Table 3.

Median comparison of total mercury concentration (µgg⁻¹) in hair by number of pregnancy (GI, GII, GIII)^a, related to tobacco exposure and fish and seafood consumption.

	GI	pb	GII	p	GIII	p
Smoker
Non-smoker	1.5	0.75	1.5	0.99	1.5	0.92
Smoker	1.4		1.3		1.7
Passive exposure	1.7		1.4		1.7
Food consumption
Fish
None	0.5	0.05	0.6	0.23	0.6	0.35
Once a month	1.2		1.5		1.4
Once every 2 weeks	1.7		1.4		2.0
Two or more times a week	2.1		2.4		1.6
Seafood
None	1.3	0.14	0.8	0.54	2.3	0.38
Once a month	1.2		1.6		1.4
Once every 2 weeks	6.4		1.4		1.8
Two or more times a week	1.9		1.6		-

^aGI (primipara); GII (2 partum); GIII (3 partum)

^bKruskal–Wallis test