Table 3

Serum folate, iron and vitamin B12 concentrations in relation to smoking status


Smokers1
Geometric Mean (95% Confidence Interval) [N]
Ex/Non smokers1
Geometric Mean (95% Confidence Interval) [N]
P-value

Serum Folate2 (nmol/L)
15.3 (13.8–16.9) [77]
17.7 (16.6–18.9) [188]
0.023
Serum Iron2 (μg/dl)
87 (76–99) [131]
80 (73–86) [326]
0.276
Serum2 Vitamin B12 (pg/ml)
354 (325–386) [77]
341 (324–360) [184]
0.495

1. Values are Geometric Mean (95% Confidence Interval) [N].

2. Analysis of covariance (gender, age and the number of fasting days were used as covariates).

Vardavas et al. Tobacco Induced Diseases 2008 4:8   doi:10.1186/1617-9625-4-8