Fig. 1From: Is polycystic ovary syndrome appropriately diagnosed by obstetricians and gynaecologists across China: a nationwide surveyAssociation between the ‘frequent’ application rates of oligo-menstruation (a), clinical hyperandrogenism (b), biochemical hyperandrogenism (c), and polycystic ovary (PCO) (d) and diagnostic criteria usedOR, odds ratio; binary logistic regression analysis. The Rotterdam criteria are the reference category of independent variablesBack to article page