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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