Table 1. Disease Burden by Study Site†,*.
Site | Matlab, Bangladesh ‡ |
North Jakarta, Indonesia |
Kolkata, India |
Beira, Mozambique |
---|---|---|---|---|
Disease Surveillance Period |
1994-2003 | Aug., 2001– July, 2003 |
May, 2003– April, 2005 |
Jan.-Dec. 2004 |
Surveillance target (years) |
All ages | All ages | All ages | 2 years old and above |
Cholera Incidence by
age group (per 1000 per year) [N. of Cases] |
||||
1-4 years old | 2.88 | 0.90 | 3.55 | 4.27 |
15+ years | 1.03 | 0.27 | 0.93 | 3.85 |
Total | 2.09 | 0.45 | 1.64 | 4.00 |
The annual incidence of culture-confirmed cholera was calculated using the population as the denominator and the number of cholera cases in the study area as the numerator.
To compute the incidence rates for these two age groups, the incidence rates measured in the burden of disease studies are weighed by the proportion of the study site’s population in each age group. In Matlab, the incidence rates measured by the burden of disease studies are weighted by the proportion of the total cases seen in each age group.
These average annual incidence rates are based on 10 years of disease surveillance (from 1994-2003) conducted by ICDDR,B, including surveillance under the DOMI Programme from May 2004 to May 2005.