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

Table 1

Characteristics of the sampled inhabitants according to age and sex.

Locations	Mean age (SD)	Number of participants		Total
		Boy	Girl
Ban Nhuong	7.90 ± 3.23	25	17	42
Hop Tien	7.35 ± 2.90	53	38	91
Keo Nang	8.95 ± 1.61	10	9	19
Phia Khao	7.81 ± 3.15	16	11	27
Others (TT, KN, BN, etc.)	7.31 ± 2.60	5	11	16
Total	7.69 ± 2.90	109	86	195