Hereditary spherocytosis epidemiology and demographics: Difference between revisions

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== Overview ==
== Overview ==
HS is seen in all populations but appears to be especially common in people of northern European ancestry.
[[Hereditary spherocytosis]] can present at any [[Ageing|age]] with any presentation from [[hydrops fetalis]] [[Uterus|inutero]] through [[diagnosis]] in the ninth decade of [[life]], and is reported worldwide in all [[Race|racial]] and [[Ethnic group|ethnic groups]]. It is most [[Common-cause and special-cause|common]] [[inherited]] [[anemia]] in northern european ancestry and north america. The reported [[incidence]] is 1 in 2000 [[Birth|births]]. Approximately 25% of all [[hereditary spherocytosis]] is [[autosomal recessive]]. It is most often [[Diagnosis|diagnosed]] in childhood or early [[Adult|adulthood]].


== Epidemiology and Demographics ==
== Epidemiology and Demographics ==
[[Fanconi anemia|FA]] is rare overall, but it is one of the most common inherited bone marrow failure syndromes.
* [[Hereditary spherocytosis]] is reported worldwide in all [[Race|racial]] and [[Ethnic group|ethnic groups]].<ref>{{Cite journal
 
| author = [[Silverio Perrotta]], [[Patrick G. Gallagher]] & [[Narla Mohandas]]
Historically, the [[heterozygote]] frequency for pathogenic FA mutations has been estimated to be 1:300 in the United States and Europe and 1:100 in Ashkenazi Jews and South African Afrikaners. A 2011 study using demographic data from the Fanconi Anemia Research Fund estimated a higher carrier frequency in the United States (within the range of 1:156 to 1:209) and in Israel (within the range of 1:66 to 1:128)
| title = Hereditary spherocytosis
| journal = [[Lancet (London, England)]]
| volume = 372
| issue = 9647
| pages = 1411–1426
| year = 2008
| month = October
| doi = 10.1016/S0140-6736(08)61588-3
| pmid = 18940465
}}</ref>
* It is the most [[Common-cause and special-cause|common]] [[inherited]] [[anemia]] in the northern European ancestry and north america.<ref>{{Cite journal
| author = [[Sayeeda Huq]], [[Mark A. C. Pietroni]], [[Hafizur Rahman]] & [[Mohammad Tariqul Alam]]
| title = Hereditary spherocytosis
| journal = [[Journal of health, population, and nutrition]]
| volume = 28
| issue = 1
| pages = 107–109
| year = 2010
| month = February
| pmid = 20214092
}}</ref>
* The reported [[incidence]] of [[hereditary spherocytosis]] is 1 in 2000 [[Birth|births]].<ref>{{Cite journal
| author = [[Sayeeda Huq]], [[Mark A. C. Pietroni]], [[Hafizur Rahman]] & [[Mohammad Tariqul Alam]]
| title = Hereditary spherocytosis
| journal = [[Journal of health, population, and nutrition]]
| volume = 28
| issue = 1
| pages = 107–109
| year = 2010
| month = February
| pmid = 20214092
}}</ref>
* It is less commonly seen in african american and southeast asian people.<ref name="PerrottaGallagher2008">{{cite journal|last1=Perrotta|first1=Silverio|last2=Gallagher|first2=Patrick G|last3=Mohandas|first3=Narla|title=Hereditary spherocytosis|journal=The Lancet|volume=372|issue=9647|year=2008|pages=1411–1426|issn=01406736|doi=10.1016/S0140-6736(08)61588-3}}</ref>


=== Incidence ===
=== Incidence ===
* In the United States, the incidence of the disorder is approximately one case in 5000 people.
* In the [[United States]], the [[incidence]] of the [[Disorder (medicine)|disorder]] is approximately one case in 5000 people.
* Given that approximately 25% of all HS is autosomal recessive, calculations indicate that 1.4% of the US population might be silent carriers of HS.
* Given that approximately 25% of all [[hereditary spherocytosis]] is [[autosomal recessive]], calculations indicate that 1.4% of the US population might be silent [[Carrier|carriers]] of [[hereditary spherocytosis]].


=== Prevalence ===
=== Prevalence ===
* In northern European, HS affects as many as 1 in 2000 to 1 in 5000 (prevalence, approximately 0.02 to 0.05 percent) [6,7,62,75].
* In northern European, [[hereditary spherocytosis]] affects as many as 1 in 2000 to 1 in 5000 ([[prevalence]], approximately 0.02 to 0.05 percent) [6,7,62,75].
* The frequency is thought to be lower in individuals from other parts of the world such as Africa and Southeast Asia, although comprehensive population survey data are unavailable.
* The [[frequency]] is thought to be lower in individuals from other parts of the world such as Africa and Southeast Asia, although comprehensive [[population]] [[Survey Research Methods|survey]] [[data]] are unavailable.


=== Age ===
=== Age ===
* Patients of all age groups may develop FA.
* [[Hereditary spherocytosis]] can present at any [[Ageing|age]] and with any severity, with [[Case report|case reports]] describing a range of presentations, from [[hydrops fetalis]] [[Uterus|in utero]] through [[diagnosis]] in the ninth decade of [[life]].<ref name="pmid18940465">{{cite journal| author=Perrotta S, Gallagher PG, Mohandas N| title=Hereditary spherocytosis. | journal=Lancet | year= 2008 | volume= 372 | issue= 9647 | pages= 1411-26 | pmid=18940465 | doi=10.1016/S0140-6736(08)61588-3 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=18940465  }}</ref><ref name="pmid1954389">{{cite journal| author=Whitfield CF, Follweiler JB, Lopresti-Morrow L, Miller BA| title=Deficiency of alpha-spectrin synthesis in burst-forming units-erythroid in lethal hereditary spherocytosis. | journal=Blood | year= 1991 | volume= 78 | issue= 11 | pages= 3043-51 | pmid=1954389 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=1954389  }}</ref>
* The age of onset of [[bone marrow failure]] in patients with FA is highly variable, even among siblings.
* [[Hereditary spherocytosis]] is most often [[Diagnosis|diagnosed]] in [[Child|childhood]] or early [[Adult|adulthood]].
* Most children are diagnosed between six and nine years of age, concurrent with the onset of [[bone marrow failure]] . Rarely, marrow failure from FA can present in infants and small children.  
* [[Child|Children]] [[Diagnosis|diagnosed]] early in [[life]] usually have a severe form of [[hereditary spherocytosis]] that results in their early presentation. [[Jaundice]] is likely to be most prominent in [[Infant|newborns]]. The [[Magnitude (mathematics)|magnitude]] of [[Jaundice|hyperbilirubinemia]] may be such that [[exchange transfusion]] is required. Approximately 30-50% of [[Adult|adults]] with [[hereditary spherocytosis]] had a history of [[jaundice]] during the first week of [[life]]. Recognition of [[hereditary spherocytosis]] as a potential [[Causality|cause]] of [[Infant|neonatal]] [[anemia]] and [[Jaundice|hyperbilirubinemia]] and institution of prompt treatment may reduce the risk of [[bilirubin]]-induced [[Neurology|neurologic]] dysfunction in these [[Patient|patients]].<ref name="pmid26009624">{{cite journal| author=Christensen RD, Yaish HM, Gallagher PG| title=A pediatrician's practical guide to diagnosing and treating hereditary spherocytosis in neonates. | journal=Pediatrics | year= 2015 | volume= 135 | issue= 6 | pages= 1107-14 | pmid=26009624 | doi=10.1542/peds.2014-3516 | pmc=4444801 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=26009624  }}</ref>
* An analysis of 754 patients in the International Fanconi Anemia Registry (IFAR) suggested that the average age of onset is 7.6 years. However, that study analyzed patients who mainly had defects in the FANCA, FANCC, and FANCG genes, which are the most frequently mutated FA genes; therefore, the results may not be representative of patients with rarer gene defects.
* In adults as compared to children, FA is less commonly diagnosed due to primary [[bone marrow failure]]; instead, the diagnosis of FA more commonly occurs as a consequence of presentation with cancer or with severe toxicity after chemotherapy treatment for a malignancy.
* Severe, usually transient, bone marrow failure can also develop in non-transplanted female patients with FA during pregnancy.


=== Race ===
=== Race ===
* There is no racial predilection to FA. As it is found is all races and ethinic group.
* [[Hereditary spherocytosis]] occurs in all [[Race|racial]] and [[Ethnic group|ethnic groups]] but is more common in northern Europeans,  
* Ethinic groups with higher than average prevalence of FA include Jews, Spanish Gypsies and Black and Afrikaner population from South Africa. These increases prevalence are due to specific founder mutations. Other countried where found founder [[mutation]] include Tunisia, Japan, Korea and Brazil.
 
*


=== Gender ===
=== Gender ===
* Fanconi Anemia slightly more common in male than female with ratio of 1.2:1 (M:F)
* There is no significant [[data]] from US related to gender difference. In 2011, the number of cases was 114 reported from CBM(China Biology Medicine) [[database]], the [[male]]: [[female]] [[ratio]] was 1.04:1.<ref name="pmid25984425">{{cite journal| author=Wang C, Cui Y, Li Y, Liu X, Han J| title=A systematic review of hereditary spherocytosis reported in Chinese biomedical journals from 1978 to 2013 and estimation of the prevalence of the disease using a disease model. | journal=Intractable Rare Dis Res | year= 2015 | volume= 4 | issue= 2 | pages= 76-81 | pmid=25984425 | doi=10.5582/irdr.2015.01002 | pmc=4428190 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=25984425  }}</ref>
* In 2011, overall [[Literature and Medicine|literature]] reported [[prevalence]] of [[hereditary spherocytosis]] in China was estimated to be: 1.27 cases per 100,000 people in [[Male|males]] and 1.49 cases per 100,000 people in [[Female|females]]


*
=== Region ===
=== Region ===
* The FA cases are more prevalent in Middle East parts of the World where tribal and/or local customs with respect to marriage make consanguinity, and thus higher probability of inheriting an autosomal recessive disease more common.
* [[Hereditary spherocytosis]] occurs in 1 in 5,000 individuals of Northern European ancestry. This [[Disease|condition]] is the [[Common-cause and special-cause|most common]] [[Causality|cause]] of [[inherited]] [[anemia]] in that [[population]]. The [[prevalence]] of [[hereditary spherocytosis]] in people of other ethnic backgrounds is unknown, but it is much less common.


=== Developed Countries ===
=== Developed Countries ===

Latest revision as of 21:17, 5 December 2018

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Overview

Hereditary spherocytosis can present at any age with any presentation from hydrops fetalis inutero through diagnosis in the ninth decade of life, and is reported worldwide in all racial and ethnic groups. It is most common inherited anemia in northern european ancestry and north america. The reported incidence is 1 in 2000 births. Approximately 25% of all hereditary spherocytosis is autosomal recessive. It is most often diagnosed in childhood or early adulthood.

Epidemiology and Demographics

Incidence

Prevalence

  • In northern European, hereditary spherocytosis affects as many as 1 in 2000 to 1 in 5000 (prevalence, approximately 0.02 to 0.05 percent) [6,7,62,75].
  • The frequency is thought to be lower in individuals from other parts of the world such as Africa and Southeast Asia, although comprehensive population survey data are unavailable.

Age

Race

Gender

Region

Developed Countries

There is no particular relation of FA with developed countries.

Developing Countries

There is no particular relation of FA with developing countries.

References

  1. Silverio Perrotta, Patrick G. Gallagher & Narla Mohandas (2008). "Hereditary spherocytosis". Lancet (London, England). 372 (9647): 1411–1426. doi:10.1016/S0140-6736(08)61588-3. PMID 18940465. Unknown parameter |month= ignored (help)
  2. Sayeeda Huq, Mark A. C. Pietroni, Hafizur Rahman & Mohammad Tariqul Alam (2010). "Hereditary spherocytosis". Journal of health, population, and nutrition. 28 (1): 107–109. PMID 20214092. Unknown parameter |month= ignored (help)
  3. Sayeeda Huq, Mark A. C. Pietroni, Hafizur Rahman & Mohammad Tariqul Alam (2010). "Hereditary spherocytosis". Journal of health, population, and nutrition. 28 (1): 107–109. PMID 20214092. Unknown parameter |month= ignored (help)
  4. Perrotta, Silverio; Gallagher, Patrick G; Mohandas, Narla (2008). "Hereditary spherocytosis". The Lancet. 372 (9647): 1411–1426. doi:10.1016/S0140-6736(08)61588-3. ISSN 0140-6736.
  5. Perrotta S, Gallagher PG, Mohandas N (2008). "Hereditary spherocytosis". Lancet. 372 (9647): 1411–26. doi:10.1016/S0140-6736(08)61588-3. PMID 18940465.
  6. Whitfield CF, Follweiler JB, Lopresti-Morrow L, Miller BA (1991). "Deficiency of alpha-spectrin synthesis in burst-forming units-erythroid in lethal hereditary spherocytosis". Blood. 78 (11): 3043–51. PMID 1954389.
  7. Christensen RD, Yaish HM, Gallagher PG (2015). "A pediatrician's practical guide to diagnosing and treating hereditary spherocytosis in neonates". Pediatrics. 135 (6): 1107–14. doi:10.1542/peds.2014-3516. PMC 4444801. PMID 26009624.
  8. Wang C, Cui Y, Li Y, Liu X, Han J (2015). "A systematic review of hereditary spherocytosis reported in Chinese biomedical journals from 1978 to 2013 and estimation of the prevalence of the disease using a disease model". Intractable Rare Dis Res. 4 (2): 76–81. doi:10.5582/irdr.2015.01002. PMC 4428190. PMID 25984425.

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