Figure 1.
Municipal and ward boundaries in Dar es Salaam, Tanzania.
A total of 45 wards were included in the Unplanned Land Property Register Project, and are indicated by stippling.
Figure 2.
Population density by ward and major roads in Dar es Salaam, Tanzania, 2006.
Ward populations in 2006 were projected by the National Bureau of Statistics using data from the 2002 Census.
Figure 3.
Number of suspected cholera cases by month, year, and municipality in Dar es Salaam, 2006–2008.
“NR” indicates months for which no cholera cases were reported. The shaded areas indicate time periods for which data were available at the ward level.
Figure 4.
Cholera incidence in Dar es Salaam, 2006.
Legend categories were determined by natural breaks.
Table 1.
Principal component analysis of assets reported by informal residents in 45 wards in Dar es Salaam, Tanzania.
Figure 5.
Scatter plots of the natural log of cholera incidence/10,000 population versus potential predictors among 45 wards in Dar es Salaam, Tanzania.
As the presence of roads was a categorical predictor, it was not included here. Pearson's correlation coefficient between each variable and the natural log of cholera incidence/10,000 population is indicated. * p<0.05, ** p<0.01, *** p<0.001
Table 2.
Incidence rate ratios for the negative binomial model estimating cholera cases among 45 wards in Dar es Salaam, Tanzania in 2006, offset by the natural log of population.