Spirometry Comparison Of Lung Fuction Between Coalminers And Non-Coalminers

Abstract

The study was conducted to assess the lung function of coalminers and non-coalminers by using Spirometer. This was case-control study. Total 120 male coalminers and non-coalminers group, 15-40 years of age over than one year of experience. Study was conducted in the tehsil Hernai, district Ziarat, Baluchistan, Pakistan. Self-designed questionnaire and Spirometer were used. The interview was conducted on coalminers and non-coalminers and facts was documented in the questionnaire and Spirometry was implemented for coalminers and non-coalminers individually. The FVC, FEV1, FEV1/ FVC, FEF25-75% and PEFR were recognized and calculated. The frequency, percentage, Friedman’s two-way analysis was applied and (P<0.05) detected via SPSS 22 for both groups, coalminers and non-coalminers. The mean value of FVC in coalminers was (57.91%) and the mean value in non-coalminers was (66.14%), the FEV1 mean value in coalminers was (63.16%) and the mean value in non-coalminers was (73.09%). The mean value for PEFR in coalminers was (71.89%) and in non-coalminers was (84.61%). The mean value for FEV1/FVC in coalminers was (112.95%) and in non-coalminers was (113.87%), the mean value for FEF25-75% in coalminers was (92.34%) and in non-coalminers was (97.57%). This study was determined that no significant difference found between coalminers and non-coalminers. The both group’s values shows typically similar result, but the lung function of non-coal miners was better than the coalminers. The mean value of PEFR, FVC and FEV1 were clearly decreased in coal miners than non-coal miners which should be noticed and if it decreased to 50% or lesser should be hospitalized in time.