IRR 95% CI p-value
Age (years) 0.92 0.91-0.93 <0.001
BMI (kg/m2) 0.99 0.97-0.99 0.019
AFC 1.39 1.03-1.04 <0.001
AMH (pmol/l) 1.02 1.03-1.02 <0.001
Oestradiol on day of trigger (per 1000 pmol/l) 1.08 1.07-1.09 <0.001
Number of follicles >12 mm on day of trigger 1.04 1.04-1.04 <0.001