Comparison of prevalence estimates by impairment/health condition using key informants (KI) method and population-based household survey
| Impairments/health conditions | KIM camps (258 000) (<18 years population covered) | Household survey ( 8120) (<18 years population covered) | ||||
|---|---|---|---|---|---|---|
| n | Per 1000 | 95% CI | n | Per 1000 | 95% CI | |
| All children identified as having an impairment | 2334 | 9.0 | 8.7 to 9.4 | 119 | 14.7 | 12.0 to17.3 |
| All children identified as having an impairment excluding those with hearing impairment | 1937 | 7.5 | 7.2 to 7.8 | 68 | 8.4 | 6.4 to 10.4 |
| By specific health condition/impairment* | ||||||
| Generalised seizure disorder | 390 | 1.5 | 1.4 to 1.7 | 18 | 2.2 | 1.2 to 3.2 |
| Physical impairment | 1601 | 6.2 | 5.9 to 6.5 | 65 | 8.0 | 6.1 to 9.9 |
| Bilateral visual impairment | 184 | 0.7 | 0.6 to 0.8 | 4 | 0.5 | 0.01 to 1.0 |
| Bilateral hearing impairment (Audiometry) | 86 | 0.3 | 0.2 to 0.4 | 52 | 6.4 | 4.7 to 8.1 |
| Bilateral hearing impairment (Presumed based on clinical diagnosis or audiometry) | 513 | 2.0 | 1.8 to 2.2 | |||
*Some children have a physical and/or visual and/or hearing impairment, so that the individual prevalence figures do not add up to the overall prevalence figures (312 children in KIM had more than one impairment, that is, 13.4% of all children with an impairment).
KIM, key informant methodology.