Volume 28, Number 9—September 2022
Research
Quantifying Population Burden and Effectiveness of Decentralized Surveillance Strategies for Skin-Presenting Neglected Tropical Diseases, Liberia
Joseph W.S. Timothy
, Emerson Rogers, Katherine E. Halliday, Tarnue Mulbah, Michael Marks, Zeela Zaizay, Romeo Giddings, Marie Kempf, Estelle Marion, Stephen L. Walker, Karsor K. Kollie, and Rachel L. Pullan1
, Emerson Rogers, Katherine E. Halliday, Tarnue Mulbah, Michael Marks, Zeela Zaizay, Romeo Giddings, Marie Kempf, Estelle Marion, Stephen L. Walker, Karsor K. Kollie, and Rachel L. Pullan1
Table 1
Final prevalence estimates of primary and secondary skin-NTD outcomes, Liberia*
| Disease | Total no. cases | Crude prevalence/10,000 persons (95% CI) | Design-adjusted population prevalence/10,000 persons (95% CI) | Median age, y | Female, % | Cluster prevalence range/10,000 persons | ICC† |
|---|---|---|---|---|---|---|---|
| All skin NTDs |
236 |
41.5 (36.2–46.8) |
34.0 (29.1–38.9) |
42 |
42.3 |
0‒330 |
0.27 |
| Buruli ulcer |
4 |
0.7 (0.1–1.4) |
0.9 (0–1.8) |
16.5 |
50.0 |
0–39.4 |
NA |
| Leprosy |
39 |
6.9 (4.7–9.0) |
4.4 (3.3–5.5) |
44 |
42.8 |
0–74.1 |
0.18 |
| LF lymphedema |
111 |
19.5 (15.9–23.2) |
17.5 (14.1–21.0) |
48 |
67.3 |
0–209.7 |
0.41 |
| LF hydrocele |
58 |
10.2 (7.6–12.8) |
8.5 (4.8–12.3) |
43 |
0 |
0–256.4 |
0.43 |
| Active yaws | 24 | 4.2 (2.5–5.9) | 2.6 (1.4–3.9) | 10 | 25.0 | 0‒205 | 0.93 |
*Age and sex data were missing for 9 skin NTD cases. ICC, intraclass correlation coefficient; LF, lymphatic filariasis; NA, not available; NTD, neglected tropical disease. †Not estimated for Buruli ulcer.
1These authors contributed equally to this article.
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