Table 2.
The most frequently* identified bacteria/antimicrobial/species combinations reported from retained citations (n = 39) in animal populations that investigated the associations between modifiable non-antimicrobial factors or interventions and antimicrobial resistance.
| Combination | Animal | No. | Frequency* |
|---|---|---|---|
| E. coli/tetracycline | 26 | 5% | |
| Pig | 17 | ||
| Cow | 9 | ||
| E. coli/ampicillin | 17 | 4% | |
| Pig | 10 | ||
| Cow | 7 | ||
| E. coli/apramycin | 15 | 3% | |
| Pig | 12 | ||
| Cow | 3 | ||
| Campylobacter/ciprofloxacin | 15 | 3% | |
| Pig | 14 | ||
| Cow | 1 | ||
| E. coli/gentamicin | 13 | 3% | |
| Pig | 8 | ||
| Cow | 5 | ||
| E. coli/streptomycin | 13 | 3% | |
| Pig | 6 | ||
| Cow | 7 |
*
Denominator was total number of associations reported in ‘reliable’ studies (n = 485). All other bacteria/antimicrobial combinations were identified at a frequency of < 2%.