Table 4.

The slide positivity rate and accuracy of routine malaria microscopy compared to expert microscopy, stratified by age categories

	Patients <5 years n/N,% (95% CI)	Patients ≥5 years n/N,% (95% CI)	All patients n/N,% (95% CI)
Slide positivity rate (routine microscopy)	20/48, 41.7 (25.7–57.5)	58/110, 52.7 (38.8–66.7)	78/158, 49.4 (36.7–62.1)
Slide positivity rate (expert microscopy)	17/48, 35.4 (21.2–49.6)	12/110, 10.9 (4.8–17.0)	29/158, 18.4 (12.5–24.2)
Sensitivity	9/17, 52.9 (24.2–81.7)	8/12, 66.7 (35.6–97.7)	17/29, 58.6 (38.4–78.9)
Specificity	20/31, 64.5 (44.7–84.3)	48/98, 49.0 (34.6–63.3)	68/129, 52.7 (39.2–66.2)
PPV	9/20, 45.0 (18.3–71.7)	8/58, 13.8 (4.7–22.9)	17/78, 21.8 (11.0–32.6)
NPV	20/28, 71.4 (53.5–89.3)	48/52, 92.3 (84.8–99.8)	68/80, 85.0 (78.9–91.1)