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Mean and standard deviation of umbilical cord blood lead concen- I tration, birth weight, length and head size.
| Variables | Mean | SD |
|---|---|---|
| Lead concentration (μg/dl) | 0.65 | 0.32 |
| Weight (g) | 3167.55 | 438.29 |
| Length (cm) | 49.25 | 3.18 |
| Head circumference | 34.32 | 1.48 |
