Table 3 Willingness of clinical geneticists (whole group or from only some countries) to provide a carrier test to (A) a 16-year-old minor whose parents are both carriers of an autosomal recessive disorder or (B) a 16-year-old girl whose mother is a carrier of an X linked disorder
Per cent (No./total responding)
Disorder1. Very unwilling2. Unwilling3. Neither unwilling or willing4. Willing5. Very willing
(A) Autosomal recessive
    α-1-Antitrypsin deficiency7 (11/162)28 (46/162)20 (33/162)37 (60/162)8 (12/162)
    Deafness (connexin 26)9 (14/166)28 (47/166)19 (32/166)37 (62/166)7 (11/166)
    Aspartylglucosaminuria9 (14/150)31 (46/150)25 (38/150)32 (47/150)3 (5/150)
    Sickle cell anaemia8 (12/156)26 (41/156)21 (33/156)40 (62/156)5 (8/156)
    Ataxia telangiectasia11 (17/158)30 (48/158)22 (35/158)33 (52/158)4 (6/158)
    Spinal muscular dystrophy9 (15/165)25 (42/165)21 (34/165)39 (64/165)6 (10/165)
    β-Thalassaemia7 (12/159)27 (43/159)21 (33/159)39 (62/159)6 (9/159)
    Tay–Sachs disease10 (16/153)28 (43/153)19 (29/153)37 (56/153)6 (9/153)
    Cystic fibrosis8 (13/170)26 (44/170)16 (28/170)42 (71/170)8 (14/170)
(B) X linked
    Adrenoleucodystrophy7 (11/164)26 (42/164)22 (37/164)40 (65/164)5 (9/164)
    Glucose-6-phosphate dehydrogenase deficiency5 (8/160)28 (45/160)22 (35/160)39 (63/160)6 (9/160)
    Choroideremia6 (9/150)26 (39/150)26 (39/150)38 (57/150)4 (6/150)
    Haemophilia A5 (8/166)22 (37/166)23 (38/166)42 (69/166)8 (14/166)
    Fabry disease6 (10/156)24 (38/156)20 (31/156)44 (69/156)6 (10/156)
    Retinitis pigmentosa6 (10/161)27 (44/161)21 (34/161)41 (65/161)5 (8/161)
    Fragile X syndrome5 (8/168)22 (37/168)18 (31/168)48 (80/168)7 (12/168)
    X linked severe combined immunodeficiency6 (10/158)25 (40/158)30 (32/158)41 (65/158)7 (11/158)
  • The minor is requesting the carrier test personally.