Table 1 Procedure characteristics*
From: Staphylococcus aureus infections following knee and hip prosthesis insertion procedures
Prosthetic knee insertion | Prosthetic hip insertion | ||||
|---|---|---|---|---|---|
(N=8,446) | (N=5,273) | ||||
NHSN risk index | 0 | 2,404 | (28) | 1,174 | (22) |
1 | 4,316 | (51) | 2,977 | (56) | |
≥2 | 1,356 | (16) | 984 | (19) | |
Missing | 370 | ( 4) | 138 | ( 3) | |
ASA score | 1: Healthy | 600 | ( 7) | 131 | ( 2) |
2: Mild Systemic Disease | 3,622 | (43) | 2,152 | (41) | |
3: Severe Systemic Disease | 3,855 | (46) | 2,423 | (46) | |
4: Incapacitating Disease | 323 | ( 4) | 526 | (10) | |
5: Dying | 0 | ( 0) | 1 | ( 0) | |
6: Emergency Care | 0 | ( 0) | 0 | ( 0) | |
Missing | 46 | ( 1) | 40 | ( 1) | |
Wound class | Clean | 8,142 | (96) | 5,029 | (95) |
Clean - contaminated | 304 | ( 4) | 244 | ( 5) | |
Age, median (years) | 63 | 67 | |||
Age category | 18-29 | 395 | ( 5) | 78 | ( 1) |
(years) | 30-39 | 421 | ( 5) | 204 | ( 4) |
40-49 | 809 | (10) | 609 | (12) | |
50-59 | 1,776 | (21) | 900 | (17) | |
60-69 | 2,347 | (28) | 1,082 | (21) | |
70-79 | 2,059 | (24) | 1,271 | (24) | |
80+ | 639 | ( 8) | 1,129 | (21) | |
Hospital | Community (N=9) | 4,442 | (53) | 3,160 | (60) |
Type | Tertiary (N=2) | 4,004 | (47) | 2,113 | (40) |