Releases Saturday 2 August 2003
No 7409 Volume 327

Please remember to credit the BMJ as source when publicising an
article and to tell your readers that they can read its full text on the
journal's web site (http://bmj.com).

If your story is posted on a website please include a link back to
the source BMJ article (URL's are given under titles).


(1) BANNING SMOKING AT HOME PROTECTS
INFANTS

(2) RADICAL SOLUTIONS FOUND TO MEET
LIMITS ON JUNIOR DOCTORS' HOURS

(3) WHY DO PATIENTS CHOOSE NOT TO DONATE
TISSUE?

(4) EXPERT REVIEWS CANNOT BE TRUSTED



(1) BANNING SMOKING AT HOME PROTECTS
INFANTS

(Effect of strategies to reduce exposure of infants to
environmental tobacco smoke in the home: cross
sectional survey)
http://bmj.com/cgi/content/full/327/7409/257

Banning smoking in the home leads to a small but
meaningful fall in infant exposure to environmental
tobacco smoke, whereas less strict measures have no
effect, finds a study in this week's BMJ.

Parents from 314 households with young infants took
part in the study. Parents were interviewed at home
about their knowledge and use of harm reduction
strategies, tobacco consumption, and details of the home
environment. A sample of the infant's urine was taken to
measure levels of cotinine (a by-product of nicotine) and
creatinine.

Over 80% of parents believed that environmental
tobacco smoke is harmful and 90% believed that infants
can be protected from it in the home. Only one in 10
parents was unaware of any measures to reduce
exposure. More than half the parents reported using
more than one measure. Just under a fifth reported
banning smoking in the home.

Banning smoking in the home was associated with a
small but significant reduction in cotinine levels, whereas
less strict or no measures had no effect on exposure of
infants.

Despite some limitations, these results suggest that
banning smoking at home significantly reduces infant
exposure to environmental tobacco smoke, say the
authors. Less strict measures, such as opening windows
when smoking and using fans, are likely to have little
effect on the exposure of infants, but this requires
verification.

Contacts:

Nick Spencer, Professor of Child Health or Alan Dolan,
Lecturer, School of Health and Social Studies,
University of Warwick, UK
Email: n.j.spencer@warwick.ac.uk;
a.dolan@warwick.ac.uk

(2) RADICAL SOLUTIONS FOUND TO MEET
LIMITS ON JUNIOR DOCTORS' HOURS

(Improving compliance with requirements on junior
doctors' hours)
http://bmj.com/cgi/content/full/327/7409/270

This Friday (1 August 2003) UK regulations on junior
doctors' working hours become a contractual right, but
meeting these regulations will need radical solutions,
argue researchers in this week's BMJ.

The team, based at Great Ormond Street Hospital for
Children, set out to redesign the night rota to improve
compliance with regulations on working hours, without
compromising patient care, medical training, or quality of
life of the junior doctors.

They created a new type of senior nurse labelled 'clinical
site practitioners' (CSP) with a unique role. Under the
new structure CSPs provide leadership, expert clinical
advice and management support through a rapid
response service to all areas of the hospital, 24 hours a
day, seven days a week. The CSP's found that they
could manage 70% of calls that traditionally would have
been answered by a doctor.

Before the study, night cover was provided through
partial shift rotas involving 11 doctors and one senior
nurse. Instead, they introduced a full night shift team
comprising three middle grade doctors, two senior
nurses (CSPs), and a fourth sleeping doctor as back-up
for emergencies.

The new rota increased compliance with regulations on
working hours from 33% to 77%. Workload changed
little and was well within the capacity of the new night
team. Most staff were happy with the new rota and the
safety of patients was not compromised.

Meeting requirements on junior doctors' hours cannot be
achieved by manipulating rotas that maintain existing tiers
of cover and work practices, say the authors. They
require changes to roles, processes, work practices and
attitudes throughout the organisation.

Whilst the authors are committed to achieving safe hours
for junior doctors, they also warn that the current
inflexible systems for monitoring compliance with targets
are putting professionalism at risk.

Contact:

Hilary Cass, Director of Postgraduate Medical
Education, Great Ormond Street Hospital for Children
NHS Trust, London, UK
Email: cassh@gosh.nhs.uk

(3) WHY DO PATIENTS CHOOSE NOT TO DONATE
TISSUE?

(Why surgical patients do not donate tissue for
commercial research: review of records)
http://bmj.com/cgi/content/full/327/7409/262

When patients have adequate information, donating
surgically removed human tissue to commercial research
is not a contentious issue, finds a study in this week's
BMJ.

At Peterborough District Hospital, a trained nurse
interviews patients before their operation and, with
consent, surplus tissue is collected and supplied for
commercial research.

Researchers reviewed 3,140 interviews and recorded
reasons why patients refused to donate tissue, and
whether involvement of commercial companies was an
influencing factor.

Overall, 38 patients refused to allow their tissue to be
used for commercial research. Only two patients cited
commercial involvement as the main reason for refusal.
Other reasons included incidents at Alder Hey and
Bristol, extreme anxiety, and perceived lack of time to
make a decision.

Patients awaiting surgery are often pleased and even
grateful to have been given an opportunity to play a part
in research, which could in the future possibly benefit
other people including their family, say the authors. A
minority of patients will always be hostile, difficult to
communicate with, or apprehensive about forthcoming
surgery and will choose not to donate tissue.

Contact:

Ann McHugh, Communications Manager, Peterborough
Hospital NHS Trust, UK
Email: ann.mchugh@ pbh-tr.nhs.uk

(4) EXPERT REVIEWS CANNOT BE TRUSTED

(What happened to the valid POEMS? A survey of
review articles on the treatment of type 2 diabetes)
http://bmj.com/cgi/content/full/327/7409/266

The results of the most important research in diabetes in
the past 25 years have not been conveyed accurately to
doctors, claim researchers in this week's BMJ.

These findings have far reaching implications for how the
current medical information system transmits new
research results from academia to practitioners.

Thirty five reviews on treatment of type 2 diabetes were
analysed to evaluate how experts represented the results
of the United Kingdom prospective diabetes study
(UKPDS).

Only six of the reviews included the finding that tight
blood sugar control had no effect on overall or
diabetes-related mortality. Just seven mentioned that
giving the drug metformin was associated with decreased
mortality.

Almost half (17) of the reviews did not mention the need
for blood pressure control, while only five pointed out
that diabetic patients with high blood pressure benefit
more from blood pressure control than blood sugar
control.

The current system of transmitting new research to
clinicians by means of reviews is less than optimal, at
least for new important research in type 2 diabetes, say
the authors. Clinicians relying on these information
sources for accurate clinical information may be misled,
they conclude.

The faults of expert reviews are already well known,
argues David Fitzmaurice in an accompanying
commentary.

He agrees that review articles, particularly those written
by specialists, tend to be of dubious value, but say that
most UK primary care physicians are aware of the key
messages in the UKPDS study. "We should perhaps
question why these expert reviews continue to be
published, given both their lack of rigour and their
apparent lack of influence," he concludes.

Contacts:

Paper: Allen Shaughnessy, Director of Medical
Education, PinnacleHealth System, Professor of Family
Medicine, Penn State University School of Medicine,
Pennsylvania, USA
Email: ashaughnessy@PinnacleHealth.org

or

David Slawson, Professor of Family Medicine,
University of Virginia, Charlottesville, Virginia, USA
Email: dslawson@virginia.edu

Commentary: David Fitzmaurice, Department of Primary
Care and General Practice, Medical School, University
of Birmingham, UK
Email: d.a.fitzmaurice@bham.ac.uk


FOR ACCREDITED JOURNALISTS

Embargoed press releases and articles are available from:

Public Affairs Division
BMA House
Tavistock Square
London WC1H 9JR
(contact: pressoffice@bma.org.uk)

and from:

the EurekAlert website, run by the American Association for the
Advancement of Science
(http://www.eurekalert.org)