. 2008 Jun 5;116(10):1407–1410. doi: 10.1289/ehp.11354

Table 4.

Levels and associations by location and feeding in 4-year-old children.

	Location		Feeding
Measure	Flix	Other towns	Breast-feeding	Formula feeding
No.	29	23	41	9
Level [median (interquartile range)]
Total porphyrins	8.1 (3.8–13.7)	4.1 (3.0–13.7)	7.3 (3.6–13.7)	4.6 (2.5–8.4)
HCB (ng/mL)	1.34 (0.92–1.90)	0.79 (0.0–1.11)	1.04 (0.78–1.90)	1.15 (0.00–1.55)
p,p′-DDE (ng/mL)	0.77 (0.52–1.32)	0.83 (0.37–1.37)	0.81 (0.56–1.32)	0.30 (0.25–1.36)
Coefficient^a
HCB	0.11 (0.31)	0.21 (0.13)	0.22 (0.19)	0.18 (0.16)
p,p′-DDE	0.36 (0.19)	0.60 (0.23)^*	0.40 (0.18)^*	0.86 (0.32)^*

Change in total porphyrins (μmol/mol creatinine) per unit increase of organochlorine concentration in serum of 4-year-old children, obtained from separate linear regression models.

p < 0.05.