title: A time-motion study to evaluate the impact of EMR and CPOE implementation on physician efficiency.
abstract: The objective of this research is to determine the impact of EMR and CPOE implementation on physician efficiency. A time series observational study was conducted within a hospital setting at six weeks pre-implementation, six weeks post-implementation and five months post-implementation. All 19 subjects were observed twice with one patient per observation. Physician follow-up rounding times per patient were measured. Physicians demonstrated a mean total rounding time of 18.79 minutes (pre-implementation); 16.97 minutes (six weeks post-implementation); and 12.97 minutes (five months post). Overall, the results showed a statistically significant F value = 8.26 > 1 (p = 0.0011) that signifies a reduction in physician rounding time within the hospital setting following EMR implementation. Results also showed overall standard deviations of 6.96 minutes (pre-implementation); 5.13 minutes (six weeks post); and 3.69 minutes (five months post), possibly signifying a reduction in variability and a narrower distribution of rounding times with increased similarity in physicians' rounding patterns.
authors.affiliation: Health Informatics Division, University of Minnesota, USA.
authors.forename: Amen A
authors.initials: AA
authors.lastname: Amusan
authors.forename: Scott
authors.initials: S
authors.lastname: Tongen
authors.forename: Stuart M
authors.initials: SM
authors.lastname: Speedie
authors.forename: Andrew
authors.initials: A
authors.lastname: Mellin
mesh_terms: D017598:Efficiency, Organizational; D006769:Hospitals, General; D006801:Humans; D050316:Medical Order Entry Systems; D016347:Medical Records Systems, Computerized; D008910:Minnesota; D010820:Physicians; D013996:Time and Motion Studies