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Table 4 Statistical Analysis of Serum Iron and Some of its Biologically Active Derivatives in Jeddah Firefighters as Compared to the Normal Control Group, (mean ± S.D.).

From: Serum heavy metals and hemoglobin related compounds in Saudi Arabia firefighters

Parameter Normal Control Group n Jeddah FFs* n t-test p- value
HGB (g/dl) 15.52 ± 1.51 23 16.26 ± 1.12 27 1.9801 N.S.
COHb (%) 3.000 ± 1.27 17 5.43 ± 2.91 22 3.20993 p < 0.005
Iron (ug/dl) 86.43 ± 25.76 21 80.0 ± 28.84 28 0.821094 N.S.
TIBC (ug/dl) 324.36 ± 33.99 22 330.48 ± 50.77 27 0.4833 N.S.
Transferrin sat. (%) 26.31 ± 9.83 22 24.06 ± 9.40 27 0.8175 N.S.
Ferritin (ng/ml) 78.19 ± 34.09 20 123.26 ± 63.10 27 2.89175 p < 0.05
UIBC (ug/dl) 240.64 ± 49.45 22 253.30 ± 61.27 27 0.7830 N.S.
  1. *FFs: firefighters
  2. N.S: non-significant