledge and habits.
Conclusions:
- While habit formation for increased water intake is achievable, sustained adherence in ADPKD patients is challenged by social factors and requires ongoing motivation.
- The effectiveness of self-efficacy tools varies, with practical aids and positive reinforcement being most beneficial.
Keywords:
ADPKDautosomal dominant polycystic kidney diseaseincreased water intakelifestyle interventionpatient experiencequalitative studyMore Related Videos
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