[Retracted] Clinical Application of Microsurgery Using the Cerebellar Medulla Fissure Approach in Severe Ventricular Hemorrhage with Casting of the Fourth Ventricle and Its Influence on Neurological Recovery

Table 2

Comparison of the 3-day hematoma clearance rate in each group.

3-day hematoma clearance rate	Control group (n = 40)	Observation group (n = 40)	X^2
≥90%	21 (52.50)	30 (75.00)	4.381	0.036
<90% and ≥70%	13 (32.50)	8 (20.00)	1.614	0.204
<70%	6 (15.00)	2 (5.00)	2.222	0.136