Vitamins E, A and B as Possible Risk Factors for Preeclampsia - under Consideration of the PROPER Study ("Prevention of Preeclampsia by High-Dose Riboflavin Supplementation").

In the course of the prospective, randomized, double-blind trial the influence of a high-dose riboflavin substitution on the risk for preeclampsia was studied in a high-risk collective 1. The present contribution evaluates supplementary data from the already published PROPER trial. The patients were from the two study centers Mérida, Venezuela, and Moshi, Tanzania, they were randomized from the 20th week of pregnancy and received either 15 mg riboflavin daily or placebo.