BMJ family highlightsBMJ 2003; 327 doi: https://doi.org/10.1136/bmj.327.7407.125 (Published 17 July 2003) Cite this as: BMJ 2003;327:125
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Merely reducing smoking may not prevent myocardial infarction
A Danish pooled cohort study has followed more than 19 000 adults for a mean of nearly 14 years, with full information on smoking habits at five year intervals. During the course of the study, 2179 were diagnosed as having a myocardial infarction. As expected, heavy smokers (more than 15 a day) were at greater risk. However, contrary to previous assumptions, those who reported having reduced the amount of tobacco they smoked did not reduce their risk, whereas fewer myocardial infarctions than expected occurred among those who had quit. This is a new finding and implies that persuading people who are unable or …
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