Blood Lead Levels and Associated Sociodemographic Factors among Children Aged 3 to 14 Years Living near Zinc and Lead Mines in Two Provinces in Vietnam

Table 4

Correlation of blood lead levels with age, BMI, and haemoglobin.

Parameter	Ban Thi, Bac Kan		Tan Long, Thai Nguyen
	Coefficient 95% CI	value	Coefficient 95% CI	value
Age group (years)	0.015 (-0.328, 0.360)	0.92	0.106 (-0.476, 0.688)	0.72
BMI	-0.404 (-0.801, -0.006)	0.04	-0.152 (-0.989, 0.684)	0.72
Haemoglobin (g/L)	-0.079 (-1.174, 0.016)	0.10	-0.036 (-0.190, 0.117)	0.64