Table 4.

Relationship between the number of cigarette smoked and biochemical indexes in current smokers

	Cigarette per day		Pack-years of smoking
	r	p	r	p
Hcy*		0.020	0.386	0.003
SOD**	-0.181	0.103	-0.208	0.061
Folate**	-0.067	0.619	-0.103	0.442
UA**	0.007	0.947	0.034	0.752

^*Adjustment for age, gender, blood pressure, body mass index, serum folate, vitamin B₁₂, albumin and Creatinine;

^**Adjustment for age, gender, blood pressure, body mass index, serum albumin and Creatinine.