Reliability among 10 survey examiners using the WHO standardized set of slides.

*<p>agreement with our gold standard (WHO standardized slides).</p>**<p>Combined kappa for grading all three signs (TF, TI and TS).</p

Household and Individual Characteristics.

<p>Household and Individual Characteristics.</p

Age-specific Prevalence of Cicatricial Trachoma (TS and TT), by sex.

<p>Age-specific Prevalence of Cicatricial Trachoma (TS and TT), by sex.</p

Prevalence Estimates of the Clinical Signs of Trachoma by Age group, Ayod County, Southern Sudan 2006.

<p>95% confidence limits are in ( ).</p>†<p>Signs may occur in combination, survey participants with multiple trachoma signs appear more than once in the table.</p>*<p>Only participants presenting with CO in the presence of TT were considered to have trachomatous CO.</p

Summary of SAFE Intervention targets.

*<p>where applicable.</p

The WHO simplified grading scheme for assessment of Trachoma.

<p>The WHO simplified grading scheme for assessment of Trachoma.</p

Age-specific Prevalence of Active Trachoma (TF and TI), by sex.

<p>Age-specific Prevalence of Active Trachoma (TF and TI), by sex.</p

Age Distribution of Survey Population, by sex.

<p>Age Distribution of Survey Population, by sex.</p

Upper quartile of posterior distribution of predicted prevalence of active trachoma in children aged 1–9 years, Southern Sudan, 2001–2009.

<p>Upper quartile of posterior distribution of predicted prevalence of active trachoma in children aged 1–9 years, Southern Sudan, 2001–2009.</p

Spatially structured residual variation in prevalence of active trachoma in children aged 1–9 years, Southern Sudan, 2001–2009, after accounting for rainfall, land cover and age and sex of survey participants.

<p>Estimates were derived using a geostatistical random effect.</p