Table 1.
Baseline characteristics of varicella and zoster cases in Hong Kong
| Varicella | Zoster | |||||
|---|---|---|---|---|---|---|
| Statutory notification | A&E attendance | Inpatient admission | A&E attendance | Inpatient admission | ||
| Study period | September 1999–August 2014 | September 2004–August 2014 | ||||
| No. of cases | 173 748 | 14 144 | 2860 | 23 456 | 12 885 | |
| No. of cases with multiple attendance/admission (%) | NA | 1470 (10) | 164 (6) | 4423 (19) | 2600 (20) | |
| No. of attendance/admission | Median (range) | NA | 1 (1–6) | 1 (1–11) | 1 (1–48) | 1 (1–37) |
| Gender (%) | Male | 90 355 (52) | 7626 (54) | 1546 (54) | 11 721 (50) | 6066 (47) |
| Female | 80 391 (47) | 6518 (46) | 1314 (46) | 11 735 (50) | 6819 (53) | |
| Unknown | 2002 (1) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | |
| Age in years | Median (range) | 6 (0–99) | 7 (0–92) | 6 (0–98) | 59 (0–104) | 73 (0–110) |
| CFR (per 1000 cases) | 0 | 0 | 3 | 0 | 38 | |