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Table 1 Frequency distribution of demographic information of children under study

From: Blood lead concentration and its associated factors in preschool children in eastern Iran: a cross-sectional study

Variable

Mean ± SD/frequency (percentage)

Age (month)

52.37 ± 23.78

Body mass index (kg/m2)

15.52 ± 4.13

Gender

 Boy

200 (50%)

 Girl

200 (50%)

BLC

2.49 ± 2.64 (range: 0.5–29.40 μg/dL)

< 2.5 μg/dL

273 (68.3%)

2.5–5 μg/dL

95 (23.7%)

5–7.5 μg/dL

17 (4.2%)

7.5–10 μg/dL

6 (1.5%)

> 10 μg/dL

9 (2.3%)