Table 1.

Suggested new classification of PCOS. Phenotypes were differentiated according to Rotterdam criteria (A phenotype: chronic anovulation, hyperandrogenism, polycystic ovaries; B phenotype: chronic anovulation, hyperandrogenism but normal ovaries; C phenotype: hyperandrogenism, polycystic ovaries but ovulatory cycles; D phenotype: chronic anovulation, polycystic ovaries but normal androgens) and to finding of obesity (ob = obese) or normal body weight (l = lean).

Phenotype	Chronic Anovulation	Hyperandrogenism	Polycystic Ovaries	Obesity
A-ob	+	+	+	+
A-l	+	+	+	−
B-ob	+	+	−	+
B-l	+	+	−	−
C-ob	−	+	+	+
C-l	−	+	+	−
D-ob	+	−	+	+
D-l	+	−	+	−