Table 2.

Univariate analysis of risk factors for guide wire displacement

Risk factors		No displacement	Displacement	Correlation coefficient	P
Age(years)		52 (47.75, 52.25)	52 (49.25, 57.75)	− 0.616	0.538
Gender	Male	39 (59.1%)	9 (56.3%)	0.043	0.836
	Female	27 (40.9%)	7 (43.8%)
BMI(kg/m2)		22.91 (20.71, 25.70)	22.49 (21.48, 23.95)	− 0.398	0.691
Smoking history	Yes	30 (45.5%)	8 (50.0%)	0.107	0.744
	No	36 (54.5%)	8 (50.0%)
Drinking history	Yes	30 (45.5%)	7 (43.8%)	0.015	0.902
	No	36 (54.5%)	9 (56.3%)
Number of screws	4	63 (95.5%)	13 (81.3%)	5.109	0.085
	6	3 (4.5%)	2 (12.5%)
	8	0 (0.0%)	1 (6.3%)
Occupation	Farmers	27 (40.9%)	6 (37.5%)	2.111	0.965
	Retired personnel	5 (7.6%)	1 (6.3%)
	Staff	8 (12.1%)	2 (12.5%)
	Worker	16 (24.2%)	6 (37.5%)
	Freelancers	5 (7.6%)	1 (6.3%)
	Unemployed	4 (6.1%)	0 (0.0%)
	Student	1 (1.5%)	0 (0.0%)