SPM – MCQ 96 – Smoking and risk of coronary heart disease

Which one of the following statements about influence of smoking on risk of coronary heart disease (CHD) is not true?
A. Influence of smoking is independent of other risk factors for CHD
B. Influence of smoking is only additive to other risk factors for CHD
C. Influence of smoking is synergistic to other risk factors for CHD
D. Influence of smoking is directly related to number of cigarettes smoked per day

Correct answer : B. Influence of smoking is only additive to other risk factors for CHD

Smoking is an independent risk factor. It also has a synergistic effect with other risk factors. (More than just additive effect)

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