In which demographic is AAA most likely to occur?

Abdominal Aortic Aneurysm (AAA) is most commonly found in the elderly. The condition involves a dilation or bulging of the abdominal aorta, which can lead to serious complications if it ruptures.

Risk factors contributing to the development of AAA include age, with the highest prevalence in individuals over the age of 65. This demographic is more likely to have other predisposing characteristics such as atherosclerosis, hypertension, and a history of smoking, all of which significantly increase the likelihood of developing an AAA.

In contrast, AAA is extremely rare in children and young adults due to the differences in vascular health and the absence of age-related risk factors. Pregnancy can also lead to vascular changes, but it does not predispose individuals to AAA in the same way that aging does. Thus, focusing on elderly patients aligns with the established medical literature on AAA prevalence.