Table 5.

Intrauterine hematoma features in women who did and did not have pregnancy loss before 20 weeks of gestation

Intrauterine hematomas feature	Pregnancy Loss at Less Than 20 wk (n = 34)	No Pregnancy Loss at Less Than 20 wk (n = 75)	Vanishing twin syndrome at less than 20wk (n = 15)	P value
Volume (cm3)*	1.80 (0.77–6.05)	1.65 (0.64–3.56)	1.61 (0.42–3.47)	0.514※
Largest diameter (cm)	2.3 (1.7–3.3)	2.25 (1.65–2.9)	1.95 (1.25–3.1)	0.524※
Vaginal bleeding	34 (61.82)	75 (66.96)	15 (62.5)	0.499#

Data are the median (IQR) or n/N (%) unless otherwise specified

*Measured as length x width x height × 0.52

※Kruskal-Wallis test

#Chi-square test

P < 0.05 indicates statistical significance