Table 7.
Results of a local clustering analysis using Kulldorff's scan test. Cohort-wise analysis.
| Cohort | Population size inside cluster | Total number of cases | Number of cases inside cluster | Log likelihood ratio | p-value | Centre of cluster | Radius of cluster (km) |
| 1994 | 55545 | 5 | 4 | 9.941 | 0.0484 | (181500,444500) | 25.079 |
| 1994/1995 | 69535 | 5 | 3 | 13.17 | 0.0053 | (162500,456500) | 4.472 |
| 1995 | No significant clustering | ||||||
| 1995/1996 | No significant clustering | ||||||
| 1996 | 145764 | 32 | 20 | 16.55 | 0.0007 | (252500,443500) | 57.870 |
| 1996/1997 | 171601 | 25 | 18 | 18.40 | 0.0002 | (252500,443500) | 57.870 |
| 1997 | 206348 | 12 | 7 | 19.60 | 0.0001 | (139500,424500) | 12.806 |
| 1997/1998 | 242090 | 10 | 6 | 17.04 | 0.0004 | (139500,424500) | 12.806 |