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We did pulmonary function tests on 151 elderly subjects over 60 years of age (59 male and 92 female subjects) to check changes in the pulmonary function according to the increase of age. We implemented linear regression analysis of forced vital capacity (FVC), vital capacity (VC), and forced expiratory volume in 1 second (FEV₁), which are known as having relationship with age and height. The results are as follows: 1. The average age and height subjects in male subjects were 68.4±5.43 and 64.98± 5.62㎝, and the average of FVC, FVC₁ and VC were 3.40±0.53ℓ, 2.67±0.42ℓ and 3.63± 0.57ℓ, respectively. While the average age and height subjects in female subjects were 69.72±4.80 and 151.34±5.76㎝. and the average of FVC, FEV₁ and VC were 2.10±0.35ℓ, 1.777±0.30ℓ, 2.31±0.36ℓ respectively. 2. FVC, FEV₁, and VC were decreased as age increased regardless of the sex of the subject. The correlation coefficient of FVC and FEV₁, and VC to age is -0.0370, -0.0358, and -0.0392 respectively in the case of the male elderly while -0.0366, -0.03362, and -0.0396 in the case of the female elderly. 3. FVC, FEV₁ and VC were increased as height increased regardless of the sex of the subject. The correlation coefficient of FVC and FEV₁ and VC to height is +0.04708. +0.02941. and +0.04903 respectively in the case of the male elderly while +0.03010, +0.02446. and 0.03236 in the case of the female elderly.
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