Table 2.
Epidemiologic data and lead exposure markers in the group of workers chronically exposed to lead and in the control group
| Chronic lead-exposed group n = 52 | Control group n = 22 | ||||
|---|---|---|---|---|---|
| Mean | SD | Mean | SD | p | |
| Age (years) | 39 | 8 | 41 | 8 | 0.224 |
| Years of work | 13 | 10 | 17 | 9 | 0.128 |
| Height (cm) | 177 | 5.58 | 179 | 8.03 | 0.112 |
| Weight (kg) | 84.2 | 14.1 | 88.9 | 12.2 | 0.176 |
| Smokers (%) | 37 % | – | 32 % | – | 0.702* |
| PbB (µg/dl) | 36.6 | 8.60 | 2.22 | 1.42 | <0.001 |
| ZPP (μg/g Hb) | 4.24 | 1.82 | 2.38 | 0.61 | <0.001 |
PbB blood lead level; ZPP zinc protoporphyrin level in the blood; p value–t test, p* value–Chi-squared test