Table 4.

Relation between 1-HP ng/g creat and exposure, RPE use and skin exposure mitigation (SEM) index in non-smokers with one deployment as a firefighter. Multivariable regression analysis allowing for confounding.

	All (N = 59)				Deployed in first week (N = 20)
	Beta	SE	95% CI	P	Beta	SE	95% CI	P
Exposure index	−0.01	0.33	−0.67 to 0.65	0.98	−0.16	0.68	−1.61 to 1.29	0.82
RPE index	3.32	33.70	−64.30 to 70.94	0.92	137.01	95.57	−67.92 to 342.02	0.17
SEM index	−24.98	10.05	−46.14 to −4.82	0.02	−38.15	17.03	−74.66 to -1.63	0.04
Recent BBQ	4.95	16.77	−28.69 to 38.59	0.79	13.59	34.44	−60.27 to 87.45	0.70
Deployed to another fire within last 14 days	41.35	17.79	5.60 to 77.03	0.02	37.43	33.59	−34.62 to 109.48	0.28