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[Early change of pulmonary ventilation in new coal miners].

Abstract

OBJECTIVE

To study the early effects of coal dust on lung function in new underground coal miners.

METHODS

Two hundred and eighty-seven male miners were selected from new employees at the Xuzhou Mining Group Company as study group, and 132 male students at a mining technical school were selected as control. Data collection included: individual demographic parameters, family medical history, occupational history, and smoking history, measurement of dust concentrations in work areas, and lung function tests. This prospective cohort study took place over 3 years during which time total dust and respirable dust concentrations in the new coal miners' work areas were measured twice each month. For both miner and student groups, FVC and FEV(1) were tested initially before dust exposure, and then 15 times over the 3 years.

RESULTS

The average total dust and respirable dust concentrations in the miners' work areas were 23.8 mg/m(3) and 8.9 mg/m(3) respectively, which greatly exceeded national health criteria. During the first year of dust exposure, the miners's average FVC was higher than that of the controls (5.19 L vs 4.92 L, P < 0.01). During the 2nd and 3rd year the difference in average FVC between miners and control group was not significant (5.14 L vs 5.12 L, P > 0.05). Before dust exposure, the miners' FEV(1) was significantly higher than that of the control group (4.48 L vs 4.28 L). In the miners group, FEV(1) declined rapidly during the first year following dust exposure (from 4.48 L to 4.25 L), and in the 2nd and the 3rd year the average FEV(1) of the miners was significantly lower than that of controls (4.34 L vs 4.56 L, P < 0.01), although there were some fluctuations during the follow-up period. Overall, the average FEV(1) of miners group showed a significant decline during the study. There were significant correlations between FVC or FEV(1) and age, height, weight, and smoking. The three-year total loss of FVC and FEV(1) in smoking miners (154 ml, 184 ml) were greater than in non-smoking miners (83 ml, 91 ml).

CONCLUSION

There are apparent effects of coal dust on lung function in new underground coal miners, with FEV(1) being more impacted than FVC. Smoking may aggravate the effect of dust exposure on reducing lung function.

Authors+Show Affiliations

Department of Occupational Health and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province 430030, China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

English Abstract
Journal Article
Research Support, U.S. Gov't, P.H.S.

Language

chi

PubMed ID

16105450

Citation

Peng, Kai-Liang, et al. "[Early Change of Pulmonary Ventilation in New Coal Miners]." Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi = Zhonghua Laodong Weisheng Zhiyebing Zazhi = Chinese Journal of Industrial Hygiene and Occupational Diseases, vol. 23, no. 2, 2005, pp. 105-8.
Peng KL, Wang ML, Du QG, et al. [Early change of pulmonary ventilation in new coal miners]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi. 2005;23(2):105-8.
Peng, K. L., Wang, M. L., Du, Q. G., Li, Y. D., Attfield, M. D., Han, G. H., ... Wu, Z. E. (2005). [Early change of pulmonary ventilation in new coal miners]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi = Zhonghua Laodong Weisheng Zhiyebing Zazhi = Chinese Journal of Industrial Hygiene and Occupational Diseases, 23(2), pp. 105-8.
Peng KL, et al. [Early Change of Pulmonary Ventilation in New Coal Miners]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi. 2005;23(2):105-8. PubMed PMID: 16105450.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Early change of pulmonary ventilation in new coal miners]. AU - Peng,Kai-Liang, AU - Wang,Mei-Lin, AU - Du,Qing-Guo, AU - Li,Ya-Dong, AU - Attfield,Michael D, AU - Han,Gui-Hai, AU - Petsonk,Edward L, AU - Li,Shao-Kui, AU - Wu,Zhi-en, PY - 2005/8/18/pubmed PY - 2007/10/10/medline PY - 2005/8/18/entrez SP - 105 EP - 8 JF - Zhonghua lao dong wei sheng zhi ye bing za zhi = Zhonghua laodong weisheng zhiyebing zazhi = Chinese journal of industrial hygiene and occupational diseases JO - Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi VL - 23 IS - 2 N2 - OBJECTIVE: To study the early effects of coal dust on lung function in new underground coal miners. METHODS: Two hundred and eighty-seven male miners were selected from new employees at the Xuzhou Mining Group Company as study group, and 132 male students at a mining technical school were selected as control. Data collection included: individual demographic parameters, family medical history, occupational history, and smoking history, measurement of dust concentrations in work areas, and lung function tests. This prospective cohort study took place over 3 years during which time total dust and respirable dust concentrations in the new coal miners' work areas were measured twice each month. For both miner and student groups, FVC and FEV(1) were tested initially before dust exposure, and then 15 times over the 3 years. RESULTS: The average total dust and respirable dust concentrations in the miners' work areas were 23.8 mg/m(3) and 8.9 mg/m(3) respectively, which greatly exceeded national health criteria. During the first year of dust exposure, the miners's average FVC was higher than that of the controls (5.19 L vs 4.92 L, P < 0.01). During the 2nd and 3rd year the difference in average FVC between miners and control group was not significant (5.14 L vs 5.12 L, P > 0.05). Before dust exposure, the miners' FEV(1) was significantly higher than that of the control group (4.48 L vs 4.28 L). In the miners group, FEV(1) declined rapidly during the first year following dust exposure (from 4.48 L to 4.25 L), and in the 2nd and the 3rd year the average FEV(1) of the miners was significantly lower than that of controls (4.34 L vs 4.56 L, P < 0.01), although there were some fluctuations during the follow-up period. Overall, the average FEV(1) of miners group showed a significant decline during the study. There were significant correlations between FVC or FEV(1) and age, height, weight, and smoking. The three-year total loss of FVC and FEV(1) in smoking miners (154 ml, 184 ml) were greater than in non-smoking miners (83 ml, 91 ml). CONCLUSION: There are apparent effects of coal dust on lung function in new underground coal miners, with FEV(1) being more impacted than FVC. Smoking may aggravate the effect of dust exposure on reducing lung function. SN - 1001-9391 UR - https://www.unboundmedicine.com/medline/citation/16105450/[Early_change_of_pulmonary_ventilation_in_new_coal_miners]_ L2 - https://medlineplus.gov/occupationalhealth.html DB - PRIME DP - Unbound Medicine ER -