Table 3 General information and blood lead levels of the exposed subjects and control groupa
From: The relationship between blood lead levels and occupational exposure in a pregnant population
Variable | Exposed group (n = 31) | Control group (n = 268) | p value* |
|---|---|---|---|
Age (years) | 26.03 (6.17) | 24.13 (6.76) | 0.135 |
Gestational age (weeks) | 22.71 (8.06) | 24.22 (8.75) | 0.358 |
Number of pregnancies | 2.55 (1.38) | 2.23 (1.47) | 0.253 |
Body mass index (kg/m2) | 28.81 (4.79) | 27.04 (5.70) | 0.098 |
Hemoglobin (g/dL) | 12.97 (1.11) | 12.50 (1.36) | 0.065 |
Monthly income per person, USD | 165.62 (130.59) | 138.00 (146.28) | 0.316 |
Blood lead levels (μg/dL) | 4.00 (4.08) | 2.65 (1.75) | 0.002** |