Table 2.
Prevalence of Salmonella serogroups isolated during 2008–2011
| Serogroup | 2008
|
2009
|
2010
|
2011
|
Total
|
P-value
|
||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| n | % | n | % | n | % | n | % | n | % | Slope | Trend | |
| B | 7 | 25.9 | 11 | 26.8 | 3 | 7.5 | 10 | 20 | 31 | 19.6 | 0.255 | 0.107 |
| C1 | 5 | 18.5 | 11 | 26.8 | 10 | 25 | 4 | 8 | 30 | 19 | 0.114 | 0.135 |
| C2 | 5 | 18.5 | 4 | 9.8 | 3 | 7.5 | 4 | 8 | 16 | 10.1 | 0.186 | 0.638 |
| C3 | 0 | 0 | 1 | 2.4 | 5 | 12.5 | 1 | 2 | 7 | 4.4 | * | * |
| D1 | 1 | 3.7 | 7 | 17.1 | 15 | 37.5 | 17 | 34 | 40 | 25.3 | 0.001 | 0.2732 |
| D2 | 0 | 0 | 0 | 0 | 4 | 10.0 | 10 | 20 | 14 | 8.9 | * | * |
| E1 | 4 | 14.8 | 4 | 9.8 | 0 | 0 | 3 | 6 | 11 | 7 | 0.091 | 0.1945 |
| F | 0 | 0 | 1 | 2.4 | 0 | 0 | 0 | 0 | 1 | 0.6 | * | * |
| G1 | 2 | 7.4 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1.3 | * | * |
| H | 1 | 3.7 | 0 | 0 | 0 | 0 | 1 | 2 | 2 | 1.3 | * | * |
| K | 2 | 7.4 | 2 | 4.9 | 0 | 0 | 0 | 0 | 4 | 2.5 | * | * |
| Total¥ | 27 | 100 | 41 | 100 | 40 | 100 | 50 | 100 | 158 | 100 | ||
Notes:
*
chi-square trend test not applicable
¥
total might be different from 100 because of rounding up.