Skip to main content

Table 1 Baseline characteristics of NHS participants

From: Factors associated with HIV viral load “blips” and the relationship between self-reported adherence and efavirenz blood levels on blip occurrence: a case–control study

Characteristic All Blip group Control group P value
Number, n 772 99 673  
Mean age at HIV diagnosis (years) 29.1 (12.6) 29.8 (12.4) 29.1 (12.8) 0.4881
Mean time from HIV negative to seroconversion (years) 0.6 (0.6) 0.7 (0.6) 0.6 (0.6) 0.1704
Mean time from seroconversion to first ART (years) 1.7 (2.5) 1.7 (2.8) 1.7 (2.5) 0.8564
Male 724 (93.8) 94 (94.9) 630 (93.6)  
Female 48 (6.2) 5 (5.1) 43 (6.4)  
Race     0.1599
 Caucasian 305 (39.5) 38 (38.4) 267 (39.7)  
 African-American 327 (42.4) 49 (49.5) 278 (41.3)  
 Other 140 (18.1) 12 (12.1) 128 (19.0)  
Mean CD4 count at HIV diagnosis (cells/µL) 437 (273) 432 (308) 439 (265) 0.2258
CD4 count at HIV diagnosis (cells/µL)     0.4664
 <350 214 (30.7) 33 (36.3) 181 (29.9)  
 350 to <500 213 (30.6) 25 (27.5) 188 (31.1)  
 ≥500 269 (38.6) 33 (36.3) 236 (39.0)  
Mean CD4 count at ART (cells/µL) 340 (194) 284 (190) 353 (189) 0.0002
CD4 count at ART (cells/µL)     0.0022
 <350 369 (52.1) 64 (68.1) 305 (49.7)  
 350 to <500 212 (29.9) 22 (23.4) 190 (30.9)  
 ≥500 127 (17.9) 8 (8.5) 119 (19.4)  
Mean viral load at ART (log10copies/mL) 4.5 (1.0) 4.8 (0.9) 4.5 (1.0) 0.0017
  1. Data expressed as N (%) or mean (SD)
  2. ART antiretroviral therapy