Structural variation of centromeric endogenous retroviruses in human populations and their impact on cutaneous T-cell lymphoma, Sézary syndrome, and HIV infection

Table 2 Frequency of Detection of K111 in DNA from individuals of different ethnic groups

Ethnicity	No. tested	−/− K111	Frequency of −/− K111 (%)	X ²	p value
Caucasian	180	29	16.11
English	96	13	13.54
American	64	12	18.75
Italian	10	3	30
Ashkenazi	10	1	10
African total	127	3	2.36	14.1415	0.000169*
South Sahara	9	0	0	1.65	ns
Pygmy	5	0	0	0.921	ns
Nigerian	113	3	2.65	12.1039	0.000503*
Asian total	54	12	22.22	1.2288	ns
Asian (MACS)	25	6	24	1.0872	ns
Chinese	10	2	20	0.0506	ns
Japanese	10	1	10	0.3408	ns
Southeast Russia	9	3	33.3	1.933	ns
Amerindian (MACS)	21	3	14.3	0.0255	ns
African American	39	3	7.6	1.82	ns

Stars indicate significantly decreased detection of the −/− K111 genotype in Africans, including Nigerian individuals, as compared with the Caucasian population. p values were calculated using the X² test

ISSN: 1755-8794