Birth Control Pills

1. Risk
1. Transient increase risk of breast and cervical cancer (3/30/12)
1. Group 1: Carcinogenic to humans (American Cancer Society, 2/22/12)
2. "In this study, use of oral and of injectable hormonal contraceptives was associated with a transiently increased risk of breast [OR 1.66] and cervical [OR 1.38] cancer..." "There was no significant increase in breast or cervical cancer risk among women ceasing hormonal contraceptive use ≥10 y previously"  (Plos Medicine 3/30/12)
2. Womenwho took birth control pills containing estrogens were 2.9 to 6.4 (depending onthe type of birth control pill) times more likely to have a venous thromboembolic event (blood clot) than women nottaking birth control pills or women taking birth control pills with progestogen only.
3. Hypertension (11/29/11)
4. "The rapidly increasing sexual activity of the Pill era correlates with a staggering increase in non-marital births — less than 5 percent of births in 1960 were to unmarried mothers, compared with roughly 40 percent today." (National Review, 2/23/12)