Table 1 Characteristics of the three areas in Sweden with significantly higher or lower BCV and BRSV prevalences obtained by a spatial scan statistic (Kulldorff, 1997).
Clusters | BCV | BRSV | ||||||
|---|---|---|---|---|---|---|---|---|
Area (km2) | Samples (n) | Prevalence (%) | RR1 | Area (km2) | Samples (n) | Prevalence (%) | RR1 | |
Skaraborg | 7,585 | 207 | 72.5 | 1.77** | 4,734 | 156 | 69.2 | 1.85** |
Skåne | 3,748 | 254 | 65.5 | 1.51** | 2,852 | 223 | 66.8 | 1.82** |
Kronoberg-Blekinge | 10,145 | 247 | 23.8 | 0.53** | 15,397 | 401 | 20.7 | 0.51* |
Värmland-Dalarna | - | - | - | 31,435 | 89 | 7.9 | 0.20** | |