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Jorge and others,

If you look again closely at the HealthScout homepage you will see the
"Advertisment" tag refers to the banner directly underneath it -- not to
the report itself.
HealthScout is a health news portal - one of  many that collects news
from many different sources, some reliable, others not so - then
repackages it for the consumer. Their web sites are a mix of news
reports, links to valuable information sources and also to "sponsors" and
advertisements - and it's difficult to tell what's what.

When in doubt - go to the original source -- if you are able to find it
and it's freely available on the Web.
In this case the full article is on the JAMA website www.jama.com  (as of
6 AM today)
The abstract is below. This study was conducted by highly regarded PD
researchers and published by JAMA, a peer reviewed medical journal
originally.

Also note at the end of most reputable medical journal articles is a
funding statement - who supported the research and how the funder was
involved. Drug companies often do sponsor such research, but there are
controls over their involvement as in this study. (see below)  Also
included are the affiliations and sponoring institution of the
investigators - another way to evaluate the study.
It's getting more and more difficult on the Web to separate the medical
facts from the media hype and from the advertising. Our best weapon is to
 Know your source.
Linda
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FROM Journal of the American Medical Association Online :
Excessive Daytime Sleepiness and Sudden-Onset Sleep in Parkinson Disease


A Survey by the Canadian Movement Disorders Group

  Douglas E. Hobson, MD, FRCPC; Anthony E. Lang, MD, FRCPC; W. R. Wayne
Martin, MD, FRCPC; Ajmal Razmy, BSc; Jean Rivest, MD, FRCPC; Jonathan
Fleming, MD, FRCPC

Excessive Daytime Sleepiness and Sudden-Onset Sleep in Parkinson Disease


A Survey by the Canadian Movement Disorders Group

  Douglas E. Hobson, MD, FRCPC; Anthony E. Lang, MD, FRCPC; W. R. Wayne
Martin, MD, FRCPC; Ajmal Razmy, BSc; Jean Rivest, MD, FRCPC; Jonathan
Fleming, MD, FRCPC


Context  Somnolence is a recognized adverse effect of dopamine agonists.
Two new dopamine agonists, pramipexole and ropinirole, have been reported
to cause sudden-onset sleep spells in patients with Parkinson disease
(PD) while they were driving. The frequency of these spells and whether
driving should be restricted has yet to be established.

Objective  To determine the frequency of and predictors for sudden-onset
sleep and, particularly, episodes of falling asleep while driving among
patients with PD.

Design, Setting, and Participants  Prospective survey conducted between
January and April 2000 in 18 clinics directed by members of the Canadian
Movement Disorders Group; 638 consecutive highly functional PD patients
without dementia were enrolled, of whom 420 were currently drivers.

Main Outcome Measures  Excessive daytime sleepiness and sudden-onset
sleep as assessed by the Epworth Sleepiness Scale and the Inappropriate
Sleep Composite Score. The latter score, designed for this study,
addressed falling asleep in unusual circumstances. The 2 scales were
combined in 3 separate formats: dozing off, sudden unexpected sleep, and
sudden blank spells.

Results  Excessive daytime sleepiness was present overall in 327 (51%) of
the 638 patients and in 213 (51%) of the 420 drivers. Patients taking a
variety of different dopamine agonists had no differences in Epworth
sleepiness scores, in the composite score, or in the risk of falling
asleep while driving. Sixteen patients (3.8%) had experienced at least 1
episode of sudden onset of sleep while driving (after the diagnosis of
PD); in 3 (0.7%), it occurred without warning. The 2 risk factors
associated with falling asleep at the wheel were the Epworth Sleepiness
Scale score (odds ratio [OR], 1.14; 95% confidence interval [CI],
1.06-1.24) and the Inappropriate Sleep Composite Score (OR, 2.54; 95% CI,
1.76-3.66). A standard Epworth Sleepiness Scale score of 7 or higher
predicted 75% of episodes of sleep behind the wheel at a specificity of
50% (exclusion of the question related to driving provided 70%
sensitivity and 52% specificity), whereas a score of 1 on the
Inappropriate Sleep Composite Score generated a sensitivity of 52% and
specificity of 82%.

Conclusions  Excessive daytime sleepiness is common even in patients with
PD who are independent and do not have dementia. Sudden-onset sleep
without warning is infrequent. The Epworth score has adequate sensitivity
for predicting prior episodes of falling asleep while driving and its
specificity can be increased by use of the Inappropriate Sleep Composite
Score. It is unknown if routinely performing these assessments could be
more effective in predicting future risk for these rare sleep attacks.
Patients should be warned not to drive if they doze in unusual
circumstances.

JAMA. 2002;287:455-463


...."Funding/Support: Boehringer-Ingelheim (Canada) Ltd provided an
unrestricted educational grant for the conduct of this study.

Role of the Sponsor: Support for this survey was provided through
Boehringer-Ingelheim (Canada) Ltd. This sponsor was approached by one of
the authors (A. E. L.) to provide an unrestricted grant to carry out the
study. The sponsor assisted in the logistics of developing the study
(conference calls between investigators), development of the
questionnaire forms, teaching sessions for the study centers (by the
authors), and provision of funding (on a per subject basis) to the sites.
Data were submitted by the sites to an independent third party where they
were keyed into the database and checked. The third party communicated
directly with the investigators (not the sponsor) about the data. The
sponsor did not have access to the data and did not assist in data
analysis."

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