Table 4 The crude and age-specific prevalence of nodding syndrome and other forms of epilepsy in the 2017 survey, in Kitgum, Pader and Moyo districts
|  | Kitgum n = 861 | Pader n = 316 | Kitgum & Pader n = 1177 | Moyo n = 961 | P-value |
|---|---|---|---|---|---|
NS and NS plus cases only | |||||
 Crude prevalence of NS: % | 4.3 | 5.1 | 4.5 | 0 | NA |
 95% confidence interval of prevalence | 3.1–5.9 | 3.0–8.3 | 3.4–5.9 | 0 |  |
 Age-standardized prevalence rate of NS: % | 3.7 | 4.4 | 3.8 | 0 | NA |
Age-specific prevalence of NS: n (%) | |||||
 0–9 years | 1 (0.4) | 1 (1.0) | 2 (0.6) | 0 | NA |
 10–19 years | 27 (10.4) | 14 (15.7) | 41 (11.8) | 0 | NA |
 20–29 years | 9 (6.9) | 1 (1.6) | 10 (5.2) | 0 | NA |
 30–39 years | 0 | 0 | 0 | 0 | NA |
 ≥ 40 years | 0 | 0 | 0 | 0 | NA |
OFE only | |||||
 Crude prevalence of OFE: % | 5.3 | 4.1 | 5.0 | 4.8 | 0.831 |
 95% confidence interval of prevalence | 4.0–7.1 | 2.3–7.1 | 3.9–6.5 | 3.6–6.4 |  |
 Age-standardized prevalence of OFE: % | 5.1 | 3.7 | 4.5 | 4.6 | 0.98 |
Age-specific prevalence of OFE: n (%) | |||||
 0–9 years | 2 (0.8) | 2 (2.0) | 4 (1.1) | 9 (3.2) | 0.089a |
 10–19 years | 15 (5.8) | 8 (9.0) | 23 (6.6) | 5 (1.9) | 0.005b |
 20–29 years | 25 (19.1) | 2 (3.4) | 27 (14.1) | 17 (11.1) | 0.412b |
 30–39 years | 1 (1.3) | 1 (5.3) | 2 (2.1) | 4 (4.3) | 0.442a |
 ≥ 40 years | 3 (2.2) | 0 | 3 (1.6) | 11 (6.6) | 0.026a |
All epilepsy cases (NS + OFE) | |||||
 Crude epilepsy prevalence: % | 9.6 | 9.2 | 9.5 | 4.8 | <  0.001 |
 95% confidence interval of prevalence | 7.8–11.9 | 6.3–13.1 | 7.9–11.4 | 3.6–6.4 |  |
 Age-standardized prevalence rate of epilepsy: % | 8.8 | 7.9 | 8.3 | 4.6 | <  0.001 |