All the information in this table was submitted in the year 1999 or later.
Older frequency information is accessible from the
previous page.
If you have noticed an error or would like to submit mutation
frequency information on behalf of your research center, please send email
to
cftr.frequency@genet.sickkids.on.ca Thank you.
| Location (Ethnic origin) |
Total CF chromosomes screened |
Main |
Contributors |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Africa |
South Africa;
Johannesburg (Gauteng) (Caucasian (European origin)) |
380 |
|
|
|
|
1
|
|
|
1
|
|
|
6
|
3
|
|
3
|
|
1
|
|
|
4
|
|
|
3
|
292
|
|
Michele Ramsay, Andrea Goldman, Robyn Labrum |
South Africa;
Random (Black (African origin)) |
16 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Michele Ramsay, Andrea Goldman, Carolyn Padoa |
Algeria,Marroco,Tunisia;
Random (Arabic) |
52 |
|
|
|
|
|
|
|
|
12
|
|
3
|
|
|
3
|
1
|
|
|
|
|
|
|
6
|
15
|
|
Fran�oise Chevalier-Porst, Dominique Bozon |
| North America |
USA;
American Southeast (Caucasian) |
1470 |
|
8
|
|
|
11
|
9
|
24
|
18
|
1
|
3
|
19
|
25
|
9
|
22
|
|
28
|
2
|
8
|
12
|
2
|
|
25
|
965
|
4
|
Kenneth J. Friedman, Zhaoqing Zhou, Elizabeth M. Rohlfs, Lawrence M. Silvermann |
USA;
American Southeast (African-American) |
52 |
|
1
|
|
|
|
|
|
|
|
|
|
|
1
|
|
|
|
1
|
|
|
|
|
|
27
|
1
|
Kenneth J. Friedman, Zhaoqing Zhou, Elizabeth M. Rohlfs, Lawrence M. Silverman |
| South/Central America |
Colombia;
Bogota, Antioquia(NW), Valle(SW), Caldas(Center), Santander(NE), Bolivar(N) (Mestizos) |
152 |
|
|
|
|
|
|
|
|
|
|
6
|
|
|
1
|
1
|
|
1
|
|
|
|
|
|
73
|
|
Genoveva Keyeux, Clemencia Rodas, Thierry Bienvenu, S. Bousquet, D. Vidaud |
Brazil;
South and Southeast / Parana, Santa Ca
tarina and Minas Gerais states (Caucasian) |
272 |
|
|
1
|
|
|
|
4
|
1
|
1
|
|
18
|
|
8
|
8
|
12
|
|
8
|
1
|
2
|
|
|
6
|
124
|
1
|
Salmo Raskin, Lilian Pereira, Fabio Rueda Faucz, Lodercio Culpi |
Brazil;
Southeast / Minas Gerais state (African-Brazilians) |
76 |
|
|
|
|
|
|
|
|
|
|
1
|
|
1
|
|
2
|
|
|
|
|
|
|
|
9
|
|
Salmo Raskin, Lilian Pereira, Fabio Rueda Faucz, Lodercio Culpi |
| Asia/Middle East |
Lebbanon;
Beirut (Lebbanese) |
54 |
|
|
|
|
1
|
|
|
|
|
|
|
|
|
4
|
|
|
|
|
|
|
|
8
|
18
|
|
Mireille Claustres, Marie des Georges, Andr� Megarbane |
| Australasia |
Australia;
Victoria (Caucasian) |
1234 |
|
7
|
|
|
|
|
|
14
|
|
4
|
30
|
62
|
|
18
|
1
|
5
|
3
|
|
3
|
1
|
2
|
5
|
857
|
|
Desiree du Sart, Karina Forshaw, Ellen Craig |
| Northern Europe |
France;
Brittany (Celtic) |
710 |
33
|
6
|
|
1
|
6
|
1
|
|
5
|
|
|
5
|
24
|
|
7
|
|
2
|
|
|
4
|
|
|
5
|
529
|
1
|
Claude F�rec, Virginie Scotet, Claudine Verlingue |
France;
Brittany (Random) |
280 |
5
|
1
|
|
|
2
|
|
|
2
|
|
|
3
|
8
|
2
|
8
|
|
|
|
|
1
|
|
|
1
|
170
|
3
|
Martine Blayau, Christ�le Dubourg, V�ronique David |
Belgium;
Brussels, Flanders (Caucasian) |
266 |
1
|
2
|
|
|
|
|
2
|
|
|
|
10
|
|
|
5
|
2
|
|
2
|
|
|
|
|
2
|
196
|
1
|
Willy Lissens, Maryse Bonduelle, Inge Liebaers |
France;
Eastern France (European) |
1428 |
6
|
22
|
1
|
1
|
14
|
5
|
12
|
2
|
|
1
|
51
|
5
|
7
|
25
|
7
|
2
|
4
|
5
|
13
|
|
|
15
|
1002
|
7
|
Fran�oise Chevalier-Porst, Dominique Bozon |
France;
Ile de France (Caucasian) |
332 |
1
|
2
|
1
|
2
|
2
|
|
1
|
1
|
2
|
|
10
|
3
|
1
|
5
|
2
|
1
|
|
3
|
4
|
|
|
6
|
221
|
3
|
Delphine Feldmann |
France;
Normandy/Caen (Caucasian) |
200 |
|
1
|
|
|
2
|
|
1
|
1
|
|
1
|
4
|
6
|
|
4
|
2
|
|
|
|
1
|
|
|
|
131
|
8
|
Herve Mittre, Pierre Leymarie |
France;
Random (Caucasian) |
1962 |
13
|
31
|
1
|
5
|
20
|
14
|
3
|
1
|
4
|
5
|
53
|
25
|
7
|
47
|
9
|
7
|
5
|
10
|
21
|
|
4
|
17
|
1343
|
17
|
Claude F�rec, Virginie Scotet, Claudine Verlingue |
England;
Yorkshire (Pakistani) |
40 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2
|
|
|
|
|
|
|
|
10
|
|
Lucy A. Ellis, Graham R. Taylor |
England;
Yorkshire (Caucasian) |
1600 |
2
|
|
4
|
|
|
6
|
3
|
14
|
|
|
12
|
36
|
2
|
7
|
|
28
|
1
|
3
|
2
|
5
|
2
|
2
|
1250
|
2
|
Lucy A. Ellis |
| Southern Europe |
Turkey;
Random (Caucasian) |
202 |
|
|
|
|
|
|
|
|
|
|
9
|
|
1
|
4
|
|
|
|
1
|
|
|
|
1
|
42
|
|
Tuncer Onay, Betul Kirdar |
France;
Southern France (Caucasian) |
600 |
2
|
6
|
1
|
1
|
4
|
2
|
8
|
4
|
7
|
|
31
|
3
|
4
|
15
|
2
|
1
|
6
|
2
|
|
|
|
2
|
306
|
4
|
Mireille Claustres, Marie des Georges, Caroline Guittard |