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Table 4 Prevalence of selected birth defects (per 10,000 live births) in Vietnam in comparison to the prevalences reported by full member EUROCAT registries, Belgium and Taiwan

From: External birth defects in southern Vietnam: a population-based study at the grassroots level of health care in Binh Thuan province

Congenital anomalies subgroups Vietnam Full member EUROCAT+ Belgium+ Taiwan*
Nervous system     
  Neural Tube Defects    
   Anencephalus and similar 3.58 3.50 3.16 1.07
   Encephalocele 0.72 1.11 1.42 0.37
   Spinabifida 0 4.74 4.89 0.58
  Hydrocephaly 1.43 5.31 5.52 3.55
  Microcephaly 2.15 2.37 1.74 0.58
  Arhinencephaly/  holoprosencephaly 0 0.85 1.26 nr
Ear
  Anotia 0.72 0.34 0.47 nr
  Microtia 2.15 nr nr nr
Respiratory     
  Choanal atresia 0.72 0.79 0.95 0.21
Orofacial clefts     
  Cleft lip with or without palate 14.33 8.63 12.00 12.80
  Cleft palate 5.37 5.59 3.59 4.67
Abdominal wall defects     
  Gastroschisis 1.43 2.82 1.89 1.20
External genital system
  Hypospadias 0.72 17.51 10.58 3.35
  Indeterminate sex 1.43 0.59 0.63 0.99
Limb     
  Limb reduction 4.30 5.05 5.05 3.22
  Club foot 12.18 10.31 11.21 4.42
  Polydactyly 6.45 8.69 6.79 7.97
  Syndactyly 2.87 5.23 6.95 4.34
  Other limb defects 1.43 nr nr nr
  1. + EUROCAT http://www.eurocat-network.eu/accessprevalencedata/prevalencetables. Date access 03/11/2013; * Data from reference 13; nr: none reported.