At the Society of Hospital Medicine’s annual meeting last week in Dallas, Lenny Feldman of Johns Hopkins presented the results of a neat little study. His hypothesis: physicians given information about the costs of their laboratory tests would order fewer of them.
Feldman randomized 62 tests either to be displayed per usual on the computerized order entry screen or to have the cost of the test appear next to the test’s name. Some of these were relatively inexpensive and frequently performed tests. After randomization, for example, the costs of hemoglobins ($3.46) and comprehensive metabolic panels ($15.44) were displayed, while TSHs ($24.53) and blood gases ($28.25) were not. He also randomized more expensive tests: the costs of BNPs ($49.56) were displayed, while hepatitis C genotypes ($238.62) were not.
The educational intervention was surprisingly powerful. Over the six-month study, the aggregate expenditures for each test whose costs were displayed went down by $15,692, while non-displayed tests had a mean increase of $1,718. Over the entire group of 31 tests whose costs were shown to physicians, costs fell by nearly $500,000.
Coincidentally, last week’s Archives of Surgery reported the results of an intervention aimed at decreasing lab ordering on the surgical services of Rhode Island Hospital. There, simply announcing the service’s overall expenditures on non-ICU laboratory tests for the prior week at a house staff conference led to significant savings: $55,000 over an 11-week study period.
Have we found the Holy Grail, the key to flattening the cost curve? A little physician education leads to increased awareness of the cost consequences of their choices and, voila, our economy is rescued from the brink of disaster. How nice.Continue reading…







