Table 2 |
|||
|
Performance of the HIV algorithm compared to HIV test results |
|||
|
n = 1064a |
Classified as suspected symptomatic HIV |
Identified as HIV exposed |
Any HIV classification (either HIV exposed OR suspected symptomatic HIV) |
|
|
|||
|
# |
171 |
201 |
313 |
|
|
|||
|
# confirmed HIV positive |
54 |
43 |
69 |
|
|
|||
|
Sensitivity (95% CI) |
71.1% (59.5% - 80.9%) |
56.6% (44.7% - 67.9%) |
90.8% (81.9% - 96.2%) |
|
|
|||
|
Specificity (95% CI) |
88.1% (85.9% - 90.1%) |
84.0% (81.6% - 86.2%) |
75.3% (72.5% - 77.9%) |
|
|
|||
|
PPV (95% CI) |
31.6% (24.7% - 39.15) |
21.4% (15.9% - 27.7%) |
22.0% (17.6% - 27.1%) |
|
|
|||
|
NPV (95% CI) |
97.5% (96.3% - 98.4%) |
96.2% (94.7% - 97.4%) |
99.1% (98.1% - 99.6%) |
|
|
|||
|
Likelihood ratio + (95% CI) |
5.99 (4.79 - 7.48) |
3.54 (2.77 - 4.51) |
3.67 (3.22 - 4.18) |
|
|
|||
|
a comprises all children where an HIV test result is known |
|||
|
Horwood et al. BMC Pediatrics 2009 9:59 doi:10.1186/1471-2431-9-59 |
|||
