Table 4.

Blood smear microscopy at Primary Health Care (PHC) facilities: sensitivity by parasite density in the clinical algorithm + microscopy intervention arm

Parasite density levels per μl blood	Number of patients (N = 361)	Sensitivity (%)
< 1000	63	49.2 (CI: 41.3, 57.1)
1,000 – 4,999	119	66.4 (CI: 57.9, 74.9)
5,000 – 10,0000	153	87.6 (CI: 82.4, 92.8)
> 100,000	26	96.2 (CI: 93.1, 99.2)
Total	361*	74.5 (CI: 67.6, 81.4)

CI = (95% confidence interval).

*934 blood smears were reviewed at reference level, 361 positive blood smears