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Christopher Bartlett MRC Health Services Research Collaboration,
Department of Social Medicine, University of Bristol, Bristol BS8
2PR
Correspondence to: M Egger, Department of Social
and Preventive Medicine, University of Bern, Finkenhubelweg 11, CH-3012
Bern, Switzerland egger{at}ispm.unibe.ch
Objective:
To assess the characteristics of medical
research that is press released by general medical journals and
reported in newspapers.
What is already known on this topic
There are two stages on the path to newspaper coverage What this study adds
The net effect meant that newspapers emphasised results from
observational studies, in particular studies of women's health,
reproduction, and cancer Good news and bad news were equally likely to be press released, but
bad news was more likely to be reported in newspaper articles
Design:
Longitudinal study.
Data sources:
All original research articles
published in Lancet and BMJ during 1999 and 2000.
Main outcome measures:
Inclusion of articles in
Lancet or BMJ press releases, and reporting of
articles in Times or Sun newspapers.
Results:
Of 1193 original research articles, 517 (43%) were highlighted in a press release and 81 (7%) were reported in one or both newspapers. All articles covered in newspapers had been
press released. The probability of inclusion in press releases was
similar for observational studies and randomised controlled trials, but
trials were less likely to be covered in the newspapers (odds ratio
0.15 (95% confidence interval 0.06 to 0.37)). Good news and bad news
were equally likely to be press released, but bad news was more likely
to be reported in newspapers (1.74 (1.07 to 2.83)). Studies of women's
health, reproduction, and cancer were more likely to be press released
and covered in newspapers. Studies from industrialised countries other
than Britain were less likely to be reported in newspapers (0.51 (0.31 to 0.82)), and no studies from developing countries were covered.
Conclusions:
Characteristics of articles were more
strongly associated with selection for reporting in newspapers than
with selection for inclusion in press releases, although each stage influenced the reporting process. Newspapers underreported randomised trials, emphasised bad news from observational studies, and ignored research from developing countries.
Newspapers are an important source of information about the results of
medical research
selection by
medical journal editors of articles to be press released and the
selection of newsworthy articles by journalists
Examination of press releasing by the Lancet and
BMJ and reporting by the Times and Sun
showed that selection processes acted at both stages
© BMJ 2002
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