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Table 1 Incidence and distribution of orofacial clefts among different populations

From: An assessment of orofacial clefts in Tanzania

Population

Prevalence

Frequency (%)

Frequency of associated congenital anomalies

  

CL

CP

CLP

 

Europe

   Scotland [29]

1.53

17.8

51.4

30.8

32.9

   Sweden [16]

1.70

26.5

38.8

34.7

21.0

   EUROCAT [8, 30, 31]

1.52

22.1

39.5

38.4

36.5

Asia

   Japan [32]

1.44

32.1

24.8

43.2

21.1

   China [33]

1.66

31.4

15.4

53.2

14.4

   Pakistan [34]

1.91

41.9

23.9

34.2

17.9

Africa

   Zambia [11]

0.24

58.3

3.9

37.8

n/a

   Nigeria [24]

0.37

49.2

18.9

31.9

18

   Kenya [14]

n/a

30.6

8.5

60.9

8.2