Table 2.
Selected demographic, exposure, and health outcome measures (continuous variables) of 803 current and former lead workers in South Korea.
| Health outcome | Mean ± SD | Range |
|---|---|---|
| Age (years) | 40.4 ± 10.1 | 17.8–64.8 |
| BMI (kg/m2) | 23.0 ± 3.0 | 15.7–34.2 |
| Systolic blood pressure (mm Hg) | 123.2 ± 16.3 | 83.7–215.3 |
| Diastolic blood pressure (mm Hg) | 75.7 ± 12.0 | 36.0–126.7 |
| Blood lead (μg/dL) | 32.0 ± 15.0 | 4.3–85.7 |
| Tibia lead (μg Pb/g bone mineral) | 37.2 ± 40.4 | −7.4–337.6 |
| DMSA-chelatable lead (mg Pb/g creatinine)a | 0.768 ± 0.862 | 0.02–8.98 |
| Lead job duration (years) | 8.2 ± 6.5 | < 1–36.2 |
| Uric acid (mg/dL) | 4.8 ± 1.2 | 1.4–12.3 |
| BUN (mg/dL) | 14.4 ± 3.7 | 6–32.2 |
| Serum creatinine (mg/dL) | 0.90 ± 0.16 | 0.48–2.5 |
| Measured creatinine clearance (mL/min)a | 114.7 ± 33.6 | 11.8–338.9 |
| Calculated creatinine clearance (mL/min) | 94.7 ± 20.7 | 41.1–184.5 |
| NAG (μmol/hr/g creatinine) | 215.3 ± 188.5 | 13.8–2577.0 |
| RBP (μg/g creatinine) | 63.6 ± 190.6 | 5.2–4658.7 |
a
n = 787.