Table 7.
Summary of space-time clusters of high kidney condemnation rates
| Cluster | # of abattoirs | Radius (km) | Timeframe | # of kidneys condemned/pigs | CR/1000 pigs | O/E |
|---|---|---|---|---|---|---|
| 1 | 51 | 163.92 | 2007/4/17-2007/12/12 | 626/18 958 | 33.02 | 4.49 |
| 2 | 1 | 0 | 2001/3/12-2001/3/16 | 80/714 | 112.04 | 115.85 |
| 3 | 21 | 116.45 | 2004/8/10-2007/2/13 | 2393/39 747 | 60.21 | 39.74 |
| 4 | 11 | 39.74 | 2001/1/2-2004/6/29 | 5725/254 879 | 22.46 | 1.30 |
| 5 | 3 | 8.85 | 2002/10/16-2003/6/24 | 395/1 581 | 249.84 | 3.65 |
Summary of statistically significant (p < 0.05) space-time clusters* of high partial carcass condemnation rates in Ontario Provincial abattoirs for kidneys (2001-2007).**
* SaTScan settings: maximum spatial scanning window specified as 50% of cases; maximum temporal scanning window specified as 50% of the study period.
** Descriptive statistics indicating number of abattoirs in each cluster, cluster radius, cluster timeframe, total kidneys condemned per number of market hogs processed (pigs), corresponding condemnation rate per 1000 pigs and observed/expected (O/E) ratio.