|
KMID : 0381319980370040127
|
|
Korean Journal of Occupational Health
1998 Volume.37 No. 4 p.127 ~ p.136
|
|
|
Smoking Effect on Pulmonary Function in Simple Pneumoconiosis
|
|
오상용/Oh, Sang Yong
임현우/구정완/정치경/윤임중/Yim, Hyeon Woo/Koo, Jung Wan/Chung, Chee Kyung/Yun, Im Goung
|
|
|
Abstract
|
|
|
In order to study the effect of smoking on pneumoconiosis patients, two forced expiratory spirograms were performed 4 years apart on 35 office workers(control group) and 86 pneumoconiosis patients. Comparison of ventilatory indices such as %FEV₁, ν˙_(max50), and ν˙_(max75) were done by analyzing two forced expiratory spirograms which were measured by Autobox system(Model Cs-828 Fc, Chest Co., Japan).
1. In the initial pulmonary fuction tests there was no significant difference between smokers and ex-smokers in the control group. On the other hand smokers in the patient group showed significantly lower mean value of %FEV₁ compared to ex-smokers(p<0.05). The differences of %FEV₁, ν˙_(max50), ν˙_(max50)% and ν˙_(max75)% during 4 years also showed no significant differences between smokers and ex-smokers in the control group but were significantly lower in smokers compared to ex-smokers in pneumoconiosis patients (p<0.05) .
2. Smoking decreased the ventilatory indicies in all pneumoconiosis patients. Also when smoking was continued, decrease of the ventilatory indices was more related to progression than change of type in pneumoconiosis. But there were no significant differences between ex-smokers with non-progressive pneumoconiosis and ex-smokers with progressive pneumoconiosis.
3. When differences in ventilatory indices during 4 years were analyzed according to type or category of pnumoconiosis, comparison of smokers and ex-smokers did not show any regular tendency.
With the above considerations it is suggested that smoking has an influence on pulmonary function of the non-progressive pneumoconiosis patients, and progressive pneumoconiosis patients. Furthermore smoking has more deletrious influence on pulmonary function in progressing peumoconiosis patients than that in stability peumoconiosis patients. As a result, to prevent worsening of pulmonary fuction in pneumoconiosis patients, encouraging them to quit smoking is very important.
|
|
|
KEYWORD
|
|
|
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|
|