The occurrence of<unk>  varies by ethnicity. In the United Kingdom the rate of<unk>  in Caucasian men older than 65 years is about 4.7%, while in Asian men it is 0.45%. It is also less common in individuals of African, and Hispanic heritage. They occur four times more often in men than women. There are at least 13,000 deaths yearly in the U.S. secondary to<unk>  rupture. The peak number of new cases per year among males is around 70 years of age, the percentage of males affected over 60 years is 2–6%. The frequency is much higher in smokers than in non-smokers (8:1), and the risk decreases slowly after smoking cessation. In the U.S., the incidence of<unk>  is 2–4% in the adult population. Rupture of the<unk>  occurs in 1–3% of men aged 65 or more, the mortality is 70–95%.
Abdominal aortic aneurysm
Appendicitis
Superior mesenteric artery syndrome
Splenic infarction
Aortoenteric fistula
Postcholecystectomy syndrome
Renal vein thrombosis
Spontaneous bacterial peritonitis