{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T23:54:15Z","timestamp":1780358055446,"version":"3.54.1"},"reference-count":82,"publisher":"Oxford University Press (OUP)","issue":"12","license":[{"start":{"date-parts":[[2022,11,23]],"date-time":"2022-11-23T00:00:00Z","timestamp":1669161600000},"content-version":"vor","delay-in-days":165,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100006484","name":"Vifor Pharma","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100006484","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000272","name":"National Institute for Health Research","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100000272","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2022,11,23]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Haemodialysis (HD) treatment causes a significant decrease in quality of life (QoL). When enrolled in a clinical trial, some patients are lost prior to follow-up because they die or they receive a kidney transplant. It is unclear how these patients are dealt with in the analysis of QoL data. There are questions surrounding the consistency of how QoL measures are used, reported and analysed.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A systematic search of electronic databases for trials measuring QoL in HD patients using any variation of the Kidney Disease Quality of Life (KDQoL) Questionnaire was conducted. The review was conducted in Covidence version 2. Quantitative analysis was conducted in Stata version 16.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>We included 61 trials in the review, of which 82% reported dropouts. The methods to account for missing data due to dropouts include imputation (7%) and complete case analysis (72%). Few trials (7%) conducted a sensitivity analysis to assess the impact of missing data on the study results. Single imputation techniques were used, but are only valid under strong assumptions regarding the type and pattern of missingness. There was inconsistency in the reporting of the KDQoL, with many articles (70%) amending the validated questionnaires or reporting only statistically significant results.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Missing data are not dealt with according to the missing data mechanism, which may lead to biased results. Inconsistency in the use of patient-reported outcome measures raises questions about the validity of these trials. Methodological issues in nephrology trials could be a contributing factor to why there are limited effective interventions to improve QoL in this patient group.<\/jats:p><\/jats:sec><jats:sec><jats:title>PROSPERO Registration<\/jats:title><jats:p>CRD42020223869<\/jats:p><\/jats:sec>","DOI":"10.1093\/ndt\/gfac170","type":"journal-article","created":{"date-parts":[[2022,5,10]],"date-time":"2022-05-10T11:18:06Z","timestamp":1652181486000},"page":"2538-2554","source":"Crossref","is-referenced-by-count":4,"title":["Measuring quality of life in trials including patients on haemodialysis: methodological issues surrounding the use of the Kidney Disease Quality of Life Questionnaire"],"prefix":"10.1093","volume":"37","author":[{"given":"Hannah M","family":"Worboys","sequence":"first","affiliation":[{"name":"Department of Health Sciences, University of Leicester , Leicester , UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nicola 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Leicester , Leicester, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"James","family":"Fotheringham","sequence":"additional","affiliation":[{"name":"School of Health and Related Research, University of Sheffield , Sheffield , UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Laura J","family":"Gray","sequence":"additional","affiliation":[{"name":"Department of Health Sciences, University of Leicester , Leicester , UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2022,6,11]]},"reference":[{"key":"2022112304500330300_bib1","article-title":"Chronic kidney","author":"Centers for Disease Control and Prevention, US Department of Health and Human Services","year":"2021"},{"key":"2022112304500330300_bib2","article-title":"The World Health Organization Quality of Life (WHOQOL)","author":"World Health 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