edwards afb; eglin afb; eielson afb; ellsworth afb; f.e. warren; fairchild afb ; grand forks afb; hanscom afb; hawaii - air force; hill afb; holloman afb; homestead arb; hurlburt field; joint base pearl harbor-hickam; keesler afb; kirtland afb; lackland afb; laughlin afb; little rock afb; los angeles afb; luke afb; macdill afb; malmstrom afb; march arb; maxwell-gunter afb; mcchord afb; mcconnell afb
1 It is reported that amyoplasia comprises 43% of reported cases. 2  No racial tendency is present. 3  Males are more affected in X-linked recessive disorders; otherwise, females and males are equally affected.  Arthrogryposis is detected at birth or in utero using ultrasound.
Some disorders can be detected before birth through prenatal diagnosis (screening). Birth defects may be the result of genetic or environmental factors. This includes errors of morphogenesis, infection, epigenetic modifications on a parental germline, or a chromosomal abnormality.