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Belgian Heart Disease Prevention Project: Comparison of Self-Reported Smoking Behaviour with Serum Thiocyanate Concentrations

Marcel Kornitzer, Anne Vanhemeldonck, Pierre Bourdoux and Guy De Backer
Journal of Epidemiology and Community Health (1979-)
Vol. 37, No. 2 (Jun., 1983), pp. 132-136
Published by: BMJ
Stable URL: http://www.jstor.org/stable/25566394
Page Count: 5
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Belgian Heart Disease Prevention Project: Comparison of Self-Reported Smoking Behaviour with Serum Thiocyanate Concentrations
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Abstract

At the end of a multifactorial cardiovascular preventive trial serum thiocyanate was measured in random samples of 1035 cases and 1087 controls. A cut-off point 0·45 mg/dl (77·6/μmol/l) gave a sensitivity of 82·1% among the cigarette smokers in the control group and a specificity of 91·0% among the non-smokers. When the intervention and control groups are compared in terms of self-reported smoking behaviour non-significant differences in mean thiocyanate concentration are observed for those who never smoked, ex-cigarette smokers, actual cigarette smokers, and in four different cigarette smoking categories. Our results fail to confirm the reported pessimistic views concerning the validity of self-reported smoking behaviour in subjects taking part in intervention trials.

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