Fig. 1

Adjusted geometric mean and 95% confidence interval of PhIP level per melanin content in human hair (pg/mg melanin) according to tertile category of energy-adjusted PhIP intake. Data are from Iwasaki et al. [20]

LOD: limit of detection; LOQ: limit of quantification; PhIP: 2-amino-1-methyl-6-phenylimidazo [4,5-b]pyridine.