Table 3.

The total number of infections divided by type of surgery. Values are number (percentage, according to type of surgery). The p-values refer to infection rate within each surgery group

Type of surgery	Group A	Group B	p-value
Foot (n A 214, B 314)	11 (3.5)	17 (7.9)	0.03
deep infection	1 (0.3)	7 (3.3)	0.01 a
Hand (n A 79, B 166)	5 (6.3)	6 (3.6)	0.3 a
deep infection	3 (3.8)	3 (1.8)	0.4 a
Implant (n A 343, B 255)	8 (2.3) c	11 (4.3) c	0.2
deep infection	2 (0.6) c	6 (2.4) b	0.08 a
Other (n A 134, B 46)	4 (3.0)	1 (2.2)	1.0 a
deep infection	4 (3.0)	0 (0.0)	0.6 a

^aFisher’s exact test.

^b1 revision arthroplasty.

^c2 revision arthroplasties.