Table 4. Data from previous studies examining risk factors for periprosthetic joint infection (PJI) or surgical site infection (SSI) in patients who underwent THA and TKA.
| Author | Year | Country | Research type | Total number of patients | Position | Statistical method |
| Bozic et al. | 2013 | USA | Case–control | 587 | THA-PJI | Multivariate Cox regression |
| Namba et al. | 2013 | USA | Cohort study | 56,216 | TKA-SSI | Multivariate Cox regression |
| Everhart at al. | 2013 | USA | Cohort study | 1,891 | TJA-SSI | Logistic regression |
| Poultsides et al. | 2012 | USA | Cohort study | 1,196,691 | Hip and knee arthroplasty-PJI | Logistic regression |
| Namba et al. | 2012 | USA | Cohort study | 30,491 | THA-SSI | Multivariate Cox regression |
| Dale et al. | 2012 | Norway | Cohort study | 432,168 | THA-PJI | Multivariate Cox regression |
| Bozic et al. | 2012 | USA | Cohort study | 40,919 | THA-PJI | Multivariate Cox regression |
| Bozic et al. | 2012 | USA | Cohort study | 83,011 | TKA-PJI | Multivariate Cox regression |
| Song et al. | 2012 | Republic of Korea | Cohort study | 6,848 | THA,TKA-SSI | Logistic regression |
| Peel et al. | 2011 | Australia | Case–control | 189 | Hip and knee arthroplasty-PJI | Logistic regression |
| Pulido et al. | 2008 | USA | Cohort study | 9,245 | Hip and knee arthroplasty-PJI | Logistic regression |
| Babkin et al. | 2007 | Israel | Case-control | 180 | TKA-SSI | Logistic regression |
| Kasteren et al. | 2007 | Holland | Cohort study | 1,922 | THA-SSI | Logistic regression |
| Lai et al. | 2007 | Canada | Case-control | 52 | Hip and knee arthroplasty-PJI | Logistic regression |
| Ridgeway et al. | 2005 | UK | Cohort study | 24,808 | Hip arthroplasty-SSI | Logistic regression |
Abbreviations: THA, total hip arthroplasty; TKA, total knee arthroplasty; TJA, total joint arthroplasty.