Table 3.

Descriptive statistics of the PAH metabolites (μg/g creatinine).

PAH metabolites	N	Mean	±SD	Median	95th percentile	Range
1-OH-PHE	104	1.50	1.27	1.10	4.14	0.30–8.64
2-OH-PHE	104	0.61	0.50	0.43	1.47	0.13–3.07
3-OH-PHE	104	0.45	0.43	0.31	1.27	0.05–2.79
4-OH-PHE	104	0.17	0.14	0.13	0.48	0.02–0.70
9-OH-PHE	104	0.15	0.20	0.10	0.43	0.004–1.70
∑OH-PHE	104	2.88	2.43	2.12	7.26	0.61–16.77
PHE-1,2-diol	210	4.09	4.53	2.41	12.70	0.06–26.72
PHE-9,10-diol	210	5.93	10.57	2.70	23.88	0.05–94.15
∑PHE-diol	210	10.01	13.35	6.05	34.44	0.24–115.35
1-OH-PYR	104	0.43	0.30	0.35	0.97	0.06–1.64
DI-OH-PYR	104	0.30	0.33	0.21	0.84	0.002–2.52
∑OH-PYR	104	0.73	0.57	0.56	1.75	0.06–4.17

1-, 2-, 3-, 4-, and 9-OH-PHE, 1-, 2-, 3-, 4-, and 9-hydroxyphenanthrene; ∑OH-PHE, sum of 1-, 2-, 3-, 4-, and 9-OH-PHE; PHE-1,2-diol, phenanthrene trans-1,2-dihydrodiol; PHE-9,10-diol, phenanthrene trans-9,10-dihydrodiol; ∑PHE-diol, sum of PHE-1,2-diol and PHE-9,10-diol; 1-OH-PYR, 1-hydroxypyrene; DI-OH-PYR, sum of 1,6- and 1,8-dihydroxypyrenes; ∑OH-PYR, sum of 1-OH-PYR and DI-OH-PYR.