Table 2 |
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|
Significant low rate giardiasis spatial clusters in southern Ontario, 1990–98 |
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| Clustera |
No. of Cases in cluster |
Expected No. of cases |
Annual cases per 100,000 person-yrs |
Cluster RRb |
No. of CSDsc |
P-value |
|
|
||||||
| 1 |
102 |
587 |
0.3 |
0.17 |
15 |
0.001 |
| 2 |
297 |
704 |
0.8 |
0.42 |
4 |
0.001 |
| 3 |
257 |
542 |
0.9 |
0.47 |
5 |
0.001 |
| 4 |
275 |
541 |
1 |
0.51 |
19 |
0.001 |
| 5 |
494 |
722 |
1.3 |
0.68 |
6 |
0.001 |
| 6 |
339 |
457 |
1.4 |
0.742 |
1 |
0.001 |
| 7 |
2 |
20 |
0.2 |
0.1 |
6 |
0.019 |
| 8 |
105 |
166 |
1.2 |
0.63 |
14 |
0.065 |
|
|
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|
a See Figure 4 for the spatial distribution of the geographically large clusters b Rate ratio c Census Sub-divisions |
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|
Odoi et al. International Journal of Health Geographics 2004 3:11 doi:10.1186/1476-072X-3-11 |
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