Table 2.

Modelling the prevalence of pleural plaques using logistic regression

	Model 1			Model 2
	OR	95%CI	p	OR	95%CI	p
Time since first exposure (y)	1.075	1.059, 1.092	<0.001	1.067	1.051, 1.083	<0.001
Mean exposure (f/ml)	1.114	1.077, 1.153	<0.001
Cumulative exposure (10 y.f/ml)				1.036	1.023, 1.049	<0.001
Akaike Information Criterion	1228.0			1235.4
Model: Log(P/1-P)=	-3.22+0.072 TSFE (y) +0.108 mean expo (f/ml)			-2.83+0.065 TSFE (y) +0.0035 cum expo (y.f/ml)

OR: Odds Ratio by exposure unit

95%CI: 95% Confidence Intervals

p: p-value of a test of a zero coefficient

P: Prevalence of pleural plaques.