[Research on the short-term effects of welding fumes on workers' lung function: a panel study].
Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi
; 39(6): 469-471, 2021 Jun 20.
Article
en Zh
| MEDLINE
| ID: mdl-34218571
ABSTRACT
Objective:
To explore the short-term effects of welding fumes on workers' lung function in the welding environment preliminarily, and provide reference for future research.Methods:
In October 2020, the lung function of the subjects was repeatedly measured before and after the working shift with a panel study. The paired t test was used to compare the lung function before and after the shift, and the linear mixed effects model was used to analyze the short-term changes of lung function.Results:
36 male welders were included, and the average age was (30.72±5.21) years, average employed year was (4.36±2.17) years. And the average concentration of welding fume was (1.27±0.49) mg/m(3). The forced vital capacity (FVC) , forced expiratory volume in the first second (FEV1) and peak expiratory flow (PEF) of welders after the shift were significantly lower than those before the shift (t=19.52, 48.13, 62.03, P<0.05) . After adjusting the workers' age, BMI and employed years, the changes of FVC% and FEV1% with the concentration of welding fume were statistically significant (ß=-1.02, 95%CI -1.54--0.52; ß=-1.56, 95%CI -1.95--1.16; P<0.01) . In another word, for the 1 mg/m(3) increase of welding fume in the working environment, compared with the baseline, the FVC decreases by 1.02%, and FEV1 decreases by 1.56%.Conclusion:
Short-term exposure to welding fumes in workplace can reduce the lung function of welders.Palabras clave
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Soldadura
/
Exposición Profesional
/
Contaminantes Ocupacionales del Aire
/
Enfermedades Profesionales
Idioma:
Zh
Revista:
Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi
Asunto de la revista:
MEDICINA OCUPACIONAL
Año:
2021
Tipo del documento:
Article