Table 1: Patient preoperative and intraoperative demographic characteristics.

Group A uterine cavity 4-6.5 cm Group B uterine cavity > 6.5
Mean (SD) Mean (SD) t p
Age 44.1 (5.2) 45.0 (6.0) -0.49 0.53
Parity* 2.1 (0.9) 2.6 (1.9) -1.35 0.015
Preoperative US uterine volume* 116.3 (43.8) 206.9 (106.6) -4.54 < 0.001
Length of uterine cavity (cm)* 5.4 (0.6) 7.1 (0.2) -8.30 0.005
Width of uterine cavity (cm)* 4.0 (0.7) 4.4 (0.4) -1.8 0.048
N (%) N (%) X2 P
Nulliparous 6 (7.1) 1 (11.1) 0.26 0.61
Vaginal delivery only 61 (69.3) 4 (44.4) 2.27 0.13
Caesarean section 22 (25) 2 (22.2) 2.75 0.43
Heavy menstrual periods only 59 (67.0) 4 (44.4) 1.84 0.18
Heavy menstrual periods and dysmenorrhea 29 (32.9) 5 (55.6)
Adenomyosis (n = 93) 18 (20.5) 3 (33.3) 1.49 0.49
Previous mirena IUD failure 14 (15.9) 3 (33.3) 1.87 0.17
Mirena IUD insertion or replacement intraoperatively 6 (6.8) 0 (0.0) 0.63 0.43
Mirena IUD replaced intraoperatively 3 (3.4) 1 (11.1) 1.30 0.25
Submucous fibroids^ (n = 93) 7 (8) 0 (0.0) 0.81 0.37
Fibroids (excluding submucous) (n = 92), #* 20 (22.7) 5 (55.6) 4.06 0.04
Intrauterine polyps$ (n = 93) 10 (11.7) 1 (11.1) 0.005 0.94

^Diagnosed on US or intraoperatively; #Diagnosed on preoperative US; $-Diagnosed on US or intraoperatively; *p = < 0.05.