Effects of surgical treatment modalities on postoperative cognitive function and delirium in elderly patients with extremely unstable hip fractures

Table 1 Analysis of comparability of general data between the two groups

Categories	Control group (n = 30)	Research group (n = 30)	χ2 value	P value
Sex			0.067	0.796
Male	14 (46.67)	15 (50.00)
Female	16 (53.33)	15 (50.00)
Age (yr)	63.20 ± 5.32	62.40 ± 6.04	0.544	0.588
Fracture site			0.617	0.432
Left	11 (36.67)	14 (46.67)
Right	19 (63.33)	16 (53.33)
Hypertension			0.635	0.426
Yes	17 (56.67)	20 (66.67)
No	13 (43.33)	10 (33.33)
Diabetes			0.373	0.542
Yes	8 (26.67)	6 (20.00)
No	22 (73.33)	24 (80.00)

Table 2 Adverse events

Events	Control group (n = 30)	Research group (n = 30)	χ2 value	P value
Internal fixation failure	1 (3.33)	1 (3.33)	-	-
Infection	2 (6.66)	1 (3.33)	-	-
Nonunion	2 (6.66)	1 (3.33)	-	-
Malunion	2 (6.66)	0 (0.00)	-	-
Postoperative delirium	3 (10.00)	0 (0.00)	-	-
Total	10 (33.33)	3 (10.00)	4.812	0.028