Health Care Financing Administration. Health Care
Financing Review, Medicare and Medicaid Statistical Supplement. 1997:150-151.
Wennberg JE. Dealing with medical practice variations: a
proposal for action. Health Aff (Millwood).1984;3:6-32.
Bass EB, Steinberg EP, Luthra R.
et al. Variation in
ophthalmic testing prior to cataract surgery: results of a national
survey of optometrists. Arch Ophthalmol.1995;113:27-31.
Daniels M, Schroeder SA. Variation among physicians in
use of laboratory tests, II: relation to clinical productivity and
outcomes of care. Med Care.1977;15:482-487.
Abbott JA, Tedeschi MA, Cheitlin MD. Graded treadmill
stress testing: patterns of physician use and abuse. West J
Casscells W, Schoenberger A, Graboys TB. Interpretation
by physicians of clinical laboratory results. N Engl J Med.1978;299:999-1001.
McDonald CJ. Medical heuristics: the silent adjudicators
of clinical practice. Ann Intern Med.1996;124:56-62.
Kanouse DE, Jacoby I. When does information change
practitioners' behavior? Int J Tech Assess Health Care.1988;4:27-33.
Davis DA, Thomson MA, Oxman AD, Haynes RB. Changing
physician performance: a systematic review of the effect of continuing
medical education strategies. JAMA.1995;274:700-705.
Sibley JC, Sackett DL, Neufeld V, Gerrard B, Rudnick KV, Fraser W. A randomized trial of continuing medical education. N Engl J Med.1982;306:511-515.
Freemantle N. Are decisions taken by health care
professionals rational? a non systematic review of experimental and
quasi experimental literature. Health Policy.1996;38:71-81.
McKinlay JB, Potter DA, Feldman HA. Non-medical
influences on medical decision-making. Soc Sci Med.1996;42:769-776.
Axt-Adam P, van der Wouden JC, van der Does E. Influencing behavior of physicians ordering laboratory tests: a
literature study. Med Care.1993;31:784-794.
Eisenberg JM. Physician utilization: the state of
research about physicians' practice patterns. Med Care.1985;23:461-483.
Grossman RM. A review of physician cost-containment
strategies for laboratory testing. Med Care.1983;21:783-802.
Moskowitz MA. Evaluating doctors' office testing
patterns. Clin Lab Med.1986;6:387-394.
Young DW. Improving laboratory usage: a review. Postgrad Med J.1988;6:283-289.
Green LW, Kreuter MW. Health Promotion Planning:
An Educational and Environmental Approach. 2nd ed. Mountain View,
Calif: Mayfield Publishing Co; 1991.
Gans KM, Jack B, Lasater TM, Lefebvre RC, McQuade W, Carleton RA. Changing physicians' attitudes, knowledge, and
self-efficacy regarding cholesterol screening and management. Am J
Murray DM, Kurth CL, Finnegan JR.
et al. Direct mail as
a prompt for follow-up care for persons at high risk for hypertension. Am J Prev Med.1988;4:331-335.
Deyo RA, Diehl AK. Cancer as a cause of back pain:
frequency, clinical presentation, and diagnostic strategies. J Gen
Oxman AD, Thomson MA, Davis DA, Haynes RB. No magic
bullets: a systematic review of 102 trials of interventions to improve
professional practice. CMAJ.1995;153:1423-1431.
Chalmers TC, Smith H, Blackburn B.
et al. A method for
assessing the quality of a randomized control trial. Control Clin
Balas EA, Austin SM, Ewigran BG, Brown GD, Mitchell JA. Methods of randomized controlled clinical trials in health services
research. Med Care.1995;33:687-699.
Fleiss JL. Statistical Methods for Rates and
Proportions. 2nd ed. New York, NY: John
Wiley & Sons Inc; 1981.
Davidoff F, Goodspeed R, Clive J. Changing test
behavior: a randomized controlled trial comparing probabilities
reasoning with cost-containment education. Med Care.1989;27:45-58.
Eisenberg JM. An educational program to modify
laboratory use by house staff. J Med Educ.1977;52:578-581.
Ratnaike S, Hunt D, Eilermann LJM, Deam D. The
investigation of chest pain: audit and intervention. Med J
Rhyne RL, Gehlbach SH. Effects of an educational
feedback strategy on physician utilization of thyroid function panels. J Fam Pract.1979;8:1003-1007.
Wong ET, McCarron MM, Shaw ST. Ordering of laboratory
tests in a teaching hospital: can it be improved? JAMA.1983;249:3076-3080.
Bates DW, Kuperman GJ, Jha A.
et al. Does the
computerized display of charges affect inpatient ancillary test
utilization? Arch Intern Med.1997;157:2501-2508.
Cohen DI, Jones P, Littenberg B, Neuhauser D. Does cost
information availability reduce physician test usage? a randomized
clinical trial with unexpected findings. Med Care.1982;20:286-292.
Forrest JB, Ritchie WP, Hudson M, Harlan JF. Cost
containment through cost awareness: a strategy that failed. Surgery.1981;90:154-158.
Gama R, Nightingale PG, Broughton PMG.
et al. Modifying
the request behavior of clinicians. J Clin Pathol.1992;45:248-249.
Grivell AR, Forgie HJ, Fraser CG, Berry MN. League
tables of biochemical costs: an attempt to modify requesting patterns. Med J Aust.1982;2:326-328.
Lyle CB, Bianchi RF, Harris JH, Wood ZL. Teaching cost
containment to house officers at Charlotte Memorial Hospital. J
Pop P, Winkens RA. A diagnostic centre for general
practitioners: results of individual feedback on diagnostic actions. J R Coll Gen Pract.1989;39:507-508.
Pugh JA, Frazier LM, DeLong E.
et al. Effect of daily
charge feedback on inpatient charges and physician knowledge and
behavior. Arch Intern Med.1989;149:426-429.
Schroeder SA, Kenders K, Cooper JK, Piemme TE. Use of
laboratory tests and pharmaceuticals: variation among physicians and
effect of cost audit on subsequent use. JAMA.1973;225:969-973.
Winkens RAG, Pop P, Grol RPTM, Kester ADM, Knottnerus JA. Effect of feedback on test ordering behavior of general
Wones RG. Failure of low-cost audits with feedback to
reduce laboratory test utilization. Med Care.1987;25:78-82.
Bree RL, Kazerooni EA, Katz SJ. Effect of mandatory
radiology consultation on inpatient imaging use: a randomized
controlled trial. JAMA.1996;276:1595-1598.
Dixon RH, Laszlo J. Utilization of clinical chemistry
services by medical house staff: an analysis. Arch Intern Med.1974;134:1064-1067.
Golden WE, Pappas AA, Lavender RC. Financial unbundling
reduces outpatient laboratory use. Arch Intern Med.1987;147:1045-1048.
Groopman DS, Powers RD. Effect of "standard order"
deletion on emergency department coagulation profile use. Ann
Sussman E, Goodwin P, Rosen H. Administrative change
and diagnostic test use: the effect of eliminating standing orders. Med Care.1984;22:569-572.
Applegate WB, Bennett MD, Chilton L, Skipper BJ, White RE. Impact of a cost-containment educational program on housestaff
ambulatory clinic charges. Med Care.1983;21:486-496.
Bareford D, Hayling A. Inappropriate use of laboratory
services: long term combined approach to modify request patterns. BMJ.1990;301:1305-1307.
Billi JE, Hejna GF, Wolf FM, Shapiro LR, Stross JK. The
effects of a cost-education program on hospital charges. J Gen
Dowling PT, Alfonsi G, Brown MI, Culpepper L. An
education program to reduce unnecessary laboratory tests by residents. Acad Med.1989;64:410-412.
Eisenberg JM, Williams SV, Garner L, Viale R, Smits H. Computer-based audit to detect and correct overutilization of
laboratory tests. Med Care.1977;15:915-921.
Fowkes FGR, Hall R, Jones JH.
et al. Trial of a
strategy for reducing the use of laboratory tests. BMJ.1986;292:883-885.
McDonald CJ. Use of a computer to detect and respond to
clinical events: its effect on clinical behavior. Ann Intern
Everett GD, deBlois CS, Chang PF, Holets T. Effect of
cost education, cost audits, and faculty chart review on the use of
laboratory services. Arch Intern Med.1983;143:942-944.
Fowkes FGR, Evans KT, Hartley G.
et al. Multicentre
trial of four strategies to reduce use of a radiological test. Lancet.1986;1:367-369.
Martin AR, Wolf MA, Thibodeau LA, Dzau V, Braunwald E. A trial of two strategies to modify the test-ordering behavior of
medical residents. N Engl J Med.1980;303:1330-1336.
Marton KI, Tul V, Sox HC. Modifying test-ordering
behavior in the outpatient medical clinic: a controlled trial of two
educational interventions. Arch Intern Med.1985;145:816-821.
Nardella A, Farrell M, Pechet L, Snyder LM. Continuous
improvement, quality control, and cost containment in clinical
laboratory testing: enhancement of physicians' laboratory-ordering
practices. Arch Pathol Lab Med.1994;118:965-968.
Novich M, Gillis L, Tauber AI. The laboratory
test justified: an effective means to reduce routine laboratory
testing. Am J Clin Pathol.1985;84:756-759.
Pozen MW, Gloger H. The impact on house officers of
educational and administrative interventions in an outpatient
department. Soc Sci Med.1976;10:491-495.
Schroeder SA, Myers LP, McPhee SJ.
et al. The failure
of physician education as a cost containment strategy: report of a
prospective controlled trial at a university hospital. JAMA.1984;252:225-230.
Spiegel JS, Shapiro MF, Berman B, Greenfield S. Changing physician test ordering in a university hospital: an
intervention of physician participation, explicit criteria, and
feedback. Arch Intern Med.1989;149:549-553.
Tierney WM, McDonald CJ, Hui SL, Martin DK. Computer
predictions of abnormal test results: effects on outpatient testing. JAMA.1988;259:1194-1198.
Tierney WM, Miller ME, McDonald CJ. The effect on test
ordering of informing physicians of the charges for outpatient
diagnostic tests. N Engl J Med.1990;322:1499-1504.
Williams SV, Eisenberg JM. A controlled trial to
decrease the unnecessary use of diagnostic tests. J Gen Intern
Wachtel TJ, O'Sullivan PO. Practice guidelines to
reduce testing in the hospital. J Gen Intern Med.1990;5:335-341.
Auleley GR, Ravaud P, Giraudeau B.
et al. Implementation of the Ottawa ankle rules in France: a multicenter
randomized controlled trial. JAMA.1997;277:1935-1939.
Berwick DM, Coltin KL. Feedback reduces test use in a
health maintenance organization. JAMA.1986;255:1450-1454.
Gortmaker SL, Bickford AF, Mathewson HO, Dumbaugh K, Tirrell PC. A successful experiment to reduce unnecessary laboratory
use in a community hospital. Med Care.1988;26:631-642.
Kroenke K, Hanley JF, Copley JB.
et al. Improving house
staff ordering of three common laboratory tests: reduction in test
ordering need not result in underutilization. Med Care.1987;25:928-935.
Mozes B, Lubin D, Modan B.
et al. Evaluation of an
intervention aimed at reducing inappropriate use of preoperative blood
coagulation tests. Arch Intern Med.1989;149:1836-1838.
Schectman JM, Elinsky EG, Pawlson LG. Effect of
education and feedback on thyroid function testing strategies of
primary care clinicians. Arch Intern Med.1991;151:2163-2166.
Stiell I, Wells G, Laupacis A.
et al. Multicentre trial
to introduce the Ottawa ankle rules for use of radiography in acute
ankle injuries. BMJ.1995;311:594-597.
Zaat JOM, van Eijk JTM, Bonte HA. Laboratory test form
design influences test ordering by general practitioners in the
Netherlands. Med Care.1992;30:189-198.
Blumenthal D, Epstein AM. Quality of health care, 6:
the role of physicians in the future of quality management. N Engl
Detsky AS, Naylor CD, O'Rourke KO, McGeer AJ, L'Abbe KA. Incorporating variations in the quality of individual randomized
trials into meta-analysis. J Clin Epidemiol.1992;45:255-265.