Food intake survey of kindergarten children in Korea: Part 3 cadmium and lead burden

Table 2 Cd and Pb levels in urine by kindergarten (KG)

	No.	Creatinine (g/L)¹	Sp.Gr.^a,b	Cadmium in urine			Lead in urine
	No.	Creatinine (g/L)¹	Sp.Gr.^a,b	OB (μg/L)^c	CR (μg/g)^c	SG (μg/L)^c	OB (μg/L)^c	CR (μg/g)^c	SG (μg/L)^c
Total	108	0.78 ± 0.33	21.1 ± 7.2	0.91 (2.07)	1.30 (1.84)	0.74 (1.85)	1.64 (2.05)	2.33 (1.94)	1.33 (1.90)
A. KG 1	33	0.76 ± 0.35	20.1 ± 7.1	1.74 (1.96)	2.54 (1.68)	1.47 (1.74)	1.13 (1.73)	1.66 (1.65)	0.96 (1.59)
B. KG 2	37	0.73 ± 0.29	20.9 ± 7.4	0.66 (1.73)	0.99 (1.38)	0.54 (1.36)	1.97 (1.98)	2.95 (2.08)	1.62 (1.92)
C. KG 3	18	0.88 ± 0.32	22.0 ± 6.4	0.83 (1.65)	1.01 (1.49)	0.63 (1.42)	2.11 (1.81)	2.55 (1.58)	1.60 (1.72)
D. KG 4	20	0.81 ± 0.37	22.4 ± 8.0	0.63 (1.77)	0.88 (1.48)	0.48 (1.43)	1.72 (2.50)	2.41 (2.04)	1.33 (2.16)
Comparison^d		A ≒ B ≒ C ≒ D	A ≒ B ≒ C ≒ D	A > B ≒ C ≒ D	A > B ≒ C ≒ D	A > B ≒ C ≒ D	A ≒ B ≒ C ≒ D	B ≒ C ≒ D > A	A ≒ B ≒ C ≒ D

^aAM ± ASD
^bSp.Gr. = (Specific gravity − 1.000) × 1000
^cAs observed (OB), as corrected for creatinine concentration (CR), or after correction for a urine specific gravity of 1.016 (SG). GM (GSD) values are shown
^dNotes are as under Table 1

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