A double-blind comparative study of the effects of a 23-day oral contraceptive regimen with 20 μg ethinyl estradiol and 75 μg gestodene and a 21-day regimen with 30 μg ethinyl estradiol and 75 μg gestodene on hemostatic variables, lipids, and carbohydrate metabolism

In this double-blind study we compared the influence of two oral contraceptives, a 23-day regimen with 20 microg ethinyl estradiol and 75 microg gestodene (23-day 20/75) and a 21-day regimen with 30 microg ethinyl estradiol and 75 microg gestodene (21-day 30/75), on hemostatic variables, lipids, and carbohydrate metabolism. The volunteers received the preparations daily for six 28-day cycles. Hemostatic variables and lipids were measured at …