Table 1.
Antimicrobial resistance in Italy for specific isolates and antibiotics.
| Species | Annual Number of Isolates Tested | Antimicrobials | Period | % Resistance | ||
|---|---|---|---|---|---|---|
| Mean | SD | Range | ||||
| A. baumannii | 236–2522 | Aminoglycosides | 2012–2020 | 79.6 | 4.3 | 74.7–88.3 |
| Carbapenems | 2012–2020 | 80.8 | 3.7 | 78.3–89.9 | ||
| Fluoroquinolones | 2012–2020 | 83.2 | 3.9 | 79.2–92.1 | ||
| E. coli | 564–7533 | Fluoroquinolones | 2002–2020 | 36.6 | 7.5 | 21.1–44.9 |
| 3rd gen. Cephalosporins | 2002–2020 | 19.6 | 9.9 | 2.9–30.9 | ||
| Aminoglycosides | 2002–2020 | 15.1 | 4.7 | 5.9–22.3 | ||
| Aminopenicillins | 2002–2020 | 61.9 | 6.2 | 48.0–68.1 | ||
| K. pneumoniae | 305–8293 | Carbapenems | 2006–2020 | 21.7 | 13.5 | 1.1–34.3 |
| 3rd gen. Cephalosporins | 2005–2020 | 46.7 | 11.1 | 19.5–57.6 | ||
| Aminoglycosides | 2005–2020 | 28.9 | 7.7 | 7.9–37.0 | ||
| Fluoroquinolones | 2005–2020 | 42.4 | 15.3 | 11.3–56.1 | ||
| S. aureus | 470–10923 | Methicillin | 2000–2020 | 36.5 | 3.0 | 33.5–44.3 |
| P. aeruginosa | 151–4537 | Fluoroquinolones | 2006–2020 | 28.9 | 6.3 | 19.6–42.0 |
| Piperacillin and tazobactam | 2006–2020 | 23.1 | 5.4 | 13.3–30.6 | ||
| Carbapenems | 2006–2020 | 22.8 | 5.3 | 13.7–32.9 | ||
| Ceftazidime | 2006–2020 | 21.1 | 3.2 | 16.2–25.5 | ||
| S. pneumoniae | 141–1017 | Penicillins | 2005–2020 | 4.1 | 1.9 | 0.8–8.6 |
| Macrolides | 2005–2020 | 25.2 | 3.8 | 19.4–33.8 | ||