Final answer:
Miscarriage rates vary by age, with higher rates in older mothers. This is also reflected in the fertility outcomes such as lower IVF success rates as women age, especially after 35 years old.
Step-by-step explanation:
The question you're asking pertains to the miscarriage rates among women of different age ranges. Miscarriage risk does increase with maternal age. Studies such as those from the American Family Physician indicate that factors like the incidence of trisomy 21, also known as Down syndrome, increase significantly with the age of the mother. It is also known from data like the Centers for Disease Control and Prevention Morbidity and Mortality Weekly Report that maternal risks, including mortality, can be associated with age and other factors. Additionally, the success rates for fertility treatments like in vitro fertilization (IVF) decrease as a woman's age increases, with a notable drop after age 35.
The fertility discussion, including miscarriage rates and chances of successful pregnancy, is often illustrated with various statistics like the success rate of IVF. For women under 35 years of age, the IVF success rate is more than 40%, whereas it falls to just above 10% for women over 40. These statistics underscore the correlation between mother's age and fertility outcomes.