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Table 5 Ampicillin resistance

From: Phenotypic antimicrobial resistance in Escherichia coli strains isolated from swine husbandries in North Western Germany – temporal patterns in samples from laboratory practice from 2006 to 2017

 Resistant isolatesSusceptible isolatesOne-factorial log. Reg.Multi-factorial log. Reg.
n%n%ORpORp
Time period2006–2011 (Ref.)134574.6445725.3611
2012–201791973.8032526.130.960.6340.640.014
Age-groupSow (Ref.)2463.161436.8411
Piglet10272.863827.141.570.2462.460.173
Nursery57879.514920.52.260.0193.710.045
Fattening3366.01734.01.130.7821.760.414
Sampling siteGIT (Ref.)188776.4958023.5111
GUT18856.2914643.710.40< 0.00011.980.332
others18977.145622.861.040.8181.190.527