Table 1. Baseline characteristics.
Variable Group A
(n=20)
Group B
(n=20)
Group C
(n=20)
Group D
(n=15)
p-value*
BMI 23.15±3.18 25.25±5.62 23.86±3.43 23.46±3,77 0.8
Age 40.3±6.2 41.16±5.91 42.85±3.55 41.33±4.40 0.3
Endometrial thickness 8.67±1.73 9.02±1.01 9.01±1.16 9.23±2.09 0.14
Progesterone levels 17.47±10.16 14.44±7.08 18.58±8.15 16.84±8.32 0.37

Values are presented as mean ± SD, unless otherwise stated
*ANOVA test