Table 2

Genetic investigations in LDCU cases

School 1School 2Total
The completeness of basic genetic investigation is documented in all children with LDCU and in the subgroup with an affected first, second, or third degree relative.
Number of LDCU cases325284
    Chromosomes19 (59.4%)10 (19.2%)29 (34.5%)
    FRAXA10 (31.3%)6 (11.5%)16 (19%)
    Both9 (28.1%)4 (7.7%)13 (15.5%)
LDCU cases with FH172946
    Chromosomes8 (47%)7 (24.1%)15 (32.6%)
    FRAXA4 (23.5%)5 (17.2%)9 (19.6%)
    Both2 (11.7%)4 (23.5%)6 (13%)