Smoking status in relation to serum folate and dietary vitamin intake

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
Serum²Vitamin 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).

ISSN: 1617-9625