Skip to main content

Table 2 Plasma concentration of caffeine and its main metabolites*

From: Modulation of CYP2E1 metabolic activity in a cohort of confirmed caffeine ingesting pregnant women with preterm offspring

Source

Caffeine

n = 84

Paraxanthine

n = 81

Theobromine n = 84

Theophylline

n = 84

Maternal plasma

1.18 (1.15)

0.12 (0.17)

0.46 (0.47)

0.08 (0.11)

Neonatal plasma

1.28 (1.37)

0.16 (0.20)

0.47 (0.60)

0.12 (0.12)

  1. *μg/mL, mean (SD standard deviation). In all comparisons of caffeine and metabolite concentrations, no statistical difference was found (t test) between maternal and fetal compartment