Table 5.

Fitted models for the total mercury (THg) concentration in hair of pregnant women from Baja California Sur based on levels of exposure to tobacco and frequency of fish consumption.

Variable	Tobacco	Fish intake	Model	Median THg^* measured	Median THg fitted model
Mercury	Smoker	Never	THg = ^{1.475-0.085BMI}^**	nd^***	nd
		Once in a month	THg = e^{2.460-0.085BMI}	3.37	1.12
		Once in 2 weeks	THg = e^{3.242-0.085BMI}	1.23	2.34
		Greater than 2 times in a week	THg = e^{3.033-0.085BMI}	1.56	1.60
	Passive	Never	THg = e^{2.354-0.085BMI}	0.75	1.10
		Once in a month	THg = e^{3.340-0.085BMI}	1.53	2.53
		Once in 2 weeks	THg = e^{4.121-0.085BMI}	7.55	6.16
		Greater than 2 times in a week	THg = e^{3.912-0.085BMI}	nd	nd
	Non Smoker	Never	THg = e^{1.797-0.085BMI}	0.73	0.67
		Once in a month	THg = e^{2.783-0.085BMI}	1.38	1.19
		Once in 2 weeks	THg = e^{3.564-0.085BMI}	3.38	3.57
		Greater than 2 times in a week	THg = e^{3.355-0.085BMI}	2.14	2.13

Total mercury concentration (µgg⁻¹)

^**

Body mass index

^***

Not determined