Evidence map›Paper›PMID 33638644›Full record

Trial reportThe Journal of antimicrobial chemotherapy2021

A multicentre cluster-randomized clinical trial to improve antibiotic use and reduce length of stay in hospitals: comparison of three measurement and feedback methods.

M C Kallen, M E J L Hulscher, B Elzer, S E Geerlings, P D van der Linden, S Teerenstra, S Natsch, B C Opmeer, J M Prins, Impact Study Group

Abstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in The Journal of antimicrobial chemotherapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Audit and feedback: effects on professional practice.The Cochrane database of systematic reviews · 2025
    Pooled it
  2. Pooled it
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

M C KallenAmsterdam UMC, University of Amsterdam, Department of Internal Medicine, Division of Infectious Diseases, Meibergdreef 9, Amsterdam, The Netherlands.
M E J L HulscherRadboud University Medical Center, Radboud Institute for Health Sciences, Scientific Center for Quality of Healthcare (IQ healthcare), Geert Grooteplein Zuid 10, Nijmegen, The Netherlands.
B ElzerAmsterdam UMC, University of Amsterdam, Department of Internal Medicine, Division of Infectious Diseases, Meibergdreef 9, Amsterdam, The Netherlands.
S E GeerlingsAmsterdam UMC, University of Amsterdam, Department of Internal Medicine, Division of Infectious Diseases, Meibergdreef 9, Amsterdam, The Netherlands.
P D van der LindenTergooi Hospital, Department of Clinical Pharmacy, Van Riebeeckweg 212, Hilversum, The Netherlands.
S TeerenstraRadboud University Medical Center, Radboud Institute for Health Sciences, Department for Health Evidence, Group Biostatistics, Geert Grooteplein Zuid 10, Nijmegen, The Netherlands.
S NatschRadboud University Medical Center, Department of Pharmacy, Geert Grooteplein Zuid 10, Nijmegen, The Netherlands.
B C OpmeerAmsterdam UMC, University of Amsterdam, Clinical Research Unit, Meibergdreef 9, Amsterdam, The Netherlands.
J M PrinsAmsterdam UMC, University of Amsterdam, Department of Internal Medicine, Division of Infectious Diseases, Meibergdreef 9, Amsterdam, The Netherlands.
Impact Study Group

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundVarious metrics of hospital antibiotic use might assist in guiding antimicrobial stewardship (AMS).

objectivesTo compare patient outcomes in association with three methods to measure and feedback information on hospital antibiotic use when used in developing an AMS intervention.

methodsThree methods were randomly allocated to 42 clusters from 21 Dutch hospitals: (1) feedback on quantity of antibiotic use [DDD, days-of-therapy (DOT) from hospital pharmacy data], versus feedback on (2) validated, or (3) non-validated quality indicators from point prevalence studies. Using this feedback together with an implementation tool, stewardship teams systematically developed and performed improvement strategies. The hospital length of stay (LOS) was the primary outcome and secondary outcomes included DOT, ICU stay and hospital mortality. Data were collected before (February-May 2015) and after (February-May 2017) the intervention period.

resultsThe geometric mean hospital LOS decreased from 9.5 days (95% CI 8.9-10.1, 4245 patients) at baseline to 9.0 days (95% CI 8.5-9.6, 4195 patients) after intervention (P < 0.001). No differences in effect on LOS or secondary outcomes were found between methods. Feedback on quality of antibiotic use was used more often to identify improvement targets and was preferred over feedback on quantity of use. Consistent use of the implementation tool seemed to increase effectiveness of the AMS intervention.

conclusionsThe decrease in LOS versus baseline likely reflects improvement in the quality of antibiotic use with the stewardship intervention. While the outcomes with the three methods were otherwise similar, stewardship teams preferred data on the quality over the quantity of antibiotic use.

Indexed as

Anti-Bacterial AgentsAntimicrobial StewardshipFeedbackHospitalsHumansLength of StayAnti-Bacterial Agents

Identifiers

PMID33638644
PMCPMC8120330

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.