A karyotype analysis was performed at the Medical Genetics Department of Zekai Tahir Burak Women's Hospital, Ankara, Turkey, for 75 women younger than 40 years found to have POF over a 5-year period.
There were 18 familial cases (24 % ), 1 of which involving an abnormality of the X chromosome [46,X,del(X)(q22)]. Sixteen patients (21.3 % ) had chromosomal abnormalities such as Xq and Xp deletions, translocations, and numerical aberrations; 2 had Swyer syndrome; 2 were fragile X premutation carriers; and 1 had galactosemia.
A genetic cause of POF was identified in 39 (52 % ) of 75 patients. A thorough genetic evaluation of women with POF should be performed regardless of clinical features suggestive of chromosomal abnormality.