You are not currently logged in.
Access your personal account or get JSTOR access through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. 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
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
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.
Preview not available
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.
Journal of Epidemiology and Community Health (1979-) © 1983 BMJ