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
Contraceptive LNG-IUD (levonorgesterel intrauterine device) has the cumulative pregnancy rate at 5 years of:
assistant
The correct answer is  LNG - IUD has a pregnancy rate of 0.2 100 women years (HWY) (here nearest is 0.5 so that is the answer).