Predictors of dentists' level of knowledge regarding the recommended prophylactic regimen for patients with rheumatic heart disease

Donald Sadowsky, Carol Kunzel and Martin Frankel

Social Science & Medicine, 1985, vol. 21, issue 8, 899-907

Abstract: Maintaining knowledge of clinical practices, confirming to the latest scientific information, is a major challenge for health professionals. The study aims were (1) to measure clinicians' knowledge and (2) to determine what social factors could best explain and predict those dental clinicians who are most knowledgeable about current expert recommendations for the use of appropriate antibiotic regimens for patients at risk for bacterial endocarditis. Telephone interviews were conducted with 322 New York State dentists, assigned to the study by a computer-generated randomization procedure from lists of oral surgeons, urban general practitioners and rural general practitioners. Data demonstrated extraordinary differences in level of knowledge between oral surgeons and general practitioners, while the level of knowledge between urban and rural general practice groups was quite similar. General Linear Model (GLM)-based analyses indicated that practice size, rationalization of practice, and practice setting and affiliations contributed to the explanation of knowledge level among general practitioners, when adjusted for age. R2s for each of those variables and age, ranged from a low of 0.132 to a high of 0.334. Age made a significant contribution to the explanation of knowledge level in all of the models presented, while the explanatory power of the practice structure variables varied according to respondent's locale (urban vs rural) and age (younger vs older). In order to assess the impact of these structural variables, they were dichotomized (high-low) and entered into a GLM program which accounted for age and locale. Differences in excess of 20 points (on a 0-100 knowledge scale) were sometimes noted. The findings demonstrate the importance of specifying variable relationships in explaining level of knowledge and also suggest, albeit indirectly, differences in the processes by which urban and rural and young and old general practitioners come to know.

Date: 1985
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