[Retracted] Judgment and Prevention of Urinary Tract Injury in Gynecological Surgery Based on Data Mining

Table 4

Comparison of the urinary tract injury caused by laparoscopic surgery in the first two years and the next three years.

Period	With urinary tract injury	No urinary system damage	X^2
2012–2014	17	2502
2014–2017	22	6201
Total	39	8703	4.153	0.042