Table 1 Determinants of the presence of mcr-1 in Dutch retail chicken meat samples, 2015
From: High prevalence of the mcr-1 gene in retail chicken meat in the Netherlands in 2015
Determinant | Samples n = 214 | mcr-1 PCR positive n (%) | OR (95% CI) | Adjusted OR (95%CI) |
|---|---|---|---|---|
Labelling as free-range | ||||
 Yes | 70 | 10 (14.3) | reference | reference |
 No | 144 | 43 (29.8) | 2.6 (1.2-5.5) | 3.0 (1.3-6.6) |
Supermarket chain | ||||
 A | 53 | 1 (1.9) | reference | reference |
 B | 53 | 10 (18.9) | 12.1 (1.5-98.3) | 12.5 (1.5-101.8) |
 C | 54 | 21 (38.9) | 33.1 (4.2-257.8) | 34.6 (4.4-272.0) |
 D | 54 | 21 (38.9) | 33.1 (4.2-257.8) | 37.5 (4.8-295.3) |
Country of origina | ||||
 NL | 67 | 21 (30.3) | 2.9 (1.3-6.5) |  |
 GER | 44 | 19 (43.2) | 4.8 (2.0-11.4) |  |
 DEN | 9 | 1 (11.1) | 0.8 (0.1-6.9) |  |
 NL/GER | 80 | 11 (13.8) | reference |  |
 NL/GER/BE | 12 | 0 (0.0) | not applicable |  |
 Unknown | 2 | 1 (50.0) | 6.3 (0.4-107.8) |  |