Infection Control & Hospital Epidemiology
213
Table 1. Multivariate Logistic Regression Model for Risk and Protective Factors of Deep Staphylococcus aureus Surgical Site Infections Following Hip and Knee Arthroplasties, 19 Hospitals in Finland During 1999–2016
Risk/Protective Factor Variable Gender
Age in males Age in females ASA score
Type of operation Effect Male vs female
Increase of risk by 10 y Increase of risk by 10 y >1 vs 1
Emergency vs elective Wound class
Duration of operation Time of operation Month of operation
Primary total hip vs primary partial hip Revision hip vs primary partial hip Primary knee vs primary partial hip Revision knee vs primary partial hip >1 vs 1
>120 min vs<120 min Operation before 11 a.m. vs after 11 a.m. Summer months (May, June, July, August) vs other months Note: OR, odds ratio; CI, confidence interval; ASA, American Society of Anesthesiologists.
Acknowledgments. We thank Louise Coole, EPIET Scientific Coordinator, Public Health England, Leeds, United Kingdom, for reviewing the manuscript.
Financial support. No financial support was provided relevant to this article.
Conflicts of interest. All authors report no conflicts of interest relevant to this article.
References
1. Skufca J, Ollgren J, Virtanen MJ, Huotari K, Lyytikäinen O. Interhospital comparison of surgical site infection rates in orthopedic surgery. Infect Control Hosp Epidemiol 2017;38:423–429.
2. Horan TC, Gaynes RP, Martone WJ, Jarvis WR, Emori TG. CDC definitions of nosocomial surgical site infections, 1992: a modification of CDC definitions of surgical wound infections. Infect Control Hosp Epidemiol 1992;13:606–608.
3. Marmor S, Kerroumi Y. Patient-specific risk factors for infection in arthroplasty procedure. Orthop Traumatol Surg Res 2016;102:S113–S119.
4. Ho J, Meis JF, Nabuurs-Franssen M, Voss A. Hip and knee arthroplasty: Quo vadis? Antimicrob Resist Infect Control 2015;4:19.
5. Brandt C, Sohr D, Behnke M, Daschner F, Rüden H, Gastmeier P. Reduction of surgical site infection rates associated with active surveillance. Infect Control Hosp Epidemiol 2006;27:1347–1351.
6. Surgical site infections. European Center for Disease Control website.
https://www.ecdc.europa.eu/sites/portal/files/documents/AER_for_2016- SSI.pdf. Published 2018. Accessed May 11, 2018.
7. Surveillance atlas of infectious diseases. European Center for Disease Control website.
https://ecdc.europa.eu/en/surveillance-atlas-infectious- diseases. Published 2018. Accessed June 19, 2018.
8. Abbas M, Aghayev E, Troillet N, et al. Temporal trends and epidemiology of Staphylococcus aureus surgical site infection in the Swiss surveillance network: a cohort study. J Hosp Infect 2018;98:118–126.
9. Benito N, Franco M, Ribera A, et al. Time trends in the aetiology of prosthetic joint infections: a multicentre cohort study, the REIPI (Spanish Network for Research in Infectious Disease) Group for the Study of Prosthetic Joint Infections. Antimicrob Agents Chemother 2016;22:732:e1–e8.
10. KaneP,ChenC, Post Z, Radcliff K, OrozcoF,OngA. Seasonality of infection rates after total joint arthroplasty. Orthopedics 2014;37:e182–e186.
Adjusted OR 9.31 0.80 1.00 2.59 1.15 1.18 1.63 1.06 1.63 0.82 1.43 0.80 1.32
95% CI
3.34 0.75 0.87 1.56 0.64 0.60 1.14 0.78 0.82 0.44 1.14 0.63 1.04
25.96 0.85 1.16 4.30 2.06 2.32 2.34 1.45 3.25 1.54 1.79 1.01 1.69
P Value .000 .000 .900 .000 .634 .634 .008 .703 .161 .543 .002 .061 .023
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76 |
Page 77 |
Page 78 |
Page 79 |
Page 80 |
Page 81 |
Page 82 |
Page 83 |
Page 84 |
Page 85 |
Page 86 |
Page 87 |
Page 88 |
Page 89 |
Page 90 |
Page 91 |
Page 92 |
Page 93 |
Page 94 |
Page 95 |
Page 96 |
Page 97 |
Page 98 |
Page 99 |
Page 100 |
Page 101 |
Page 102 |
Page 103 |
Page 104 |
Page 105 |
Page 106 |
Page 107 |
Page 108 |
Page 109 |
Page 110 |
Page 111 |
Page 112 |
Page 113 |
Page 114 |
Page 115 |
Page 116 |
Page 117 |
Page 118 |
Page 119 |
Page 120 |
Page 121 |
Page 122 |
Page 123 |
Page 124 |
Page 125 |
Page 126 |
Page 127 |
Page 128 |
Page 129 |
Page 130 |
Page 131 |
Page 132 |
Page 133 |
Page 134 |
Page 135 |
Page 136 |
Page 137 |
Page 138 |
Page 139 |
Page 140 |
Page 141 |
Page 142 |
Page 143 |
Page 144 |
Page 145 |
Page 146 |
Page 147 |
Page 148 |
Page 149 |
Page 150 |
Page 151 |
Page 152 |
Page 153 |
Page 154 |
Page 155 |
Page 156
