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. 2012 Apr 20;7(4):e33014. doi: 10.1371/journal.pone.0033014

Table 3. Health center microscopy compared to expert microscopy: P.falciparum infection only.

Health center Sensitivity % (95%CI) Specificity % (95%CI) Positive predictive value % (95%CI) Negative predictive value % (95%CI)
Shinfa 93.3 (85.1–97.8) 98.4 (94.3–99.8) 97.2 (90.3–99.7) 96.1 (91.1–98.7)
Ambessame 93.6 (82.5–98.7) 100.0 (97.6–100.0) 100.0 (91.9–100) 98.1 (94.5–99.6)
Kola Diba 89.5 (78.5–96.0) 98.6 (95.0–99.8) 96.2 (87.0–99.5) 95.9 (99.3–98.5)
Kokit 89.5 (75.2–97.1) 100.0 (97.6–100) 100.0 (89.7–100) 97.6 (93.9–99.3)
Woreta 85.7 (57.2–98.2) 98.4 (95.4–99.7) 80.0 (51.9–95.7) 98.9 (96.1–99.9)
Deligi 100.0 (66.4–100) 98.9 (96.2–99.8) 81.8 (48.2–99.7) 100.0 (98.5–100.0)
Alember 30.0 (6.7–65.3) 100.0 (98.1–100) 100.0 (29.2–100) 96.5 (92.8–98.6)
Yejube 20.0 (0.5–71.6) 99.5 (97.2–99.9) 50.0 (1.3–98.7) 97.9 (94.9–99.5)
Meruto Lemariam 100.0 (79.4–100) 100.0 (98.0–100) 100.0 (79.4–100) 100.0 (98.0–100)
Jiga 0.0 100.0 (98.1–100) 0.0 98.5 (95.7–99.7)
TOTAL 87.6 (83.1–91.3) 99.4 (98.9–99.7) 96.0 (92.8–98.1) 98.1 (97.3–98.7)