Table 1: Demographic and other baseline characteristics (mean ± SD).

iCR 
Tibolone

Age (years)52.6 ± 3.0
(range 47 to 60)
51.5 ± 4.6
(range 41 to 60)
0.304
Duration of amenorrhea (months)31.5 ± 23.932.4 ± 25.70.896
BMI (kg/m2)23.1 ± 2.523.5 ± 2.50.526
KMI24.9 ± 6.126.2 ± 5.90.409
Age at menarche (years)14.9 ± 2.114.3 ± 1.80.238
Number of pregnancies2.6 ± 1.12.5 ± 1.20.754
Serum estradiol (mg/dL)54.0 ± 45.656.3 ± 38.60.835
Serum FSH (U/mL)83.7 ± 33.278.5 ± 29.20.518
Thickness of uterine intima (mm)2.9 ± 1.23.1 ± 1.10.535