The incidence of tripletsand other multiple births has been increasing to what could this be attributed?

Increased use of fertility treatments: Fertility treatments, such as in vitro fertilization (IVF), have become increasingly common, which can increase the chances of having multiple births.

Delayed childbearing: Women who delay having children until they are older may be more likely to have multiple births, as older women have higher levels of follicle-stimulating hormone (FSH), which stimulates the ovaries to produce multiple eggs.

Genetic factors: Some women may have a genetic predisposition to having multiple births, as inherited genes can affect fertility and the number of eggs released during ovulation.

Racial/ethnic background: Certain racial and ethnic groups, such as African-Americans, have higher rates of multiple births compared to other groups.

Body mass index (BMI): Women who are overweight or obese may be more likely to have multiple births, as excess weight can alter hormone levels and affect ovulation.

Parity: Women who have had previous pregnancies are more likely to have multiple births, especially if they have had twins or other multiples in previous pregnancies.

Advanced maternal age: Advanced maternal age of the mother can increase the likelihood of multiple births, as older women experience higher levels of certain hormones that can stimulate the ovaries to release more than one egg.