Obstetrics and gynecology
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To review new evidence regarding ten controversial issues in the use of contraceptive methods among women with special conditions and to present World Health Organization recommendations derived in part from this evidence. ⋯ Of ten contraceptive method and condition combinations assessed, the evidence supported an increased risk of cardiovascular complications with combined OC use by women with hypertension or migraine. As new evidence becomes available, assessment of risk and recommendations for use of contraceptive methods can be revised accordingly.