Lead Environmental Pollution and Childhood Lead Poisoning at Ban Thi Commune, Bac Kan Province, Vietnam

Table 3

Blood lead level (BLL) of children by villages (μg/dL).

Village	n	Mean ± SD	Geo. Mean	(95% CI)	No. (%) >10 µg/dL
Phia Khao	27	23.62 ± 6.66	22.71	20.98 - 26.26	27 (100.00)
Keo Nang	19	18.11 ± 5.11	17.37	15.65 - 20.58	18 (94.74)
Ban Nhuong	42	13.51 ± 4.91	12.82	11.98 - 15.04	32 (76.19)
Hop Tien	91	13.43 ± 4.76	12.66	12.44 - 14.42	68 ( 76.40)
Others	16	14.65 ± 7.88	12.75	10.45 - 18.85	10 (62.50)
Total	195	15.42 ± 6.45	14.20	14.50-16.33	155 (79.49)