Table 14. Sensitivity, specificity, and predictive values for antibody tests.
PanLF | Bm14 | Urine SXP | |||||
Rate | 95% Confidence Interval | Rate | 95% Confidence Interval | Rate | 95% Confidence Interval | ||
All Countries | |||||||
Sensitivity | 73.2 (82) | (63.5, 82.8) | 81.1 (74) | (72.2, 90.0) | 54.5 (77) | (43.4, 65.7) | |
Neg. Predictive Value | 99.1 (2390) | (98.7, 99.5) | 98.2 (790) | (97.3, 99.1) | 97.7 (1522) | (96.9, 98.5) | |
French Polynesia | |||||||
Sensitivity | 76.9 (26) | (60.7, 93.1) | 92.3 (26) | (82.1, 100) | 92.3 (26) | (82.1, 102.6) | |
Neg. Predictive Value | 99.1 (675) | (98.4, 99.8) | 99.5 (438) | (98.9, 100) | 99.6 (539) | (99.1, 100) | |
Ghana | |||||||
Sensitivity | – | – | 50.0 (16) | (25.5, 74.5) | – | – | |
Neg. Predictive Value | – | – | 98.8 (680) | (98.0, 99.6) | – | – | |
Haiti | |||||||
Sensitivity | 70.8 (48) | (58.0, 83.7) | 75.0 (48) | (62.8, 87.2) | 31.9 (47) | (18.6, 45.2) | |
Neg. Predictive Value | 96.8 (447) | (95.3, 98.5) | 96.6 (336) | (94.7, 98.5) | 94.2 (554) | (92.3, 96.2) | |
Sri Lanka | |||||||
Sensitivity | 66.7 (3) | (13.3, 100) | – | – | – | – | |
Neg. Predictive Value | 99.9 (684) | (99.6, 100) | – | – | – | – | |
Tuvalu | |||||||
Sensitivity | 50.0 (2) | (0, 100) | – | – | 50.0 (2) | (0, 100) | |
Neg. Predictive Value | 99.8 (548) | (99.5, 100) | – | – | 99.7 (396) | (99.3, 100) | |
Zanzibar | |||||||
Sensitivity | – | – | – | – | 42.9 (7) | (6.2, 79.5) | |
Neg. Predictive Value | – | – | – | – | 99.3 (565) | (98.6, 100) |
Definition of antibody test accuracy.
’True Positive’: Blood Smear or PCR (+).
‘True Negative’: Blood Smear and PCR not (+); ICT and Og4C3 not (+).