| Number of reporting studies [refs] | Sample size | N of events (SAEs) | Rate (%) | 95% CI | I2 (%) |
---|---|---|---|---|---|---|
Systemic complications | ||||||
  VTE | 11 | 770,255 | 7797 | 1.22 | 0.83–1.70 | 99.6 |
  GU complications | 3,917,328 | 37,180 | 1.22 | 0.83–1.67 | 99.5 | |
  Respiratory complications | 4,358,372 | 44,485 | 0.45 | 0.23–0.76 | 99.8 | |
  Cardiac complications | 4,442,502 | 42,278 | 0.31 | 0.12–0.6 | 99.8 | |
  Sepsis | 7 | 373,454 | 887 | 0.26 | 0.17–0.38 | 97.2 |
  Stroke/CVA | 6 | 3,784,876 | 5433 | 0.10 | 0.04–0.19 | 97.2 |
  Mortality | 4,370,987 | 11,424 | 0.16 | 0.09–0.24 | 99.0 | |
Local complications | ||||||
  Return to OR | 3 | 92,135 | 779 | 1.04 | 0.57–1.65 | 97.4 |
  Superficial infection | 5 | 243,048 | 1066 | 0.43 | 0.21–0.72 | 98.6 |
  Deep + periprosthetic infection | 4,506,163 | 10,591 | 0.30 | 0.24–0.37 | 98.3 | |
  Wound dehiscence | 5 | 3,774,946 | 1458 | 0.13 | 0.05–0.26 | 98.0 |
  Implant-related compl. | 4 | 92,551 | 32 | 0.04 | 0.01–0.08 | 72.0 |
  Periprosthetic fractures | 3 | 78,499 | 23 | 0.10 | 0.008–0.3 | 91.0 |