[Retracted] Surgery and Postoperative Care of Patients Undergoing Percutaneous Nephrolithotomy under the Guidance of B-Ultrasound Based on Smart Internet of Things

Table 4

Comparison of preoperative qualitative data of different complications.

Variable		Complication		Chi-square group
		Normal group	Complication group
Gender	1: male	54	3	0.828	0.259
	2: female	39	4
Generation	1: ≤60	45	2	2.761	0.214
	2: >60	48	5
History of preoperative diabetes	0: no	64	6	0.066	0.784
	1: yes	29	1
Affected side	1: left	45	3	0.33	0.981
	2: right	48	4