Physiological Uterine Involution in Primiparous and Multiparous Women: Ultrasound Study

Table 2

Median characteristics ± standard deviation of the uterine size with minimum and maximum values (mm).

	1st day			30th day			60th day
	Primiparous	Multiparous		Primiparous	Multiparous		Primiparous	Multiparous
Uterus length (mm)	162.0 ± 17.5; (132–190)	174.0 ± 13.5; (139–190)	0.148	81.0 ± 8.4; (59–91)	83.0 ± 6.7; (68–94)	0.284	63.0 ± 8.2; (49–82)	71.5 ± 12.1; (52–94)	0.069
Uterus width (mm)	119.0 ± 8.7; (36–70)	116.0 ± 12.9; (99–147)	0.805	59.0 ± 6.9; (48–76)	67.0 ± 6.6; (48–74)	0.005	51.0 ± 8.7; (36–70)	53.5 ± 10.7; (39–87)	0.394
AP max (mm)	82.0 ± 10.1; (68–110)	94.0 ± 13.1; (66–116)	0.01	44.0 ± 5.6; (28–54)	48.0 ± 6.7; (32–58)	0.017	36.0 ± 3.9; (30–44)	39.0 ± 8.0; (24–60)	0.059
AP 5 cm below UF (mm)	79.0 ± 10.9; (54–97)	85.0 ± 13.9; (64–116)	0.065	41.0 ± 8.0; (22–51)	40.0 ± 8.5; (17–56)	0.351	22.0 ± 5.2; (15–35)	27.5 ± 9.1; (14–60)	0.015