. 2016 Sep 1;13(9):877. doi: 10.3390/ijerph13090877

Table 4.

The geometric means of the blood mercury concentration and the odds ratios for blood mercury ≥ the HBM I value according to the total mercury and methylmercury intakes.

		Dietary Intake			Blood Mercury (μg/L) ¹		p Value ²	OR for Blood Mercury ≥ HBM I ³
		n	Mean	Range	GM	95% CI	p Value ²	OR	95% CI
Total mercury intake (μg/day)	T1	184	0.99	(0.32–1.48)	2.56	(2.35–2.78)	<0.001	1.00	-
	T2	185	2.42	(1.49–3.56)	2.84	(2.62–3.08)		1.29	(0.67–2.50)
	T3	184	7.99	(3.57–81.72)	4.16	(3.84–4.51)		3.27	(1.79–5.95)
% PTDI for inorganic mercury ⁴	T1	184	2.73	(0.79–4.18)	2.60	(2.40–2.83)	<0.001	1.00	-
	T2	185	6.77	(4.19–9.99)	3.02	(2.77–3.30)		1.53	(0.81–2.88)
	T3	184	21.77	(10.00–195.91)	3.85	(3.55–4.16)		3.29	(1.81–6.01)
Methylmercury intake from fish and shellfish (μg/day) ⁵	T1	184	0.20	(0–0.63)	2.56	(2.35–2.79)	<0.001	1.00	-
	T2	185	1.52	(0.64–2.57)	2.88	(2.65–3.14)		1.30	(0.67–2.51)
	T3	184	6.86	(2.58–78.27)	4.09	(3.79–4.42)		3.20	(1.77–5.79)
% PTDI for methylmercury ⁶	T1	184	1.41	(0–4.71)	2.56	(2.35–2.78)	<0.001	1.00	-
	T2	185	10.62	(4.71–17.99)	3.01	(2.76–3.28)		1.54	(0.81–2.94)
	T3	184	46.51	(18.00–469.06)	3.94	(3.64–4.26)		3.13	(1.72–5.67)

GM: Geometric Mean; CI: Confidence Interval; OR: Odds Ratio; PTDI: Provisional Tolerable Daily Intake; T: Tertile; ¹ Blood mercury concentration data were missing for two subjects; ² The p values were calculated by generalized linear model analysis and adjusted for sex and age; ³ The HMB I value for blood mercury is 5 μg/L, and the odds ratio was adjusted for sex, age, smoking status, and drinking status; ⁴ The PTDI for inorganic mercury is 0.5714 μg/kg bw/day; ⁵ The methylmercury intake was calculated with the following equation: $[Methylmercury (μ g / g) i n f i s h] = 0.9 \times [T o t a l m e r c u r y (μ g / g) i n f i s h] \times \frac{M_{M e H g} (215.62 g / m o l)}{M_{T H g} (200.59 g / m o l)}$ ; ⁶ The PTDI for methylmercury is 0.2286 μg/kg bw/day.