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HIV Health and Treatment Issues >> Treatment & Side Effects

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Bear60
Legend

Reged: 12/21/05
Posts: 1390
Do you know what a LOG is?
      #200239 - 07/16/06 09:42 AM



What's in a log?

Viral load can be expressed as a NUMBER or a LOG VALUE. A log is the number of times ten must be multiplied with itself to equal a certain number. For example, log 2 = 100 (10 x 10), log 5 is 100,000 (10 x 10 x 10 x 10 x 10).

Dividing a number by 10 is the same as a 1 log drop.

When comparing big numbers, it's sometimes easier to use logs because what looks like a massive change is in fact relatively small. For example: A viral load of 800,000 is log 5.9, 80,000 is log 4.9. So you's thinking "Wow! a massive drop in virus!" But in log terms it's the same as a drop from 500 (log 2.7) to 50 (log 1.7), which in number terms don't seems as grand as losing 720,000 of the little buggers does it...

A change in viral load of 0.5 log is significant.

You can convert a number into a log value by entering "log(THE NUMBER)" into the Google search box, for example enter "log(50)" and press RETURN and you will give you the result "log(50) = 1.69897".

HANDY LOG TABLE
Viral load is... Log value...
50 1.7
100 2
330 2.5
500 2.7
800 2.9
1,000 3
3,300 3.5
5,000 3.7
8,000 3.9
33,000 4.5
50,000 4.7
80,000 4.9
500,000 5.7
800,000 5.9
1 million 6




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MiamiLat
Guardian

Reged: 12/30/05
Posts: 396
Loc: Miami, FL
Re: Do you know what a LOG is? new
      #200282 - 07/16/06 08:08 PM

Ughh, I hate math!

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"Education, prevention, awareness, research, and support"

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alivehoping
Legend

Reged: 04/05/06
Posts: 655
Re: Do you know what a LOG is? new
      #200438 - 07/18/06 06:54 AM

to much math for me i will always ask the doc the bottom line it seems easier,besides they get the big bucks so they can use their calculater for me.and as far as a log, i thought it was for the fireplace on cold winter nights.lol

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AIDS2HIV
Legend

Reged: 12/19/05
Posts: 2200
Re: Do you know what a LOG is? new
      #200441 - 07/18/06 07:09 AM

a log is something in my toilet , often hard to flush*



sorry Bear....i just couldnt resist*

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alivehoping
Legend

Reged: 04/05/06
Posts: 655
Re: Do you know what a LOG is? new
      #200445 - 07/18/06 07:17 AM

oh boy,i thought that was called pinching a loaf?lol

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eleniel
Guru

Reged: 05/27/06
Posts: 239
Loc: Utah, USA
Re: Do you know what a LOG is? new
      #200709 - 07/20/06 01:41 AM

so how much did my VL increase by when it jumped from 670 to 3000? Math gives me horrible headaches...

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6/29/2010: vl 68,000 cd4: 205

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