Table 4.

Prevalence of intestinal parasites in Middle Eastern and South Asian refugees, 2001–2004 versus 2008–2010, diagnosed by stool microscopy^*

	2001–2004	%	2008–2010	%	P value
	Persons infected		Persons infected
Middle East	N = 132		N = 721
Protozoa	17	12.9%	52	7.2%	0.08
Helminths	3	2.3%	1	0.1%	0.01
South Asia	N = 167		N = 111
Protozoa	11	6.6%	33	29.7%	< 0.001
Helminths	18	10.8%	3	2.7%	0.02
Africa	N = 142		N = 120
Protozoa	16	11.3%	18	15.0%	0.37
Helminths	12	8.5%	5	4.2%	0.21
TOTAL	N = 533		N = 1232
Protozoa	51	9.6%	126	10.2%	0.67
Helminths	33	6.6%	28	2.3%	< 0.001

^*Eastern Europe, East Asia, and Southeast Asia comparisons not done because of insufficient participants and/or infected persons in one or both cohorts.