Explaining Michigan

Developing an Ex post theory of a quality improvement program

Mary Dixon-Woods, Charles L. Bosk, Emma Louise Aveling, Christine A. Goeschel, Peter J. Pronovost

Research output: Contribution to journalArticle

Abstract

Context: Understanding how and why programs work-not simply whether they work-is crucial. Good theory is indispensable to advancing the science of improvement. We argue for the usefulness of ex post theorization of programs. Methods: We propose an approach, located within the broad family of theory-oriented methods, for developing ex post theories of interventional programs. We use this approach to develop an ex post theory of the Michigan Intensive Care Unit (ICU) project, which attracted international attention by successfully reducing rates of central venous catheter bloodstream infections (CVC-BSIs). The procedure used to develop the ex post theory was (1) identify program leaders' initial theory of change and learning from running the program; (2) enhance this with new information in the form of theoretical contributions from social scientists; (3) synthesize prior and new information to produce an updated theory. Findings: The Michigan project achieved its effects by (1) generating isomorphic pressures for ICUs to join the program and conform to its requirements; (2) creating a densely networked community with strong horizontal links that exerted normative pressures on members; (3) reframing CVC-BSIs as a social problem and addressing it through a professional movement combining "grassroots" features with a vertically integrating program structure; (4) using several interventions that functioned in different ways to shape a culture of commitment to doing better in practice; (5) harnessing data on infection rates as a disciplinary force; and (6) using "hard edges." Conclusions: Updating program theory in the light of experience from program implementation is essential to improving programs' generalizability and transferability, although it is not a substitute for concurrent evaluative fieldwork. Future iterations of programs based on the Michigan project, and improvement science more generally, may benefit from the updated theory present here.

Original languageEnglish (US)
Pages (from-to)167-205
Number of pages39
JournalMilbank Quarterly
Volume89
Issue number2
DOIs
StatePublished - Jun 2011

Fingerprint

Quality Improvement
Central Venous Catheters
Infection
Pressure
Social Problems
Intensive Care Units
Learning

Keywords

  • evaluation science
  • health care-acquired infections
  • Patient safety
  • program theory
  • quality improvement

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health
  • Health Policy

Cite this

Dixon-Woods, M., Bosk, C. L., Aveling, E. L., Goeschel, C. A., & Pronovost, P. J. (2011). Explaining Michigan: Developing an Ex post theory of a quality improvement program. Milbank Quarterly, 89(2), 167-205. https://doi.org/10.1111/j.1468-0009.2011.00625.x

Explaining Michigan : Developing an Ex post theory of a quality improvement program. / Dixon-Woods, Mary; Bosk, Charles L.; Aveling, Emma Louise; Goeschel, Christine A.; Pronovost, Peter J.

In: Milbank Quarterly, Vol. 89, No. 2, 06.2011, p. 167-205.

Research output: Contribution to journalArticle

Dixon-Woods, M, Bosk, CL, Aveling, EL, Goeschel, CA & Pronovost, PJ 2011, 'Explaining Michigan: Developing an Ex post theory of a quality improvement program', Milbank Quarterly, vol. 89, no. 2, pp. 167-205. https://doi.org/10.1111/j.1468-0009.2011.00625.x
Dixon-Woods, Mary ; Bosk, Charles L. ; Aveling, Emma Louise ; Goeschel, Christine A. ; Pronovost, Peter J. / Explaining Michigan : Developing an Ex post theory of a quality improvement program. In: Milbank Quarterly. 2011 ; Vol. 89, No. 2. pp. 167-205.
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