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Table 2 Transmission risk perceptions in different situations (cases and controls)

From: Conversation about Serostatus decreases risk of acquiring HIV: results from a case control study comparing MSM with recent HIV infection and HIV negative controls

  High Medium Low No risk Don’t know
Everyday contact      
  Cases 1% (n = 1) 1% (n = 1) 12% (n = 13) 85% (n = 89) 1% (n = 1)
  Controls 4% (n = 4) 1% (n = 1) 23% (n = 24) 71% (n = 75) 1% (n = 1)
Needle sharing      
  Cases 98% (n = 103) 1% (n = 1) 0% (n = 0) 0% (n = 0) 1% (n = 1)
  Controls 98% (n = 103) 1% (n = 1) 0% (n = 0) 0% (n = 0) 1% (n = 1)
Unprotected receptive anal sex with ejaculation      
  Cases 97% (n = 102) 3% (n = 3) 0% (n = 0) 0% (n = 0) 0% (n = 0)
  Controls 94% (n = 99) 5% (n = 5) 0% (n = 0) 0% (n = 0) 1% (n = 1)
Unprotected receptive anal sex without ejaculation      
  Cases 53% (n = 53) 34% (n = 36) 9% (n = 9) 0% (n = 0) 2% (n = 2)
  Controls 51% (n = 54) 35% (n = 35) 11% (n = 12) 1% (n = 1) 1% (n = 1)
Unprotected insertive anal sex      
  Cases 60% (n = 59) 30% (n = 30) 9% (n = 9) 1% (n = 1) 1% (n = 1)
  Controls 58% (n = 60) 30% (n = 29) 8% (n = 8) 2% (n = 2) 2% (n = 2)
Unprotected receptive oral sex without ejaculation      
  Cases 15% (n = 15) 41% (n = 41) 35% (n = 35) 7% (n = 7) 1% (n = 1)
  Controls 10% (n = 10) 23% (n = 22) 57% (n = 55) 8% (n = 8) 2% (n = 2)
Unprotected receptive oral sex with ejaculation      
  Cases 74% (n = 73) 22% (n = 22) 4% (n = 4) 0% (n = 0) 0% (n = 0)
  Controls 56% (n = 54) 34% (n = 33) 9% (n = 9) 0% (n = 0) 1% (n = 1)
Unprotected insertive oral sex      
  Cases 20% (n = 21) 26% (n = 26) 40% (n = 40) 9% (n = 9) 3% (n = 3)
  Controls 14% (n = 15) 25% (n = 26) 45% (n = 44) 13% (n = 13) 3% (n = 5)