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Table 2 Spearman rank correlation coefficients and 95% confidence intervals of energy-adjusted HAA intake and PhIP level per melanin content in haira

From: Dietary heterocyclic aromatic amine intake and cancer risk: epidemiological evidence from Japanese studies

  All subjects Subjects with over LOD values Subjects with over LOQ values
  CC 95% CI CC 95% CI CC 95% CI
PhIP intake 0.35 (0.11, 0.54) 0.21 (−0.05, 0.45) 0.34 (−0.07, 0.66)
MeIQ intake 0.36 (0.13, 0.56) 0.24 (−0.02, 0.47) 0.20 (−0.22, 0.56)
MeIQx intake 0.32 (0.08, 0.52) 0.24 (−0.02, 0.47) 0.17 (−0.25, 0.53)
Total HAA intake 0.34 (0.11, 0.54) 0.22 (−0.05, 0.45) 0.23 (−0.19, 0.58)
  1. CC correlation coefficient, CI confidence interval, HAA heterocyclic aromatic amine, LOD limit of detection, LOQ limit of quantification, MeIQ 2-amino-3,4-dimethylimidazo [4,5-f]quinoline, MeIQx 2-amino-3,8-dimethylimidazo [4,5-f]quinoxaline, PhIP 2-amino-1-methyl-6-phenylimidazo [4,5-b]pyridine
  2. aData are from Iwasaki et al. [20]