Variables | No | RR (95% CI) Unadjusted p-value | RR (95% CI) Adjusted | p-value | |
---|---|---|---|---|---|
Age | |||||
60-69 | 9717 | 1 | 1 | ||
< 60 | 4989 | 0.9 (0.7-1.3) | 0.7 | 0.9 (0.7-1.3) | 0.6 |
70-79 | 10,009 | 0.8 (0.6-1.0) | 0.1 | 0.8 (0.6-1.1) | 0.1 |
> 80 | 3547 | 0.7 (0.5-1.1) | 0.1 | 0.7 (0.5-1.1) | 0.1 |
Sex | |||||
men | 10,186 | 1 | 1 | ||
women | 18,076 | 0.5 (0.4-0.6) | <0.001 | 0.5 (0.4-0.6) | <0.001 |
Diagnosis | |||||
OAa | 25,152 | 1 | 1 | ||
Otherb | 3110 | 1.6 (1.2-2.1) | 0.004 | 1.4 (1.0-2.0) | 0.04 |
ASA | |||||
1 | 4167 | 1 | 1 | ||
2 | 17,918 | 1.1 (0.8-1.5) | 0.7 | 1.2 (0.8-1.7) | 0.4 |
3+ | 5621 | 1.7 (1.2-2.5) | 0.005 | 1.8 (1.2-2.7) | 0.003 |
Hospital volume | |||||
1-49 | 3953 | 1 | 1 | ||
50-99 | 10,615 | 1.1 (0.8-1.6) | 0.5 | 1.1(0.8-1.6) | 0.5 |
100-149 | 6379 | 1.2 (0.8-1.7) | 0.4 | 1.1 (0.7-1.7) | 0.6 |
≥ 150 | 7315 | 1.2 (0.8-1.7) | 0.4 | 1.1 (0.7-1.7) | 0.6 |
Perioperative complications | |||||
no | 27,068 | 1 | 1 | ||
yes | 640 | 2.3 (1.4-3.9) | 0.002 | 2.1 (1.3-3.6) | 0.004 |
Computer navigation | |||||
no | 23,626 | 1 | 1 | ||
yes | 2462 | 1.0 (0.7-1.5) | 1.0 | 1.0 (0.7-1.5) | 1.0 |
Prior fracturec | |||||
no | 27,711 | 1 | 1 | ||
yes | 551 | 2.20(1.1-3.6) | 0.02 | 1.5 (0.8-2.7) | 0.2 |
Prior osteotomyd | |||||
no | 27,377 | 1 | 1 | ||
yes | 885 | 0.9 (0.5-1.8) | 0.8 | 0.8 (0.4-1.5) | 0.5 |
TKA implant brands | |||||
LCS Complete | 8752 | 1 | 1 | ||
AGC | 2233 | 0.8 (0.5-1.3) | 0.3 | 0.8 (0.5-1.3) | 0.3 |
LCS | 516 | 1.1 (0.5-2.3) | 0.9 | 1.3 (0.6-2.9) | 0.5 |
Duracon | 2043 | 1.6 (1.1-2.3) | 0.02 | 1.5 (0.8-2.7) | 0.2 |
NexGen | 4717 | 1.2 (0.8-1.6) | 0.4 | 1.0 (0.7-1.4) | 1.0 |
Profix | 6286 | 0.9 (0.6-1.2) | 0.4 | 0.9 (0.6-1.2) | 0.4 |
PFC Sigma | 697 | 1.0 (0.4-2.3) | 1.0 | 0.9 (0.4-2.0) | 0.7 |
Triathlon | 1317 | 1.0 (0.6-1.8) | 1.0 | 0.9 (0.5-1.5) | 0.6 |
Vanguard TM | 741 | 0.3 (0.1-1.0) | 0.06 | 0.2 (0.1-0.8) | 0.03 |
Otherse | 955 | 0.4 (0.1-1.0) | 0.05 | 0.4 (0.1-1.0) | 0.06 |
Time Period | |||||
2005-2009 | 12,362 | 1 | 1 | ||
2010-2014 | 15,900 | 1.3 (1.0-1.6) | 0.03 | 1.3 (1.0-1.6) | 0.08 |