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Table 4 Frequencies of BLL ≥ 5 μg/dL in the study population

From: The relationship between blood lead levels and occupational exposure in a pregnant population

Subjects BLLs ≥ 5 μg/dL  n (%) BLLs <5 μg/dL  n (%)
Exposed group (n = 31) 7 (22.6) 24 (77.4)
Control group (n = 268) 19 (7.1) 249 (92.9)
Total (n = 299) 26 (8.7) 273 (91.3)
  1. X2 = 6.56; p = 0.010; OR = 3.822; 95%; IC (1.460 – 10.008)