Variables

Non-Smokers

Smokers

t-Statistics

P-Values

Carboxy-hemoglobin (%)

7.19 ± 2.65

15.83 ± 8.53

−5.29

<0.001

Calcium (mg/dl)

9.68 ± 1.08

7.32 ± 0.74

9.83

<0.001