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Measuring the influence of colleagues on a consultant team's use of breast conserving surgery

Published online by Cambridge University Press:  15 April 2010

Andrew R. Hoy
Affiliation:
National Institute for Health and Clinical Excellence
Hannah Patrick
Affiliation:
National Institute for Health and Clinical Excellence
Bruce Campbell
Affiliation:
National Institute for Health and Clinical Excellence and Peninsula College of Medicine & Dentistry
Georgios Lyratzopoulos
Affiliation:
National Institute for Health and Clinical Excellence and University of Cambridge School of Clinical Medicine

Abstract

Objectives: The aim of this study was to examine potential reasons why the use of breast conserving surgery (BCS) for breast cancer varies substantially between hospital teams in England, and in particular to examine whether colleague influence has a role in influencing BCS rates locally.

Methods: Routinely collected Hospital Episode Statistics (HES) data relating to 420 surgical teams in England who performed more than ten breast cancer operations during the financial year 2006/07 were used to identify predictors of team BCS use. Team BCS rates (as a proportion of all types of breast excision surgery) were subject to a regression analysis that incorporated, as independent variables, a range of patient, organizational, and local demographic factors, as well as the BCS rate of colleagues working alongside them in the same hospitals(s).

Results: After adjusting for the effects of other variables, BCS use by colleagues working in the same hospital(s) was a significant predictor of a team's own BCS rate (standardized b = 0.224; p < .001), denoting a typical 3 percent increase in a team's BCS rate for every 10 percent increase in the BCS rate of colleagues.

Conclusions: The practice of colleagues seems to have a measurable influence upon a surgical team's BCS usage. Guidance from HTA organizations can set national standards about the use of new techniques and innovations, but dissemination can be either slowed down or accelerated by the influence of local colleagues. A strategy of disseminating guidance through professional networks or “local champions” could be a powerful avenue for change.

Type
ASSESSMENTS
Copyright
Copyright © Cambridge University Press 2010

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