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Volume 5, Number 4—August 1999

Dispatch

The Surveillance of Vero Cytotoxin-Producing Escherichia coli O157 in Wales, 1990 to 1998

Rachel M. Chalmers*, Sharon M. Parry, Roland L. Salmon*, Robert M.M. Smith*, Geraldine A. Willshaw, and Tom Cheasty
Author affiliations: *Public Health Laboratory Service Communicable Disease Surveillance Centre, Cardiff, United Kingdom; †Welsh Combined Centres for Public Health, Cardiff, United Kingdom; ‡Central Public Health Laboratory, Colindale, London, United Kingdom

Main Article

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.

Main Article

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