Demographics of AAA
Increasing incidence with age
8% of men >65 years
M: F= 6:1
7th most common cause of male deaths in UK
dilation of AAA
Greater than 3cm
Risk factors for AAA
Age OR 7.73 for those aged over 75 Family history x8 increased risk if affected sibling Sex 0.7-1.5% prevalence in screened women but... Smoking OR >7 for smokers vs non-smokers Associated with increased growth rate of aneurysm Hypertension OR 1.5 in patients with hypertension Ethnicity 50% decreased risk in black men 90% decreased risk in Asian men High cholesterol Genetic disorders Connective tissue disorders Infective (inflammatory causes)
AAA demographics
Increasing incidence with age.
8% of men > 65 years.
M: F = 6: 1
7th most common cause of male death in UK.