caa a22 4500 397500009 CHVBK 20180308164530.0 cr unu---uuuuu 161202e199509 xx s 000 0 eng 10.1093/imammb/12.3-4.225 doi (NATIONALLICENCE)oxford-10.1093/imammb/12.3-4.225 Performance comparison in geriatric medicine: A study in one department [Elektronische Daten] [Mark Cottee, Peter H. Millard] It is now commonplace to base performance comparison on productivity measurements. Yates recommended the use of Barber-Johnson diagrams to compare activity in acute specialties, but he did not commend their use in specialties with large numbers of beds and long lengths of stay. Performance comparison in geriatric medicine is difficult because factors such as the case mix and the discharge destination influence throughput. We used two mathematical models to compare the performance of five consultants in the same department. A Monte Carlo simulation based on historic-frequency tables indicated that the mean annual admissions to forty beds by the five consultants would vary between 592 and 748 admissions per year and a two-sample t-test indicated that only two of the consultants were the same, whereas the two-compartment flow model based on the average bed occupancy predicted the annual admissions to be between 650 and 856 and it indicated that the two consultants treated longer-stay patients differently. Thus the models identified differences in consultant performance which were not shown by simple statistics. The information required to decide if the variation in consultant performance is due to clinical or other differences is not yet routinely available. However, the benefit of modelling is that it identifies areas of variation and facilitates exploratory discussion. © 1995 Oxford University Press Part 2: Provider Issues nationallicence geriatric medicine nationallicence performance comparison nationallicence mathematical models nationallicence bed-occupancy modelling nationallicence Cottee Mark Division of Geriatric Medicine, St George's Hospital Medical School, Cranmer Terrace, London SW17 ORE, UK aut Millard Peter H. Division of Geriatric Medicine, St George's Hospital Medical School, Cranmer Terrace, London SW17 ORE, UK aut Mathematical Medicine and Biology: A Journal of the IMA Oxford University Press 12/3-4(1995-09), 225-234 1477-8599 12:3-4<225 1995 12 imammb https://doi.org/10.1093/imammb/12.3-4.225 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/imammb/12.3-4.225 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Cottee Mark Division of Geriatric Medicine, St George's Hospital Medical School, Cranmer Terrace, London SW17 ORE, UK aut NATIONALLICENCE 700 1- Millard Peter H. Division of Geriatric Medicine, St George's Hospital Medical School, Cranmer Terrace, London SW17 ORE, UK aut NATIONALLICENCE 773 0- Mathematical Medicine and Biology: A Journal of the IMA Oxford University Press 12/3-4(1995-09), 225-234 1477-8599 12:3-4<225 1995 12 imammb Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford