Table 2.
Prevalence of schistosomiasis comparing Kato-Katz diagnostic with CCA tests and SEA-ELISA
| Site (Map ID) |
DIAGNOSTIC TEST | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Kato-Katz | CCA | SEA-ELISA | ||||||||
| N | Infection intensity L/M/H |
Prevalence (95% CIs) |
N | Infection intensity tr/+/++/+++ |
Prevalence - trace as positive (95% CIs) |
Prevalence - trace as negative (95% CIs) |
N | Infection intensity tr/+/++/+++ |
Prevalence (95% CIs) |
|
| Butulume (45) |
15 | 2/0/0 | 13.3 (1.7-40.5) |
15 | 4/0/0/0 | 26.7 (7.8-55.1) |
0.0 (0.0-21.8) |
15 | 3/0/0/0 | 20.0 (4.3-48.1) |
| Jaana (33) |
20 | 1/0/0 | 5.0 (0.1-24.9) |
23 | 1/1/0/0 | 8.7 (1.1-28.0) |
4.3 (0.1-21.9) |
22 | 0/6/2/4 | 54.5 (32.2-75.6) |
| Kachungwa (40) |
20 | 2/0/0 | 10.0 (1.2-31.7) |
23 | 2/1/0/0 | 13.0 (2.8-33.6) |
4.3 (0.1-21.9) |
23 | 2/1/4/2 | 39.1 (19.7-61.4) |
| Kuuye (39) |
20 | 3/1/0 | 20.0 (5.7-43.7) |
20 | 2/2/1/0 | 25.0 (8.7-49.1) |
15.0 (3.2-37.9) |
20 | 1/1/3/1 | 30.0 (11.9-54.3) |
| Lwenabatwa (36) |
10 | 1/0/0 | 10.0 (0.3-44.5) |
23 | 6/2/1/0 | 39.1 (19.7-61.5) |
13.0 (2.8-33.6) |
22 | 2/2/3/6 | 59.1 (36.4-79.3) |
| TOTAL | 85 | 9/1/0 | 11.7 (5.8-20.6) |
104 | 15/6/2/0 | 22.1 (14.6-31.3) |
7.8 (3.3-14.6) |
102 | 8/10/12/13 | 39.2 (29.7-49.4) |
'Trace' read for CCA tests considered both as positive and negative. 'N' refers to the number of children surveyed by each diagnostic; 'L' stands for 'Light' infection intensity (< 100 eggs per gram of faeces [epg]), 'M' corresponds to 'Moderate' infection intensity (≥100 < 400 epg) and 'H' refers to 'Heavy' infection intensity (≥ 400 epg). 'tr' stands for trace reaction of CCA test, and '+', '++' and '+++' stand for single, double and triple strength reactions, respectively.