Obesity Index and Serum T3 and T4 Levels in Male Smokers

Abstract

Obesity index and serum T₃ and T₄ in 53 males who lived in Shiramine-village, Ishikawa prefecture were measured and classified by the amount of cigarettes smoked in a day. The results obtained were as follows. 1) Obesity index in smokers with under 20 cigarettes in a day was significantly lower than that in non smokers. However, there were no significant differences in the obesity index between smokers with over 21 cigarettes in a day and non-smokers. 2) There were no significant differences in the serum T3 or T4 levels among smokers with under 20 cigarettes in a day, smokers with over 21 cigarettes in a day and non-smokers. These reuslts suggest that there was little relationship between inhibition of increase of body weight and thyroid function in male smokers.