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KMID : 1100920190400040248
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Korean Journal of Family Medicine
2019 Volume.40 No. 4 p.248 ~ p.253
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Relationship between Smoking and Abdominal Aorta Calcification on Computed Tomography
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Jung Jin-Gyu
Wu Li-Tzy
Kim Jong-Sung
Kim Eung-Du
Yoon Seok-Joon
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Abstract
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Background: Cigarette smoking increases the risk of atherosclerosis, which often develops as vascular calcification on radiologic examinations. This study evaluated the relationship between smoking-related factors and incidental abdominal aorta calcification (AAC) detected by computed tomography (CT) among middle-aged and elderly men.
Methods: We assessed the abdominal CT findings of 218 men aged 40 to 81 years who underwent health check-ups. The associations between smoking factors and AAC were analyzed using logistic regression analysis to adjust for confounding variables such as age, lifestyle factors, and chronic diseases.
Results: Adjusting for confounding variables, the risk of AAC was significantly increased in association with smoking for at least 20 years (adjusted odds ratio [AOR], 5.22; 95% confidence interval [CI], 1.82?14.93), smoking 10+ pack-years (10?20 pack-years: AOR, 4.54; 95% CI, 1.07?5.68; >20 pack-years: AOR, 5.28; 95% CI, 2.10?13.31), and a history of smoking (former smoker: AOR, 2.10; 95% CI, 1.07?5.68; current smoker: AOR, 5.05; 95% CI, 2.08?12.26). In terms of the daily smoking amount, even a low smoking level increased the risk of AAC.
Conclusion: These findings suggest that smoking for 20+ years, smoking 10+ pack-years, and even a low level of smoking daily increases the likelihood of developing AAC. Clinicians should recommend that patients quit smoking and stress the importance of smoking duration when promoting health in middle-aged and elderly patients.
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KEYWORD
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Smoking, Abdominal Aorta Calcification, Atherosclerosis, Computed Tomography
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