Table 3. Sensitivity (%) and 95% confidence intervals (95% CI) of the RDT performed in oral fluid, serum and whole blood samples from VL patients, according to the collection site.
| Locality (n) | Sensitivity% (n) | ||
|---|---|---|---|
| 95% CI | |||
| Oral fluid | Serum | Whole blood | |
| Campo Grande (27) | 88.9 (24) | 96.3 (26) | 96.3 (26) |
| 71.9–96.1 | 81.7–99.3 | 81.7–99.3 | |
| Bauru (16) | 81.2 (13) | 93.7 (15) | 93.7 (15) |
| 57.0–93.4 | 71.7–98.9 | 71.7–98.9 | |
| Aracaju (55) | 80.0 (44) | 90.9 (50) | 92.7 (51) |
| 67.6–88.4 | 80.4–96.0 | 82.7–97.1 | |
| Natal (30) | 43.3 (13) a c | 80.0 (24) | 80.0 (24) |
| 27.4–60.8 | 62.7–90.5 | 62.7–90.5 | |
| Total (128) | 73.4 (94) b | 89.8 (115) | 90.6 (116) |
| 65.2–80.3 | 83.4–94.0 | 84.3–94.6 | |
n–Number of samples.
a–p = 0.004 and.
b–p<0.001 (McNemar’s test) in relation to serum and whole blood.
c–p = 0.0003 (chi-square test) in relation to Campo Grande, Bauru and Aracaju.