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. Author manuscript; available in PMC: 2010 Jun 1.
Published in final edited form as: Sex Transm Dis. 2009 Jun;36(6):372–374. doi: 10.1097/OLQ.0b013e3181997252

TABLE 2.

Frequency and prevalence of STI co-infections by demographic factors among 75 patients with acute HIV in North Carolina

STI co-infection
at diagnosis Prevalence Prevalence Ratio
Characteristic
Yes No (95% CI) (95% CI)
(n=23 ) (n=52)
Gender and risk behavior
  Man who has sex with men 7 32 18.0% (7.5, 33.5) 0.34 (0.15, 0.76)
  Heterosexual man 6 11 35.3% (14.2, 61.7) 0.67 (0.31, 1.45)
  Female 10 9 52.6% (28.9, 75.6) Referent
Age (years)
  ≤ 25 13 20 39.4% (22.9, 57.9) 1.97 (0.74, 5.21)
  26–35 4 16 20.0% (5.7, 43.7) Referent
  ≥36 6 16 27.3% (10.7, 50.3) 1.36 (0.45, 4.14)
Race or ethnic background
  White, non-Hispanic 2 18 10.0% (1.2, 31.7) Referent
  Non-White 21 33 38.9% (25.9, 53.1) 3.89 (1.00, 15.10)
Testing Location
  HIV Counseling and Testing site 6 11 35.3% (14.2, 61.7) Referent
  STI Clinic 13 23 36.1% (20.8, 53.8) 1.01 (0.66, 1.55)
  Other type of clinic 4 18 18.2% (5.2, 40.3) 0.52 (0.17, 1.54)
History of injection drug use
  Yes 1 1 50.0% (1.3, 98.7) 1.66 (0.40, 6.93)
  No 22 51 30.1% (19.9, 42.0) Referent
Symptoms at or before testing
  Yes 11 34 24.4% (12.9, 39.5) 0.61 (0.31, 1.20)
  No 12 18 40.0% (22.7, 59.4) Referent

Note: Numbers may not add to 75 due to missing data.