Table 3 Extent of the spread of cancer according to the presence or absence of herpes zoster
Cancer <1 year after herpes zoster | Cancer 1–21 years after herpes zoster | |||||
|---|---|---|---|---|---|---|
Patients (N=176) | Controls (N=1623) | Prevalence ratio (95% CIa) | Patients (N=1165) | Controls (N=10 570) | Prevalence ratio (95% CIa) | |
Patients with data on spread | 136 (77%) | 1287 (79%) | 923 (79%) | 8531 (81%) | ||
No spread | 60 (44%) | 607 (47%) | 477 (52%) | 4692 (55%) | ||
Regional spread | 29 (21%) | 330 (26%) | 226 (24%) | 1914 (22%) | ||
Distant metastasis | 47 (35%) | 350 (27%) | 1.27 (0.99–1.63) | 220 (24%) | 1925 (23%) | 1.07 (0.92–1.23) |
