Lower preoperative serum uric acid level may be a risk factor for postoperative delirium in older patients undergoing hip fracture surgery: a matched retrospective case-control study

Table 4 Outcomes: cases vs matched controls

Outcomes	Case (n=48)	Control (n=48)	t/χ2	p value
Length of stay, day^a	10.86 ± 5.15	8.32 ± 2.63	-3.798	<.001
Hypostatic pneumonia^b	12 (25.00)	8 (16.67)	1.011	.315
Thrombosis^b	13 (27.08)	12 (25.00)	.054	.816

ISSN: 1471-2253