Association of Polycyclic Aromatic Hydrocarbons Urine Metabolites with Type 1 Diabetes

Table 2

Exposure distribution of urinary metabolites of polycyclic aromatic hydrocarbons corrected for urinary creatinine.

PAH metabolites	Range of PAH per gram of creatinine (μg/g cratinine)				Geometric mean (95% CI)
	Quartile 1	Quartile 2	Quartile 3	Quartile 4
1-Hydroxynaphthalene	0.86-15.85	15.86-34.17	34.18-81.94	81.95-1776.6	36.3(31.4-42)
2-Hydroxynaphthalene	0.62-13.5	13.5-27.6	27.6-66.95	66.96-763.96	29.4(25.6-33.8)
NAP metabolites	5.12-31.4	31.5-66.7	66.8-158.5	158.6-2181	72.26(63.3-82.5)

NAP metabolites; the sum of 1-hydroxynaphthalene and 2-hydroxynaphthalene (creatinine-corrected concentration (μg/g creatinine)).