Polymyositis and dermatomyositis epidemiology and demographics: Difference between revisions
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==Epidemiology and Demographics== | ==Epidemiology and Demographics== | ||
===Incidence=== | ===Incidence=== | ||
*The incidence of polymyositis and dermatomyositis is approximately 2 per 100,000 individuals worldwide.<ref name="pmid9281381">{{cite journal |vauthors=Jacobson DL, Gange SJ, Rose NR, Graham NM |title=Epidemiology and estimated population burden of selected autoimmune diseases in the United States |journal=Clin. Immunol. Immunopathol. |volume=84 |issue=3 |pages=223–43 |date=September 1997 |pmid=9281381 |doi= |url=}}</ref> | *The incidence of polymyositis and dermatomyositis is approximately 2 per 100,000 individuals worldwide.<ref name="pmid9281381">{{cite journal |vauthors=Jacobson DL, Gange SJ, Rose NR, Graham NM |title=Epidemiology and estimated population burden of selected autoimmune diseases in the United States |journal=Clin. Immunol. Immunopathol. |volume=84 |issue=3 |pages=223–43 |date=September 1997 |pmid=9281381 |doi= |url=}}</ref><ref name="KhanChristopher-Stine2011">{{cite journal|last1=Khan|first1=Sabiha|last2=Christopher-Stine|first2=Lisa|title=Polymyositis, Dermatomyositis, and Autoimmune Necrotizing Myopathy: Clinical Features|journal=Rheumatic Disease Clinics of North America|volume=37|issue=2|year=2011|pages=143–158|issn=0889857X|doi=10.1016/j.rdc.2011.01.001}}</ref> | ||
*In 2010, the incidence of polymyositis and dermatomyositis was estimated to be 1-1.3 cases per 100,000 individuals in Japan annually.<ref name="AirioKautiainen2006">{{cite journal|last1=Airio|first1=A.|last2=Kautiainen|first2=H.|last3=Hakala|first3=M.|title=Prognosis and mortality of polymyositis and dermatomyositis patients|journal=Clinical Rheumatology|volume=25|issue=2|year=2006|pages=234–239|issn=0770-3198|doi=10.1007/s10067-005-1164-z}}</ref> | *In 2010, the incidence of polymyositis and dermatomyositis was estimated to be 1-1.3 cases per 100,000 individuals in Japan annually.<ref name="AirioKautiainen2006">{{cite journal|last1=Airio|first1=A.|last2=Kautiainen|first2=H.|last3=Hakala|first3=M.|title=Prognosis and mortality of polymyositis and dermatomyositis patients|journal=Clinical Rheumatology|volume=25|issue=2|year=2006|pages=234–239|issn=0770-3198|doi=10.1007/s10067-005-1164-z}}</ref> | ||
*In 1970, the age‐adjusted annual incidence of polymyositis was 5 cases per 100,000 individuals in USA hospital‐based retrospective study.<ref name="DalakasHohlfeld20033">{{cite journal|last1=Dalakas|first1=Marinos C|last2=Hohlfeld|first2=Reinhard|title=Polymyositis and dermatomyositis|journal=The Lancet|volume=362|issue=9388|year=2003|pages=971–982|issn=01406736|doi=10.1016/S0140-6736(03)14368-1}}</ref> | *In 1970, the age‐adjusted annual incidence of polymyositis was 5 cases per 100,000 individuals in USA hospital‐based retrospective study.<ref name="DalakasHohlfeld20033">{{cite journal|last1=Dalakas|first1=Marinos C|last2=Hohlfeld|first2=Reinhard|title=Polymyositis and dermatomyositis|journal=The Lancet|volume=362|issue=9388|year=2003|pages=971–982|issn=01406736|doi=10.1016/S0140-6736(03)14368-1}}</ref> | ||
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:
Overview
Epidemiology and Demographics
Incidence
- The incidence of polymyositis and dermatomyositis is approximately 2 per 100,000 individuals worldwide.[1][2]
- In 2010, the incidence of polymyositis and dermatomyositis was estimated to be 1-1.3 cases per 100,000 individuals in Japan annually.[3]
- In 1970, the age‐adjusted annual incidence of polymyositis was 5 cases per 100,000 individuals in USA hospital‐based retrospective study.[4]
Prevalence
- The prevalence of polymyositis and dermatomyositis is approximately 5-22 per 100,000 individuals worldwide.[1]
- In 2003, the prevalence of polymyositis and dermatomyositis was estimated to be 21.5 cases per 100,000 individuals in Quebec.[5]
- In 2010, the prevalence of polymyositis and dermatomyositis was estimated to be 13.2 cases per 100,000 individuals in Japan.[3]
Case-fatality rate/Mortality rate
- The 5-year survival rate for polymyositis is 75% and for dermatomyositis is 63%.[3]
- The median survival for polymyositis is 11.0 years and that for dermatomyositis is 12.3 years.[3]
Age
- Dermatomyositis has a bimodal pattern, commonly affects both children and adults over 50 years old.[6][2]
- Polymyositis commonly affects adults after second decades of their lives and it is rare among children.[6][7]
Race
- There is no racial predilection to polymyositis and dermatomyositis.
Gender
- Females are more commonly affected by polymyositis and dermatomyositis than males. The female to male ratio is approximately 2 to 1.[6]
Region
- Prevalence of polymyositis and dermatomyositis are lower in young rural men and higher in older urban women.[8]
References
- ↑ 1.0 1.1 Jacobson DL, Gange SJ, Rose NR, Graham NM (September 1997). "Epidemiology and estimated population burden of selected autoimmune diseases in the United States". Clin. Immunol. Immunopathol. 84 (3): 223–43. PMID 9281381.
- ↑ 2.0 2.1 Khan, Sabiha; Christopher-Stine, Lisa (2011). "Polymyositis, Dermatomyositis, and Autoimmune Necrotizing Myopathy: Clinical Features". Rheumatic Disease Clinics of North America. 37 (2): 143–158. doi:10.1016/j.rdc.2011.01.001. ISSN 0889-857X.
- ↑ 3.0 3.1 3.2 3.3 Airio, A.; Kautiainen, H.; Hakala, M. (2006). "Prognosis and mortality of polymyositis and dermatomyositis patients". Clinical Rheumatology. 25 (2): 234–239. doi:10.1007/s10067-005-1164-z. ISSN 0770-3198.
- ↑ Dalakas, Marinos C; Hohlfeld, Reinhard (2003). "Polymyositis and dermatomyositis". The Lancet. 362 (9388): 971–982. doi:10.1016/S0140-6736(03)14368-1. ISSN 0140-6736.
- ↑ Bernatsky, S; Joseph, L; Pineau, C A; Belisle, P; Boivin, J F; Banerjee, D; Clarke, A E (2008). "Estimating the prevalence of polymyositis and dermatomyositis from administrative data: age, sex and regional differences". Annals of the Rheumatic Diseases. 68 (7): 1192–1196. doi:10.1136/ard.2008.093161. ISSN 0003-4967.
- ↑ 6.0 6.1 6.2 Dalakas, Marinos C; Hohlfeld, Reinhard (2003). "Polymyositis and dermatomyositis". The Lancet. 362 (9388): 971–982. doi:10.1016/S0140-6736(03)14368-1. ISSN 0140-6736.
- ↑ Dalakas, Marinos C; Hohlfeld, Reinhard (2003). "Polymyositis and dermatomyositis". The Lancet. 362 (9388): 971–982. doi:10.1016/S0140-6736(03)14368-1. ISSN 0140-6736.
- ↑ Bernatsky, S; Joseph, L; Pineau, C A; Belisle, P; Boivin, J F; Banerjee, D; Clarke, A E (2008). "Estimating the prevalence of polymyositis and dermatomyositis from administrative data: age, sex and regional differences". Annals of the Rheumatic Diseases. 68 (7): 1192–1196. doi:10.1136/ard.2008.093161. ISSN 0003-4967.