Preoperative anxiety and depression predict two-year outcomes after total hip or knee arthroplasty

Table 5 Comparison of complication occurrence at 2 years postoperatively between the two groups, n (%)

Complication type	Exposed group (n = 92)	Non-exposed group (n = 92)	χ2 value	P value
Periprosthetic infection	6 (6.5)	1 (1.1)
Venous thromboembolism	8 (8.7)	2 (2.2)
Prosthetic loosening	5 (5.4)	1 (1.1)
Prosthetic dislocation	2 (2.2)	1 (1.1)
Heterotopic ossification	3 (3.3)	2 (2.2)
Chronic pain	7 (7.6)	2 (2.2)
Poor wound healing	2 (2.2)	1 (1.1)
Delayed wound healing	2 (2.2)	3 (3.3)
Joint stiffness	2 (2.2)	1 (1.1)
Total complication rate	27 (29.3)	13 (14.1)	6.582	0.01