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Table 5 Number of single familial households with 2 or 3 family members having the same condition

From: Feasibility of identifying families for genetic studies of birth defects using the National Health Interview Survey

Condition

2 family members with the same condition

3 family members with the same condition

Spina Bifida and hydrocephalus

2

-

Congenital anomalies of heart and circulatory system

5

-

Other congenital anomalies of musculoskeletal system

-

-

   Asymmetry of Face

3

-

   Osteodystrophies

-

1

   Congenital scoliosis

5

1

   Clubfoot

3

-

   Flat foot/congenital fallen arches

13

-

Musculoskeletal birth defects but different specific diagnoses

5

3

Others

-

-

   Other condition due to sex chromosome anomalies

2

-

   Other specified anomalies (e.g. Marfan syndrome, Fragile X)

1

-

Total

39

5