Obesity Differentially Affects Phenotypes of Polycystic Ovary Syndrome

Table 1

Phenotype classification of PCOS patients in different populations.

Features	Phenotype A; HA + OA + PCO (%)	Phenotype B; HA + OA (%)	Phenotype C; HA + PCO (%)	Phenotype D; OA + PCO (%)
Palermo, Italy^1	53.9	8.9	28.8	8.4
Erzurum, Turkey^2	44.1	22.8	14.2	18.9
Sao Paulo, Brazil^3	58.4	7.9	11.1	22.6
Mexico City, Mexico^4	64.5	32.6	2.9	0

HA: hyperandrogenism; OA: oligo-anovulation; PCO: polycystic ovaries. The NIH criteria recognizes A and B phenotypes, the Rotterdam consensus accepts all four phenotypes, and the AES-PCOS admits A, B, and C phenotypes. Data taken from ¹Guastella et al. [14], ²Yilmaz et al. [15], ³Melo et al. [16], and ⁴Moran et al. [17].