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. Author manuscript; available in PMC: 2017 Mar 1.
Published in final edited form as: J Clin Virol. 2016 Jan 2;76:8–13. doi: 10.1016/j.jcv.2015.12.011

Table 1.

Distribution of point-of-care and laboratory HIV test results among study participants, Seattle, 2010–2014

STD Clinic
n=2189		 Gay City
n = 1215		 PIC
n=341 		Total
n=34382
HIV-negative 21213 1176 1 3298
Total HIV Positive 68 (3.2%) 39 (3.2%) 33 140
  Concordant Reactive POC Tests 51 (75.0%) 31 (79.5%) 18 100
  Discordant POC Antibody Tests 7 (10.3%) 3 (7.6%) 13 23
  All POC Tests Negative/EIA-Positive 2 (2.9%) 4 (17.9%) 0 64
  Acute (EIA-Negative / NAAT-Positive) 85 (11.9%) 1 (2.6%) 26 11

PIC: University of Washington Primary Infection Clinic; POC: point-of-care; EIA: enzyme immunoassay; NAAT: nucleic acid amplification test

1

Participants at the UW PIC were referred because of suspicion or recent diagnosis of acute HIV infection.

2

Number of study visits. Subjects at the PHSKC STD Clinic and Gay City could participate quarterly.

3

Includes one participant with reactive EIA, indeterminate Western blot, and negative NAAT

4

Includes five participants screened by Determine Combo

5

Includes one participant with positive p24 antigen of four participants screened by Determine Combo

6

These participants had a negative Determine Combo, reactive ARCHITECT, negative Multispot HIV-1/HIV-2 Rapid Test and Western blot, and HIV RNA levels of 33,000 and 72,000 copies/mL.