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Table 1 Characteristics of patients undergoing IVF in the Instituto Valenciano de Infertilidad between 2004 and 2008 (n = 7954)

From: Individualised controlled ovarian stimulation (iCOS): maximising success rates for assisted reproductive technology patients

Characteristics Age group (years)
  ≤35 36-40 > 40
BMI < 25 ≥ 25 < 25 ≥ 25 < 25 ≥ 25
Normo ovulatory (%) 31.9 5.6 19.3 4.1 7 1.8
Anovulation/PCOS (%) 4.5 2.5 1.4 0.9 0.06 0.04
Low responders (%) 4.4 0.7 3.6 0.6 0.34 0.06
Endometriosis (%) 5.7 0.4 2.7 0.2 0.18 0.02