Table 2.

Comparison of Genetic Diversity Based on Microsatellite Markers in Duffy-Negative and Duffy-Positive Plasmodium vivax Infections

Study Site	Duffy Status	Sample Size	Genotypic Diversity			Gene Diversity
			G	D	E	N e	H e
Ethiopia
Arjo	Duffy positive	56	41	0.94	0.44	8.48	0.87
	Duffy negative	15	15	0.93	1	5.48	0.85
Bonga	Duffy positive	62	35	0.94	0.49	8.07	0.85
	Duffy negative	4	2	0.38	0.80	1.95	0.65
Jimma	Duffy positive	64	40	0.94	0.71	8.47	0.84
	Duffy negative	32	24	0.91	0.29	7.72	0.88
Total	Duffy positive	182	116	0.94	0.55	25	0.85
	Duffy negative	51	41	0.74	0.70	15	0.79
Sudan
Khartoum	Duffy positive	86	39	0.86	0.27	5.65	0.81
	Duffy negative	7	3	0.57	1	2.20	0.63
New Halfa	Duffy positive	36	22	0.83	0.27	8.00	0.88
	Duffy negative	2	1	0	1	1.13	0.13
River Nile	Duffy positive	33	19	0.88	0.43	7.00	0.86
	Duffy negative	15	6	0.60	0.42	5.82	0.91
Total	Duffy positive	155	80	0.86	0.32	20.65	0.85
	Duffy negative	24	10	0.39	0.81	9.15	0.56
P value		…	…	.025*	.076	.009*	.105

Statistical tests were performed between Duffy-positive and Duffy-negative individuals of all study sites. Asterisks indicate P values significant at  < .05.

Abbreviations: D, Simpson’s diversity index corrected for sample size; E, genotypic evenness; G, number of multilocus genotypes corrected for sample size; He, expected heterozygosity corrected for sample size [13]; Ne, number of effective alleles [35].