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Smoking is associated with urinary albumin excretion: an evaluation of premenopausal patients with type 2 diabetes mellitus.

Anan F, Masaki T, Takahashi N, Nakagawa M, Yonemochi H, Eshima N, Saikawa T, Yoshimatsu H

Department of Cardiovascular Science, Oita University, Oita, Japan. anan-f@med.oita-u.ac.jp

Cigarette smoking and an increase in urinary albumin excretion are associated with high mortality in patients with type 2 diabetes mellitus. We tested the hypothesis that the presence of a smoking habit correlates with increased urinary albumin excretion in premenopausal Japanese women with type 2 diabetes mellitus. The study consisted of 20 premenopausal Japanese patients with type 2 diabetes mellitus in the current-smokers group (age, 45 +/- 4 years, mean +/- SD). The control group consisted of 35 age-matched never-smoker patients (age, 45 +/- 5 years). Serum triglyceride levels were higher and high-density lipoprotein cholesterol levels were lower in the current-smokers group than in the never-smokers group (P < .05 and P < .01, respectively). Furthermore, fasting plasma insulin concentrations and the homeostasis model assessment index were higher in the current-smokers group than in the never-smokers group (P < .005 and P < .001, respectively). Urinary albumin excretion also was higher in the current-smokers group than in the never-smokers group (P < .0001). Multivariate logistic analysis revealed that urinary albumin excretion is independently associated with current smoking in Japanese premenopausal with type 2 diabetes mellitus (odds ratio, 1.79; 95% confidence interval, 1.08-3.87; P < .01). The results of this study show that current smoking is associated with an increased level of urinary albumin excretion, suggesting that smoking was a risk factor in the development of increased urinary albumin excretion in these patients.

Published 16 January 2007 in Metabolism, 56(2): 179-84.
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