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Autoimmune pancreatitis epidemiology and demographics

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Iqra Qamar M.D.[2]

Overview

Autoimmune pancreatitis is a world wide entitiy but it’s incidence has been found to be recently increased in Japan. In North America, 2.5% of pancreatoduodenectomies are done because of AIP being misdiagnosed as pancreatic cancer. The mean age of patients with AIP is 59 yr (range, 45–75 yr). In autoimmune pancreatitis, the male-to-female ratio was found to be 15:2. Autoimmune pancreatitis usually involves elderly male population.

Epidemiology and Demographics

Incidence:

  • Autoimmune pancreatitis is a world wide entitiy but it’s incidence has been found to be recently increased in Japan.[1][2][3]

Prevalence:

  • In Japan, the prevalence of autoimmune pancreatitis is estimated to be 0.82 per 100 000 inhabitants.
  • In North America, 2.5% of pancreatoduodenectomies are done because of AIP being misdiagnosed as pancreatic cancer.

Age:

  • The mean age of patients with AIP is 59 yr (range, 45–75 yr).

Gender:

  • In autoimmune pancreatitis, the male-to-female ratio was found to be 15:2.
  • Autoimmune pancreatitis usually involves elderly male population.[4][5][6]

References

  1. ↑ Finkelberg DL, Sahani D, Deshpande V, Brugge WR (2006). “Autoimmune pancreatitis”. N. Engl. J. Med. 355 (25): 2670–6. doi:10.1056/NEJMra061200. PMID 17182992.
  2. ↑ Okazaki K (2003). “Autoimmune pancreatitis is increasing in Japan”. Gastroenterology. 125 (5): 1557–8. PMID 14628815.
  3. ↑ Kim KP, Kim MH, Lee SS, Seo DW, Lee SK (2004). “Autoimmune pancreatitis: it may be a worldwide entity”. Gastroenterology. 126 (4): 1214. PMID 15057766.
  4. ↑ Okazaki K, Uchida K, Chiba T (2001). “Recent concept of autoimmune-related pancreatitis”. J. Gastroenterol. 36 (5): 293–302. PMID 11388391.
  5. ↑ Horiuchi A, Kawa S, Hamano H, Hayama M, Ota H, Kiyosawa K (2002). “ERCP features in 27 patients with autoimmune pancreatitis”. Gastrointest. Endosc. 55 (4): 494–9. PMID 11923760.
  6. ↑ Kawa S, Ota M, Yoshizawa K, Horiuchi A, Hamano H, Ochi Y, Nakayama K, Tokutake Y, Katsuyama Y, Saito S, Hasebe O, Kiyosawa K (2002). “HLA DRB10405-DQB10401 haplotype is associated with autoimmune pancreatitis in the Japanese population”. Gastroenterology. 122 (5): 1264–9. PMID 11984513.

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