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The latest monthly STD report from SF DPH was issued this week, and though the 2006 year-end numbers are provisional, they are still very noteworthy. Let's go over what I believe are truly incredible reductions and drops in HIV, STDs and meth-related visits to SF General Hospital's emergency room.

There is one important caveat to make before jumping into the HIV stats from City Clinic, the DPH's primary STD testing and treatment facility. The stats do NOT represent overall HIV stats for the city, but they are a vital surrogate marker in determining San Francisco's HIV transmission rate.

From the December 2006 monthly STD summary, issued on January 26:

HIV at City Clinic [Emphasis added.]

   The number of HIV tests performed at City Clinic decreased 5% from 2005 to 2006 and the number of positive antibody tests also decreased from 122 to 103, a 16% reduction. The number of acute HIV infections that were detected remained stable.

A sixteen-percent drop of HIV poz test results at the clinic were thousands of very at-risk and high-risk people go for testing is a good development, very much in keeping with the larger SF DPH trends showing HIV transmissions declining.

To play the devil's advocate for a moment, I wish to point out that the 16% total drop could be sliced by a 5% subtotal, representing the decrease in number of tests performed. If we deduct 5% decline in tests from the 16% total of poz results, we still have HIV at City Clinic falling in the double-digits: 11%.

Taking into account a decline in number of tests, there is still a very significant drop in infections.

Syphilis, Gonorrhea, Chlamydia for all of SF

   Reported cases of early syphilis (primary, secondary and early latent syphilis) and gonorrhea remained stable between 2005 and 2006, while chlamydia cases increased 9%.

   Rectal infections also continued to increase, with a 20% increase in [male] rectal gonorrhea cases and a 9% increase in [male] rectal chlamydia cases from 2005 to 2006.

   Our previous analyses, reported in the May report, suggest that these increass are largely explained by the expansion of rectal screening and improvements in test technology.

Nice. On top of the falling HIV rate, we have other STD either stable, or, where there is an increase, it is due to more and better tests. Sounds to me like something very right in controlling and preventing these diseases continues in SF.

Racial Breakdown of STDs

   When we compare preliminary STD rates for 2006 with 2005, gonorrhea rates have stabilized among African Americans, but there has been a 20% increase in chlamydia in this population.

   Chlamydia increased by 9% among whites and 5% among Hispanics, but decreased 3% among Asian/PIs. There continue to be disparities by race/ethnicity for STDs in San Francisco, with Asian/PIs having the lowest rates and African Americans the highest rates.

The DPH report does not mention if the increases in this section are because of increased testing or if the surge is due to more unsafe sex. However, it's welcome news to read that gonorrhea infections for blacks have remained steady; would be great if they'd go down.

Meth-related Visits to SF General Hospital ER

The DPH monthly summary unfortunately does not offer an editorial note on speed-related visits to the main hospital, but Table 4 provides the raw data:

   2005 Male Visits to the ER: 716
   2005 Female Visits to the ER: 144
   Subtotal: 860

   2006 Male Visits to the ER: 488
   2006 Female Visits to the ER: 113
   Subtotal: 601

   Decrease of 30%.

My comparison of 2005 ER visits with the 2006 number shows a 30% drop. Nice reduction, wouldn't you say?

Let's see if the press report on the new declining HIV and STD rates and meth-associated visits to the ER, and if the DPH puts some efforts into calling reporters' and community attention to the stats.

Click here to read the new SF DPH STD report.

Originally posted to MPetrelis on Sun Feb 04, 2007 at 11:12 AM PST.


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Comment Preferences

  •  Excellent news ~ (0+ / 0-)

     It's always great to see some good news and I also wonder if this will be picked up by MSM. Rather doubt it, which makes your diary all the more valuable ~
     Thanks !

    "if your toes each represent one trillion dollars, then each little piggy is fucking screwed!!" BiPM

    by Dvalkure on Sun Feb 04, 2007 at 11:40:36 AM PST

  •  please interpret (0+ / 0-)

    Can you explain for us non-medical folks what these statistics mean?  Does it mean fewer people are getting HIV in SF?  Or does it mean the diagnostic criteria have changed?  Or could it be that more HIV suffers are uninsured and are dying in the streets instead of getting diagnosis and treatment (hopefully not)?  If the HIV decrease is genuine does it mean that people are getting more careful about unsafe sex?  Or have they been indoctrinated by the religious right into miserable lives of repressed sexuality leading to Republicanism and launching of wars causing more fatalities than the HIV itself could have caused?

    Not saying any of the above are happening, I just see all these raw numbers and have no idea how to interpret them and am noting there's a wide range of theoretical possibilities.  Some cultural context would be much appreciated.

  •  So far as I can tell (0+ / 0-)

    your math is off when you interpret the decrease in both HIV tests and positive results above.  

    What would be telling is if there were a drop in the rate of positive (ie, percentage of tests that are positive), not Without knowing how many people go there to get tested, a drop in both the number of tests and the number of positives could represent a large drop in the positive rate, a much smaller drop than the 11% you mention, or actually in increase.

    Like so:  if there were 500 tests done in 2005, the positive rate would be 122/500, or 24.4%.  The new rate would be 103/475, or 21.7%.  A drop, but not a thrilling one.  If there were 1000 tests in 2005 and 950 in 2006, the rate would have dropped from 12.2% to 10.8%.  And if there were 1500 tests in 2005 (and 1425 in 2006), that would mean the infection/positive test rate actually went up - from 7.2% to 8.1%.  

    Sorry if I'm missing something - let me know if I am.  

  •  Great news (0+ / 0-)

    especially about the meth use, as long as those numbers continue to fall, the hiv rates will follow. As a gay man in the castro, I see the decline in meth everywhere. It is nice to see stats to back it up..

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