Carboxyhemoglobin is the result of the formation of CO gas bonding with hemoglobin due to continuous exposure to CO gas. The aim of this research is to determine the difference in COHb levels in active smokers and passive smokers. The design used in this research is quantitative with experimental testing using a cross-sectional approach. Where the population used is students who are members of the Muhammadiyah University of Sidoarjo student organization with a sample size of 16 students who are active smokers and 16 students who are passive smokers. The sampling method used is purposive sampling. The results showed that all samples had COHb levels that exceeded normal values. After carrying out the Mann-Whitney non-parametric test, it can be seen that there is no significant difference in COHb levels between active smokers and passive smokers with a significance of >0.05.
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Bahriani et al. (2024) studied this question.
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