What is the success rate of IVF technique of reproduction in humans? (30% to 40% / 70% to 80%).

The success rate of In Vitro Fertilization (IVF) in humans generally falls between 30% to 40% for women under 35 years of age. However, success rates can vary based on a variety of factors, including the age of the woman, the cause of infertility, and the specific protocols used in the IVF process.

In women aged 35-37, the success rates typically decrease to approximately 25% to 30%, and for women ages 38-40, it may range from 15% to 25%. For women over 40, the chances of a successful pregnancy through IVF can drop below 10%.

In summary, while some clinics report higher success rates, specifically in younger women or with the use of certain advanced techniques, the commonly accepted range for IVF success is closer to 30% to 40%. Therefore, the more accurate answer based on general statistics would be in the range of 30% to 40%.