Table 2.

Effect of alcohol, by menstrual phase on IGF-I

Menstrual cycle phaseIGF-I
No alcohol, geometric mean (95% CI)Alcohol, %Δ from no alcohol (95% CI)*
Combined phases199.8 (181.7-219.7)−9.5 (−12.5 to −6.4)
Follicular192.2 (173.0-213.4)−7.9 (−13.5 to −1.9)
Periovulatory198.7 (180.3-218.9)−9.3 (−14.2 to −4.2)
Midluteal206.7 (187.8-227.5)−11.2 (−17.0 to −4.9)
  • NOTE: Geometric mean and percentage change (Δ) in IGF-I concentrations on 30 g of alcohol/d versus no alcohol by menstrual cycle phase.

  • * Estimates are from linear mixed models.