Evaluation of the Performance of Health Extension Workers in HIV-1/2 Screening Tests: A Comparative Cross-Sectional Study, Addis Ababa, Ethiopia

Table 2

Comparing group performance of health extension workers with laboratory professionals on HIV rapid tests .

Groups	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)	Kappa agreement
HEWs	97.4 (97–100)	100	100	97.2	0.97 (0.9–1)
Lab. professionals	100	100	100	100	1

Against gold standard as assessed using ELISA, a. All laboratory personnel and twelve HEWs who did not have error results, b. Three HEWs who have made one error result in each.