Affordable flow cytometry for enumeration of absolute CD4+ T-lymphocytes to identify subtype C HIV-1 infected adults requiring antiretroviral therapy (ART) and monitoring response to ART in a resource-limited setting

Table 1 Correlation analysis of CD4⁺T-lymphocyte counts obtained by FACSCount and Cyflow

Study group	Mean difference CD4	SD	R²	y	Intercept	95% CI
All (N = 150)	1.21	20.40	0.991	0.998x + 1.807	1.807	-5.09 to 8.70
Subtype C drug resistance (N = 58)	2.40	18.11	0.987	1.0009x + 1.951	1.951	-15.46 to 19.36
Duke ART (N = 27)	-2.04	18.88	0.980	0.9628x + 15.708	15.708	-6.51 to 37.92
Kaposi Sarcoma ART (N = 65)	-0.18	15.77	0.994	0.9949x + 1.432	1.432	-5.83 to 8.70
Range of CD4 ⁺ T-lymphocytes	Mean difference CD4	SD	R ²	y	Intercept	95% CI
0–250 CD4⁺ cells/μL (N = 40)	2.60	11.94	0.967	0.9653x + 3.022	3.0216	-7.25 to 13.30
251–500 CD4⁺ cells/μL (N = 69)	0.96	19.59	0.898	0.9275x + 25.443	25.443	-2.64 to 53.53
501–1200 CD4⁺ cells/μL (N = 41)	0.29	27.49	0.968	0.9456x + 37.090	37.090	-2.04 to 76.24

ISSN: 1479-5876