Table 2.

Proportion of pregnant women with PTM levels above the references.

	n	Freq. (prop. %)	(95% CI)	References
Cd
CdB ≥ 0.4 μg/L	126	77 (61.1)	52.4–69.3	[41]
CdB ≥ 0.6 μg/L	126	58 (46.0)	37.5–54.7	[32,33]
CdB ≥ 1 μg/L	126	28 (22.2)	15.6–30.0	[34]
Mn
MnH ≥ 1.2 μg/g	131	7 (4.3)	2.3–10.1	[38]
MnTn ≥ 4.14 μg/g	105	2 (1.9)	0.3–5.8	[39]
As
AsH ≥ 1 μg/g	137	0 (0)	0–1.4	[37]
Pb
PbB ≥ 3.5 μg/dL	117	6 (5.1)	2.1–10.1	[40]
PbB ≥ 2.0 μg/dL	117	23 (19.7)	13.2–27.5	[42]

Prop.: proportion.