EPO level in smokers (n = 67) 61 ± 33 (mIU/mL)

pº

Number of cigarettes smoked daily during the pregnancy

7 ± 4

p < 0.001

Number of cigarettes smoked daily before the pregnancy

17 ± 11

p < 0.01

Years of smoking

9 ± 5

NS

COHb in a. umbilicalis (%)

3.6 ± 1.1

p < 0.001

COHb in v. umbilicalis (%)

3.7 ± 1.2

p < 0.001