Table 3.

Day-to-day variability in scores using a) POC-CCA test and b) Kato-Katz smears for diagnosis of S. mansoni in children from Mwanza Region, Tanzania. Total number of children included = 404 (underlined).

a)
Day 3							Day 2
	Neg	Trace	+ 1	+ 2	+ 3	Total	Neg	Trace	+ 1	+ 2	+ 3	Total
Day 1
Neg	111	23	2	1	0	137	113	20	3	0	1	137
Trace	41	56	18	1	0	116	41	59	14	2	0	116
+ 1	2	24	14	16	3	59	6	15	29	8	1	59
+ 2	0	5	17	18	5	45	0	4	18	21	2	45
+ 3	0	0	1	6	40	47	0	0	3	13	31	47
Total	154	108	52	42	48	404	160	98	67	44	35	404
Day 2
Neg	131	27	2	0	0	160
Trace	22	59	14	3	0	98
+ 1	1	21	25	17	3	67
+ 2	0	1	10	19	14	44
+ 3	0	0	1	3	31	35
Total	154	108	52	42	48	404

b)
Day 3						Day 2
	Neg	Light	Moderate	Heavy	Total	Neg	Light	Moderate	Heavy	Total
Day 1
Neg	249	29	7	3	288	255	25	5	3	288
Light	44	36	4	0	84	52	28	3	1	84
Moderate	5	7	13	1	26	7	7	12	0	26
Heavy	0	1	3	2	6	0	2	0	4	6
Total	298	73	27	6	404	314	62	20	8	404
Day 2
Neg	270	37	6	1	314
Light	26	31	5	0	62
Moderate	1	4	14	1	20
Heavy	1	1	2	4	8
Total	298	73	27	6	404