Table 3. Comparison of the recovery of parasites using sieves of 3 different pore sizes.

	No of ova per coverslip
Specimen Content	Sieve 1	Sieve 2	Sieve 3
	Parasep (425μm)	(800 μm x800 μm)	(2,000 μm x 1,000 μm)
Ascaris lumbricoides	453	355	36
Hookworm sp	27	21	2
Fasciola sp.	20	15	12
Schistosoma mansoni	10	5	2
Trichuris trichiura	51	43	6
Hymenolepis nana	5	1	0
	Sieve 1 vs Sieve 2	Sieve 1 vs Sieve 3	Sieve 2 vs Sieve 3
The Wilcoxon Matched-Pairs Signed-Ranks Test	p< = 0.005	p< = 0.005	p< = 0.005