Table 4.

Components of variance, intraclass correlation coefficients (ICC), and spearman correlation coefficients for creatinine adjusted urinary OH-PAHs between samples collected at baseline, one and three years after enrollment for 100 girls in the BCERP study, CA site.

	Variance component		ICC	Spearman correlation coefficients (p-value)
	Between-child	Within-child	(95% CI)	Baseline & Year 2	Baseline & Year 4	Year 2 & Year 4
1-naphthol	0.15	1.07	0.12	0.07	0.17	0.13
			(0.04, 0.31)	(0.52)	(0.09)	(0.18)
2-naphthol	0.27	0.42	0.39	0.43	0.52	0.37
			(0.28, 0.52)	(<0.0001)	(<0.0001)	(<0.001)
2-hydroxyfluorene	0.11	0.18	0.37	0.33	0.48	0.44
			(0.26, 0.50)	(<0.001)	(<0.0001)	(<0.0001)
3-hydroxyfluorene	0.07	0.32	0.18	0.15	0.28	0.28
			(0.08, 0.34)	(0.13)	(<0.01)	(<0.01)
9-hydroxyfluorene	0.19	0.27	0.41	0.32	0.37	0.42
			(0.29, 0.53)	(<0.01)	(<0.001)	(<0.0001)
Σfluorene	0.11	0.20	0.35	0.25	0.41	0.39
			(0.24, 0.49)	(0.01)	(<0.0001)	(<0.0001)
1-hydroxyphenanthrene	0.14	0.17	0.45	0.49	0.47	0.44
			(0.34, 0.57)	(<0.0001)	(<0.0001)	(<0.0001)
2-hydroxyphenanthrene	0.11	0.22	0.33	0.34	0.19	0.50
			(0.22, 0.47)	(<0.001)	(0.07)	(<0.0001)
3-hydroxyphenanthrene	0.17	0.17	0.49	0.45	0.41	0.53
			(0.38, 0.60)	(<0.0001)	(<0.0001)	(<0.0001)
Σphenanthrene	0.13	0.15	0.47	0.43	0.37	0.50
			(0.35, 0.58)	(<0.0001)	(<0.001)	(<0.0001)
1-hydroxypyrene	0.09	0.26	0.26	0.41	0.33	0.38
			(0.16, 0.41)	(<0.0001)	(<0.001)	(<0.001)