The utility of electron microscopy in detecting asbestos fibers and particles in BALF in diffuse lung diseases

BMC Pulmonary Medicine

Table 7 The univariate and multiple regression analysis for the fraction of phosphorus of particles in bronchoalveolar lavage fluid

	Univariate regression analysis		Multiple regression analysis
Variables	Standardized beta Coefficient	P	Standardized beta Coefficient	P
History of occupational exposure to inorganic dust	0.276	0.019	0.325	0.001
Positive detection of AFs in BALF by electron microscope	0.081	0.437
Age, (yr)	−0.127	0.196
Male	0.016	0.892
Smoking history positive	0.066	0.572

AFs uncoated asbestos fibers and asbestos bodies, BALF bronchoalveolar lavage fluid

ISSN: 1471-2466