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HOME > Korean J Prev Med > Volume 21(2); 1988 > Article
Original Article Change of FVC, FEV1 after Discontinuance of Bronchodilator in Coal Workers' Pneumoconiosis Patients.
Yong Hee Cheon
Journal of Preventive Medicine and Public Health 1988;21(2):245-250
DOI: https://doi.org/
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For the evaluation of change of FVC and FEV1 after discontinuance of bronchodilator in the coal workers' pneumoconiosis patients, 17 pairs of patients were selected. They were matched by the age(+/-5 y.o.) and the type of ventilatory impairment. Pulmonary function was measured 2 times bimonthly before and after the drug discontinuance discontinued after measurement of PFT for 2 times. In case group the bronchodilator was discontinued after measurement of PFT for 2 times. In control group there was no interruption of medication. FVC, FEV1 decreased in both group as measurement progress. Simple linear regression coefficients against the month of measurement were calculated in both group and tested for parallelism between two groups. The results of test revealed that both regression coefficients were parallel. So in conclusively, discontinuance of medication of bronchodilator for coal workers pneumoconiosis patients has no effect on the decreasing rate of FVC, FEV1.

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