Finally some real numbers to go by – Top vs Bottom and HIV

So its long been burning in my mind just how risky it is having unprotected anal intercourse when I’m the top, specifically in regards to HIV transmission.

Finally, I found some actual numbers.

So here it is:

If you’re the bottom and your top is HIV+ than you have a 1 in 50 chance of contracting HIV.
If your’e the top and your bottom is HIV+ than you have a 1 in 500 chance of transmission. Thats only about 10x safer for the top than the bottom if the partner carries the virus. Not particulary better odds if you ask me, so always use that condom. Make sure you really trust that the guy is telling you the truth before you decide to bareback it.

Ignorance is never an excuse. ;P



In reading some comments about that article, it still appears to have some debate. The CDC offers some actual precentages on their website and this information is apparently current as of January 2005 (remember this is the odds of contracting HIV from various sexual activities):

Table 1 in that report says odds of Anal bottom: 50 in 10,000 (i.e. 1 in 200 or 0.5%);
Anal top: 6.5 in 10,000 (1 in 1538 or .065%);
sucking (giving a blowjob): 1 in 10,000 (or 0.01%) ;
getting a blowjob: 1 in 20,000 (0.005%)

Odds of being struck by lightning in the US: 1 in 600,000

So you can see that nothing is 100% safe but certain activities are pretty low-risk. Everyone needs to make informed decisions about just how much risk they want to accept. Remember, that decision is for you to make, not your partner. Its your life, so keep control of it.

UPDATE #2 – 05/30/05

Another article on HIV I found of interest:

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