Variable Mean±SD Median (min-max) 95% reference range
Age (years) 29.8±5.4 30(18-49) -
Endometrial thickness (mm) 8.7±2.7 8(4-15) -
Uterine cavity width (mm) 31.6±4.0 31(24-44) 25-40
Uterine cavity length (mm) 31.9±3.1 32(23-42) 26-38
Internal os width (mm) 7.3±1.6 7(4-11) 4-11
Lateral indentation depth (mm) 3.6±1.4 3.5(0-7) 0.8-6.4
Lateral indentation angle (degree) 150.9±10.1 152(130-180) 131-171
Cornual angle (degree) 63.1±12.5 62(40-104) 39-88
Uterine cavity area (cm²) 5.5±1.3 5.2(3.4-10.5) 3.0-8.0