system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 32-year-old nulliparous woman with polycystic ovary syndrome comes to the physician for a pelvic examination and Pap smear. Last year she had a progestin-releasing intrauterine device placed. Menarche occurred at the age of 10 years. She became sexually active at the age of 14 years. Her mother had breast cancer at the age of 51 years. She is 165 cm (5 ft 5 in) tall and weighs 79 kg (174 lb); BMI is 29 kg/m2. Examination shows mild facial acne. A Pap smear shows high-grade cervical intraepithelial neoplasia. Which of the following is this patient's strongest predisposing factor for developing this condition?
assistant
Early onset of sexual activity