Which group has the highest incidence of hypothyroidism?

The group with the highest incidence of hypothyroidism is indeed females aged 30-60. This demographic is particularly affected due to several biological and autoimmune factors. Women are more susceptible to autoimmune thyroid diseases, including Hashimoto's thyroiditis, which is a leading cause of hypothyroidism. The prevalence of thyroid disorders, including insufficiency, increases with age, and the specific age range of 30-60 years encompasses a significant period when many women may experience changes in hormone levels, health status, and susceptibility to autoimmune conditions.

Furthermore, women are generally affected by thyroid dysfunction at much higher rates than men. This disparity may be linked to genetic predisposition as well as hormonal influences, such as those related to pregnancy and menopause, which can impact thyroid function.

In summary, while other demographics can also experience hypothyroidism, the combination of gender, age, and the increased incidence of autoimmune conditions makes females aged 30-60 the group with the highest incidence of this endocrine disorder.