Table 1.

The means and standard deviations for levels of four individual naphthyl-keratin adducts (1NK1, 2NK1, 1NK10, 2NK10), total keratin-1 adducts, total keratin-10 adducts, total 1-naphthyl keratin adducts, and total 2-naphthyl keratin adducts (pmole adduct/μg keratin) measured in the epidermis of the US Air Force personnel exposed to jet fuel.

Naphthyl-keratin adducts	Mean	STD	Min	Max
1NK1	0.1857a	0.1620	0.0407	1.1732
2NK1	0.1421	0.1206	0.0063	0.6192
1NK10	0.5593b	0.3171	0.0044	1.5079
2NK10	2.1083	0.8782	0.9349	6.1039
Total keratin-1 adducts (1NK1 + 2NK1)	0.3278c	0.2211	0.0901	1.4921
Total keratin-10 adducts (1NK10 + 2NK10)	2.6676	1.0581	1.1726	6.2250
Total 1-naphthyl keratin adducts (1NK1 + 1NK10)	0.7450d	0.3217	0.2746	1.6628
Total 2-naphthyl keratin adducts (2NK1 + 2NK10)	2.2504	0.9558	0.9894	6.4228

^aSignificantly different from 2NK1 (p = 0.0149)

^bSignificantly different from 2NK10 (p < 0.0001)

^cSignificantly different from total naphthyl-bound K10 (p < 0.0001)

^dSignificantly different from total 2-naphthyl keratin adduct levels (p < 0.0001)