Which risk factor is associated with hypothyroidism?

Hypothyroidism is more prevalent in females than in males, particularly within the age range of 20 to 40. The reason for this increased susceptibility in women may be linked to autoimmune conditions such as Hashimoto's thyroiditis, which is a common cause of hypothyroidism and occurs more frequently in women. Hormonal fluctuations, particularly related to menstrual cycles and pregnancy, may also influence thyroid function.

While males can develop hypothyroidism, it is less commonly diagnosed in that demographic and generally tends to occur later in life. Therefore, the risk factor associated with hypothyroidism being female and within the specified age range accurately reflects the epidemiological trends observed in clinical practice and research. Other options provided do not align with the established risk factors for hypothyroidism, emphasizing the specificity of the correct answer.