Table 3.

Relation of positive filarial antigen test results (ICT) with L. loa and M. perstans Mf count

Mf density (Mf/mL)	ICT negative		ICT positive		ICT invalid		Total N
	N	Percent	N	Percent	N	Percent
L. loa
0	2,065	97.59	37	1.75	14	0.66	2,116
1–100	206	91.56	18	8.00	1	0.44	225
101–2,000	240	76.68	72	23.00	1	0.32	313
> 2,000	29	41.43	41	58.57	0	0	70
Total	2,540	93.25	168	6.17	16	0.58	2,724
M. perstans
0	673	95.33	29	4.10	4	0.57	706
1–100	270	94.07	17	5.92	0	0	287
101–2,000	740	90.13	77	9.38	4	0.49	821
> 2,000	282	88.96	33	10.41	2	0.63	317
Total	1,965*	92.21	156*	7.32	10*	0.47	2,131*

Mf were counted on a single 60-μL night blood smear, and counts were converted to Mf per milliliter.

^*M. perstans Mf counts were not available for all M. perstans Mf-positive individuals. Slides from 593 M. perstans Mf-positive and L. loa Mf-negative subjects from six villages were not counted.