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Table 6 Statistical Analysis of Serum Iron and Some of its Biologically Active Derivatives in Yanbu Firefighters as Compared to Jeddah Firefighters, (mean ± S.D.).

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

Parameter Jeddah FFs* n Yanbu FFs* n t-test p- value
HGB (g/dl) 16.26 ± 1.12 27 15.66 ± 1.55 21 1.5493 N.S.
COHb (%) 5.43 ± 2.91 22 4.93 ± 2.37 21 0.6138 N.S.
Iron (ug/dl) 80.00 ± 28.84 28 87.52 ± 27.15 21 0.9396 N.S.
TIBC (ug/dl) 330.48 ± 50.77 27 283.38 ± 50.34 21 3.2003 p < 0.005
Transferrin sat. (%) 24.06 ± 9.40 27 31.31 ± 9.57 21 2.6333 p < 0.05
Ferritin (ng/ml) 123.26 ± 63.10 27 169.55 ± 103.22 14 1.78416 N.S.
UIBC (ug/dl) 253.30 ± 61.27 27 195.91 ± 50.76 21 3.4641 p < 0.005
  1. *FFs: firefighters
  2. N.S: non-significant