Table 4 Tetracycline resistance
Resistant isolates | Susceptible isolates | One-factorial log. Reg. | Multi-factorial log. Reg. | ||||||
|---|---|---|---|---|---|---|---|---|---|
n | % | n | % | OR | p | OR | p | ||
Time period | 2006–2011 (Ref.) | 1492 | 82.98 | 306 | 17.02 | 1 | – | 1 | – |
2012–2017 | 882 | 70.9 | 362 | 29.10 | 0.5 | < 0.0001 | 0.5 | 0.0002 | |
Age-group | Sow (Ref.) | 25 | 65.79 | 13 | 34.21 | 1 | – | 1 | – |
Piglet | 97 | 69.78 | 42 | 30.22 | 1.20 | 0.637 | 1.00 | 0.999 | |
Nursery | 557 | 76.72 | 169 | 23.28 | 1.71 | 0.127 | 1.36 | 0.637 | |
Fattening | 32 | 64 | 18 | 36 | 0.93 | 0.862 | 0.73 | 0.644 | |
Sampling site | GIT (Ref.) | 1967 | 79.86 | 496 | 20.14 | 1 | – | 1 | – |
GUT | 226 | 67.66 | 108 | 32.34 | 0.53 | < 0.0001 | 0.84 | 0.874 | |
others | 181 | 73.88 | 64 | 26.12 | 0.71 | 0.028 | 0.96 | 0.796 | |