Oral Contraceptive Use as a Risk Factor for Premenopausal Breast Cancer: A Meta-analysis

Breast cancer is the leading cause of cancer in women worldwide and the most common cause of cancer death in US women aged 20 to 59 years. Each year in the United States, approximately 211,000 women develop breast cancer and more than 47,000 (20%) do so before the age of 50 years. Approximately 2 in 15 American women are expected to develop breast cancer in their lifetime, and nearly 40,000 women die of the disease annually. During the past 4 decades, breast cancer rates have risen steadily worldwide and have risen even faster in more developed countries, especially among younger women. Click on a link below to read Dr. Kahlenborn's article on this topic:

• English Version
• Español
• Français

We thank Thierry Levevre for the translation of this paper into the Spanish and French languages.