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Table 2 Etiology of recognized syndromes and associations in the entire HCAR datatset and among the subjects with OCs.

From: Oral clefts with associated anomalies: findings in the Hungarian Congenital Abnormality Registry

Etiological Entity

Entire Dataset

Subjects with OCs

Mendelian Syndromes

  

   Stickler type I*

4

2

   Faciogenitopopliteal

2

2

   Ectrodactyly, ectodermal dysplasia, CL/P

6

6

   Diastrophic displasia

2

1

   Meckel

28

4

   Orofaciodigital type II

5

5

   Roberts

4

4

   Orofaciodigital type I

9

1

Subtotal

60

25

Chromosomal

  

   Trisomy 13

35

29

   Trisomy 18

22

1

   Deletions

25

1

Subtotal

82

31

Teratogenic

  

   Hydantoin

4

4

Associations

  

   Schisis

130

73

Total

276

133

  1. *Stickler syndrome included Robin sequence