Volume 5, Number 4—August 1999
Dispatch
The Surveillance of Vero Cytotoxin-Producing Escherichia coli O157 in Wales, 1990 to 1998
Table 2
Age and sex distribution of cases of VTEC O157, Wales, 1990–1998
| Age range | Total | Male | Female |
|---|---|---|---|
| <1 | 24 (7.9, CI = 4.9-11.9) | 13 (8.3) | 11 (7.5) |
| 1-4 | 117 (9.0, CI = 7.4-10.7) | 71 (10.7) | 46 (7.2) |
| 5-14 | 56 (1.6, CI = 1.2-2.1) | 32 (1.8) | 24 (1.4) |
| 15-24 | 44 (1.4, CI = 1.0-1.8) | 19 (1.1) | 25 (1.6) |
| 25-34 | 44 (1.2, CI = 0.8-1.6) | 19 (1.0) | 25 (1.3) |
| 35-44 | 30 (0.9, CI = 0.6-1.2) | 14 (0.8) | 16 (0.9) |
| 45-54 | 33 (1.0, CI = 0.7-1.3) | 11 (0.6) | 22 (1.3) |
| 55-64 | 25 (0.9, CI = 0.6-1.5) | 10 (0.7) | 15 (1.1) |
| >65 | 35 (0.9, CI = 0.5-1.1) | 15 (0.9) | 20 (0.8) |
| Total (mean) | 415 (1.6, CI = 1.4-1.7) | 207 (1.6) | 208 (1.5) |
Figures in parentheses are mean annual rates per 100,000 population,
followed by 95% confidence intervals (CI) for age-specific rates.
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