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Table 4 Comparison of median treatment incidences (TI) for different antimicrobial classes and administration route before and after intervention (n = 67)

From: Effectiveness of alternative measures to reduce antimicrobial usage in pig production in four European countries

ParameterMedian before intervention
(Q25; Q75)
Median after intervention
(Q25; Q75)
p-valueaDifference in percentage (%)
TI 3rd generation cephalosporins0 (0.0; 10.3)0 (0.0; 1.1)0.090
TI Aminoglycosides0 (0.0; 0.7)0 (0.0; 0.6)0.240
TI Aminopenicillins139.6 (20.2; 414.0)136.0 (15.9; 350.3)0.19−3
TI Benzylpenicillin0 (0.0; 14.5)0 (0.0; 17.8)0.620
TI Benzylpenicillin-combinations0 (0.0; 14.5)0 (0.0; 5.6)0.010
TI Florfenicols0 (0.0; 0.0)0 (0.0; 0.5)0.810
TI Fluorquinolones9.5 (3.7; 27.3)7.6 (1.0; 28.0)0.15−20
TI Macrolides12.6 (0.3; 208.7)12.4 (0.0; 203.4)0.84−1
TI Macrolide-combinations0 (0.0; 0.6)0 (0.0; 0.2)0.120
TI Pleuromutilins0 (0.0; 0.0)0 (0.0; 0.0)0.180
TI Polymyxins106.8 (1.1; 467.8)33.2 (0.0; 155.4)< 0.001−69
TI Tetracyclines50.7 (0.2; 255.1)26.1 (0.1; 107.1)0.01−49
TI Trimethoprim-Sulfonamides2.3 (0.0; 30.4)0.1 (0.0; 22.8)0.60− 96
Administration route parenteral300.0 (141.2; 493.4)192.5 (111.7; 406.3)0.01−36
Administration route feed/water601.3 (69.8; 1295.7)322.0 (77.4; 632.2)< 0.001−46
  1. aWilcoxon signed rank test (n = 67 farrow-to-finish herds). Significant (p < 0.05) results are highlighted in bold