ReviewJournal of patient-reported outcomes2025
Case-mix Adjustment of Patient Reported Experience Measures (PREMs): a rapid review to inform benchmarking practices across inpatient health centers in Switzerland.
Review in Journal of patient-reported outcomes, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
0 citing papers in PubMed.
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Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
aimThe rapid review aimed to analyse current practices and recommendations regarding case-mix adjustment for benchmarking Patient Reported Experience Measures (PREMs) across inpatient health centres. Findings will inform the applicability of case-mix adjustment to PREMs in the Swiss context.
methodsWe searched PubMed, Embase, and Web of Science for studies which met the following criteria: PREMs is a main outcome, study from a European country with a national inpatient PREMs survey, study with adult patients in acute care setting, and evaluates the effect of case-mix adjustment on PREMs. Screening and appraisal were performed by an experienced epidemiologist. A narrative evidence synthesis was undertaken to address the review question, with support of tables to summarize evidence on case-mix variables and statistical methods.
resultsSeven studies (n = 301,833) were included. All supported case-mix adjustment to some extent, though variables used for case mix varied, complicating standardization. Concerns included the risk of masking quality differences. To address this, several authors advocated reporting both adjusted and unadjusted scores. Only one study included language spoken as a case mix variable-a key factor in Switzerland. DISCUSSION: Case-mix adjustment can enhance fairness in PREM-based benchmarking but must be applied cautiously. For multilingual contexts like Switzerland, local relevance of adjustment variables should be evaluated. A stepwise, transparent approach is recommended to avoid obscuring true performance differences.
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