Hi:

I am looking for any survey where more than 10000 people participated,
in which the question is asked, if men uses potence medication (either
Viagra, Levitra or Cialis). I looked already on the CDC website
http://www.cdc.gov/nchs/hus.htm but then I ran out of time. The survey
can be from any country.

Thanks

Hi feido,

Here you go. The MALES study questioned 27,839 men in eight countries
and is reportedly one of the largest studies of its kind. I've copied
and pasted a few relevant sections but please click on the links for
full details (my last link is to the full article with the most info).

The multinational Men's Attitudes to Life Events and Sexuality (MALES)
study: I. Prevalence of erectile dysfunction and related health
concerns in the general population.
"OBJECTIVE: The aims of the Men's Attitudes to Life Events and
Sexuality (MALES) study were to identify prevalence of erectile
dysfunction (ED) and related health issues in the general male
population in Europe, North and South America, and to examine the
attitudes and behavior of men in relation to these health issues.
RESEARCH DESIGN AND METHODS: Phase I of the MALES study involved 27839
men aged 20-75 years who were interviewed in eight countries (United
States, United Kingdom, Germany,France, Italy, Spain, Mexico, and
Brazil) using a standardized questionnaire. Phase II of the MALES
study involved 2912 men who were recruited from the sub-sample of
Phase I MALES participants who reported ED together with additional
men"
"Despite the advent of oral phosphodiesterase inhibitors, only 58% of
ED sufferers consult a physician about their problem, and only 16% of
men with self-reported ED maintain their use of oral therapy."
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=15171225&dopt=Citation

"This issue of Current Medical Research and Opinion includes the Men's
Attitudes to Life Events and Sexuality (MALES) study which provides
information regarding the prevalence of ED and related health
matters.[3] This is one of the largest epidemiological studies in this
field; it included 27839 patients spanning over eight countries. The
study found an overall prevalence of self-reported ED of 16% in men
aged 20-75 years. Differences were noted between the various
countries, with the highest prevalence seen among men in the US (22%)
and the lowest in Spain (10%). The study confirmed the increased
prevalence of ED with both increasing age, and other co-morbid
conditions (hypertension, diabetes, ischaemic heart disease,
hypercholesterolaemia and depression) as noted in earlier
studies.[4,5]
It is interesting, therefore, that the MALES II study[3] highlights a
discrepancy between the use of sildenafil [Viagra] and its efficacy
and convenience. Only 58% of the 2912 men who self-reported ED
actively sought attention for their condition. Only 41% of the men in
this group discussed possible treatment with sildenafil, with only 25%
of them filling their prescription for the drug. Only 16% of this
group were still taking sildenafil at the time of the survey. This
'cascade effect' is larger than expected, taking into account the
profile of the oral PDE5 inhibitors. While there are issues regarding
the treatment-seeking behaviour and treatment adherence that future
analyses of the MALES II data will reveal, there are some possible
explanations for the discontinued use of sildenafil with time."
http://www.medscape.com/viewarticle/477665

Dr McCabe's research will build on the recently published and largest
international study of its kind, MALES (Men's Attitudes to Life Events
and Sexuality), which found 58% of men who self-reported ED asked
their doctor for help. Of those who did, half received a prescription
and only 16 percent continued to take their prescribed medication"
http://www.gsk.com.au/gskinternet/publishing.nsf/Content/28Jul04-Let%E2%80%99sTalkAboutSex

Original Article
The multinational Men's Attitudes to Life Events and Sexuality (MALES)
study: I. Prevalence of erectile dysfunction and related health
concerns in the general population.
Rosen RC, Fisher WA, Eardley I, Niederberger C, Nadel A, Sand M; 
http://www.ingentaconnect.com/search/download?pub=infobike%3a%2f%2flibra%2fcmro%2f2004%2f00000020%2f00000005%2fart00006&mimetype=application%2fpdf

I'm confident that this is what you are looking for but if not, or if
you have any questions, please post a clarification request and wait
for me to respond before closing/rating my answer.

Thank you,
hummer

Google Search Terms Used:

"males study"
worldwide survey men ed medication
survey nationwide men impotence
survey men sildenafil use

Thanks, that is exactly what I was looking for ! 

If in addition you had provided the web-links to some of the
researchers who designed the study or analyzed the data, then the tip
would be more generous.
But overall, you exactly provided what I was looking for. 

Many thanks...Hendrik

Dear Hendrik,

Thank you so much for your nice note, rating, and tip. I was very glad
when I found out about the MALES study because it sounded almost too
good to be true! In regards to the additional links, I had no way to
know that you wanted them and it would've been a good idea to mention
it in your original question or to post a Question Clarification
before closing and rating the question.  At any rate, I'm happy you
are happy.

Sincerely,
hummer

Thanks, for the comment. I am new to this service and I did not know
that I can extend the procedure for more questions before closing it.
In case I need more information: Shall I come back to you using this
website? or shall I write ot you directly to your personal email?
Which is that?

Thanks, Feido

Hi Feido,

The "clarification" option isn't there to ask "more questions" but
rather to provide a means to work together on the original question.
In regards to your original question, it would've been ok to post a
clarification request to ask me to find additional links if possible
(with the promise of a larger tip, given that it wasn't part of the
original question), but the rating or tipping for the original
question shouldn't have been subsequently reduced if the links could
not be found.

If you need a clarification, you can still post a clarification
request as long as it directly relates to the original question,
otherwise, it is really considered completed and you'll have to post a
new question for more information. GA policies prohibit researchers
from communicating with questioners privately, so neither of us can
post our email addresses here.

Regards,
hummer