[Retracted] Comparison of the Efficacy and Safety of Neuroendoscopic Endonasal Transsphenoidal Surgeries and Intracranial Endoscopic Pterional Approach in Resection of Tuberculum Sellae Meningiomas

Table 3

Comparison of visual improvement between the two groups.

Groups	Vision improvement		Total
	Improvement	Nonimprovement
Study group	25	5	30
Control group	18	12	30
Total	43	17	60

χ² = 4.022, .