Table 2.
Year | Raccoon dog mandible samples | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Spring TTC negative |
Spring TTC positive |
Autumn TTC negative |
Autumn TTC positive |
Chi2* | P* | |||||
n* | % | n* | % | n* | % | n* | % | |||
2006 | 43 | 60 | 17 | 40 | 730 | 59 | 300 | 41 | 0.04 | 0.83 |
2007 | 38 | 24 | 29 | 76 | 169 | 19 | 137 | 81 | 0.44 | 0.5 |
2008 | 358 | 61 | 139 | 39 | 1023 | 53 | 479 | 47 | 6.85 | 0.009 |
2009 | 59 | 39 | 36 | 61 | 278 | 42 | 160 | 58 | 0.24 | 0.62 |
2010 | 186 | 56 | 81 | 44 | 551 | 31 | 379 | 69 | 37.7 | 0 |
Total | 684 | 56 | 302 | 44 | 2751 | 47 | 1455 | 53 | 16.7 | 0.00004 |
Stratification: Chi2 Mantel-Haenszel = 25.3; p = 5 × 10-7
Chi2 - squared test (χ2 test)
P - probability
n - number of samples