Dm. Carlisle et al., Underuse and overuse of diagnostic testing for coronary artery disease in patients presenting with new-onset chest pain, AM J MED, 106(4), 1999, pp. 391-398
Citations number
22
Categorie Soggetti
General & Internal Medicine","Medical Research General Topics
PURPOSE: To determine the extent of overuse and underuse of diagnostic test
ing for coronary artery disease and whether the socioeconomic status, healt
h insurance, gender, and race/ethnicity of a patient influences the use of
diagnostic tests.
SUBJECTS AND METHODS: We identified patients who presented with new-onset c
hest pain not due to myocardial infarction at one of five Los Angeles-area
hospital emergency departments between October 1994 and April 1996. Explici
t criteria for diagnostic testing were developed using the RAND/University
of California, Los Angeles, expert panel method. They were applied to data
collected by medical record review and patient questionnaire.
RESULTS: Of the 356 patients, 181 met necessity criteria for diagnostic car
diac testing. Of these, 40 (22%) failed to receive necessary tests. Only 7
(3%) of the 215 patients who received some form of cardiac testing had test
s that were judged to be inappropriate. Underuse was significantly more com
mon in patients with only a high school education (30% vs 15% for those wit
h some college, P = 0.02) and those without health insurance (34% vs 15% of
insured patients, P = 0.01). In a multivariate logistic regression model,
only the lack of a post-high school education was a significant predictor o
f underuse (odds ratio 2.2, 95% confidence interval 1.0 to 4.4).
CONCLUSION: Among patients with new-onset chest pain, underuse of diagnosti
c testing for coronary artery disease was much more common than overuse. Un
deruse was primarily associated with lower levels of patient education. (C)
1999 by Excerpta Medica, Inc.