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The diagnosis of polycystic ovaries in women with oligo‐amenorrhoea: predictive power of endocrine tests
Author(s) -
Fox Robert,
Corrigan Elizabeth,
Thomas Paul A.,
Hull Michael G. R.
Publication year - 1991
Publication title -
clinical endocrinology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.055
H-Index - 147
eISSN - 1365-2265
pISSN - 0300-0664
DOI - 10.1111/j.1365-2265.1991.tb00282.x
Subject(s) - progestogen , endocrine system , polycystic ovary , free androgen index , endocrinology , medicine , testosterone (patch) , hirsutism , androgen , sex hormone binding globulin , gynecology , hormone , insulin resistance , diabetes mellitus
Summary The ability of several endocrine tests to distinguish between women with and without polycystic ovaries (PCO) has been studied prospectively in a series of 65 patients with functional oligo‐amenorrhoea using ultrasonography as a reference test. In terms of overall diagnostic accuracy, the free androgen Index (FAI) (94%) and the progestogen challenge (89%) gave similar results (CI =–5 to 15%) but both were significantly better than all the other tests including measurement of serum LH (69%), total testosterone (71%) and androstenedlone (74%) (minimum CI = 6 to 23%). The FAI together with LH measurement was the most accurate of the combinations (97%) but this was not significantly better than the best of the combinations Incorporating the progestogen challenge (92%; CI =–3% to 13%). Given the limited availability of the assay for SHBG, these results show that assessment of oestrogen state is a useful method for categorizing patients with functional oligo‐amenorrhoea