Table 3.

Determinants of exposure to inhalable dust (mg/m³), endotoxin (EU/m³) (endotoxin unit, EU), bacteria (CFU/m³) (colony forming units, CFU), and fungi (CFU/m³) among recycling workers presented as unadjusted β-coefficients (Exp(β)) expressing the relative difference in mean exposure compared with the reference with 95% CI.

	Inhalable dusta			Endotoxina			Bacteriaa			Fungia, 25 °C			Fungia, 37 °C
	Exp(β)	95% CI	P-value	Exp(β)	95% CI	P-value	Exp(β)	95% CI	P-value	Exp(β)	95% CI	P-value	Exp(β)	95% CI	P-value
Administrative worker	Reference	Reference	Reference	Reference	Reference	Reference	Reference	Reference	Reference	Reference	Reference	Reference	Reference	Reference	Reference
Production worker	11.9	6.2;22.7	<0.001	7.6	3.7;15.4	<0.001	7.6	3.1;18.4	<0.001	82.2	22.6;298.7	<0.001	10.7	4.2;27.3	<0.001
Work taskc
Sorting	11.9	6.0;23.6	<0.001	8.3	3.9;17.5	<0.001	8.6	3.4;21.8	<0.001	137.7	39.9;475.3	<0.001	13.8	5.5;34.4	<0.001
Machine operation	10.2	4.7;22.3	<0.001	5.8	2.4;13.7	<0.001	6.4	1.8;22.6	0.004	59.3	11.7;300.4	<0.001	20.3	5.8;71.5	<0.001
Driving	11.6	5.6;23.8	<0.001	7.5	3.4;16.7	<0.001	6.4	2.3;17.7	<0.001	32.5	8.5;124.7	<0.001	5.4	2.0;14.9	0.001
Cleaning and maintenance	25.0b	7.9;78.9b	<0.001b	10.0b	2.8;35.6b	<0.001b	6.1b	0.5;69.9b	0.1b	41.6b	1.4;1235.6b	0.031b	2.3b	0.2;23.8b	0. 5b
Waste fractionc
Paper/cardboard	25.4	12.5;51.7	<0.001	31.3	15.8;62.0	<0.001	19.3	8.3;44.8	<0.001	58.1	21.0;160.3	<0.001	23.8	9.2;61.7	<0.001
Metal	22.4	10.6;47.6	<0.001	10.1	4.9;20.8	<0.001	1.3b	0.2;9.9b	0.8b	14.2b	1.2;170.8b	0.037b	1.5b	0.1;14.1b	0.7b
Plastic	10.1	4.6;22.1	<0.001	3.2	1.5;6.9	0.003	-	-	-	-	-	-	-	-	-
Biowaste	7.2	2.7;18.9	<0.001	13.2	5.3;33.1	<0.001	10.0	3.4;29.2	<0.001	62.1	16.8;229.4	<0.001	9.9	2.9;33.4	<0.001
Electronics and hazardousd	9.6	4.6;22.2	<0.001	2.5	1.2;4.9	0.012	-	-	-	-	-	-	-	-	-
Metal/plastic/glass	4.6	2.1;9.9	<0.001	9.5	4.6;19.6	<0.001	4.6	1.9;11.0	0.001	746.7	256.5;2173.8	<0.001	14.1	5.2;38.3	<0.001
Mixede	12.3	5.9;25.4	<0.001	7.7	3.8;15.6	<0.001	3.9	1.7;9.4	0.002	16.8	6.0;47.4	<0.001	3.9	1.5;10.3	0.006

^aUnadjusted model including the random effect of worker.

^bLess than 10 observations. The number of participants and samples are displayed in Table 1 and Table 2.

^cPrimary. For repeated measurements, a person can appear in two categories. We only collected microorganisms from participants working with waste fractions that have been in contact with organic material (primarily fractions that used to contain food).

^dClassified as hazardous waste, e.g. light bulbs, paint, and spray cans.

^eMore than one fraction of waste fraction, including working at a recycling station.