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. Author manuscript; available in PMC: 2012 Apr 5.
Published in final edited form as: HIV Clin Trials. 2011 Mar-Apr;12(2):79–88. doi: 10.1310/hct1202-79

Table 2.

Subject Characteristics

Total
(n=287)		 Cases
(n=104)		 Controls
(n=183)		 P value*
Sex M 250 (87%) 90 (87%) 160 (87%) N/A
Race/ethnicity W 144 (50%) 54 (52%) 90 (49%) 0.56
B 73 (25%) 30 (29%) 43 (23%)
H 60 (21%) 18 (17%) 42 (23%)
Age in years
(median)
(Q1, Q3)		 39
(33, 44)		 39
(33, 44)		 39
(33, 44)		 0.48
Entry HIV-1 RNA
(median)
(Q1, Q3)		 83,653
copies/mL
(17662,
377637)		 204,913
copies/mL
(21294,
454654)		 56,885
copies/mL
(14622, 247378)		 0.03
Entry CD4 (median)
(Q1, Q3)		 194 cells/mm3
(67, 332)		 117 cells/mm3
(27, 242)		 235 cells/mm3
(98, 362)		 <0.0001
Proximal HIV-1 RNA
(median)
(Q1, Q3)		 17,270
copies/mL
(2881, 68409)		 45,022
copies/mL
(8514, 308449)		 8,785
copies/mL
(1726, 44041)		 0.009
Proximal CD4
(median)
(Q1, Q3)		 291 cells/mm3
(121, 465)		 119 cells/mm3
(46, 300)		 333 cells/mm3
(251, 580)		 <0.0001

P-values were derived from the conditional logistic regression model. N/A = Not Applicable as sex was a matching factor.