Selling Sickness: The Pharmaceutial Industry & Disease Mongering
Source: Selling Sickness, by Ray Moynihan and David Henry.
A lot of money can be made from healthy
people who believe they are sick.
Pharmaceutical companies sponsor
diseases and promote them to prescribers and
consumers. Ray Moynihan and David Henry give examples of
"disease mongering" and suggest how to prevent the growth of this
practice
There's
a lot of money to be made from telling healthy people they're sick. Some forms
of medicalising ordinary life may now be better
described as disease mongering: widening the boundaries of treatable illness in
order to expand markets for those who sell and deliver treatments.
Pharmaceutical companies are actively involved in sponsoring the definition of
diseases and promoting them to both prescribers and
consumers. The social construction of illness is being replaced by the
corporate construction of disease.
Whereas
some aspects of medicalisation are the subject of
ongoing debate, the mechanics of corporate-backed disease mongering, and its
impact on public consciousness, medical practice, human health, and national
budgets, have attracted limited critical scrutiny.
Within
many disease categories informal alliances have emerged, comprising drug
company staff, doctors, and consumer groups. Ostensibly engaged in raising
public awareness about underdiagnosed and undertreated problems, these alliances tend to promote a
view of their particular condition as widespread, serious, and treatable.
Because these "disease awareness" campaigns are commonly linked to
companies' marketing strategies, they operate to expand markets for new
pharmaceutical products. Alternative approache semphasising the self-limiting or relatively benign natural history of a problem,
or the importance of personal coping strategiesare
played down or ignored. As the late medical writer Lynn Payer observed, disease
mongers "gnaw away at our self-confidence."2
Although
some sponsored professionals or consumers may act independently and all
concerned may have honourable motives, in many cases the formula is the same:
groups and/or campaigns are orchestrated, funded, and facilitated by corporate
interests, often via their public relations and marketing infrastructure.
Summary points
-
Some
forms of "medicalisation" may now be better
described as "disease mongering"extending
the boundaries of treatable illness to expand markets for new products
-
Alliances
of pharmaceutical manufacturers, doctors, and patients groups use the media to
frame conditions as being widespread and severe
-
Disease
mongering can include turning ordinary ailments into medical problems, seeing
mild symptoms as serious, treating personal problems as medical, seeing risks
as diseases, and framing prevalence estimates to maximise potential markets
-
Corporate
funded information about disease should be replaced by independent information
A
key strategy of the alliances is to target the news media with stories designed
to create fears about the condition or disease and draw attention to the latest
treatment. Company sponsored advisory boards supply
the "independent experts" for these stories, consumer groups provide
the "victims," and public relations companies provide media outlets
with the positive spin about the latest "breakthrough" medications.
Inappropriate
medicalisation carries the dangers of unnecessary
labelling, poor treatment decisions, iatrogenic illness (caused by doctors/hospitals), and economic waste, as
well as the opportunity costs that result when resources are diverted away from
treating or preventing more serious disease.
At a deeper level it may help to
feed unhealthy obsessions with health, obscure or
mystify sociological or political explanations for health problems, and focus
undue attention on pharmacological, individualised, or privatised solutions.
More tangibly and immediately, the costs of new drugs targeted at essentially
healthy people are threatening the viability of publicly funded universal health insurance systems.
Recent
discussions about medicalisation6 have emphasised the limitations of earlier
critiques of the disabling impact of a powerful medical establishment.
Contemporary writers argue that the lay populace has become more active, better
informed about risks and benefits, less trusting of medical authority, and less
passively accepting of the expansion of medical jurisdiction into their bodies
and lives.
Although these views may herald a more mature debate about medicalisation, the erosion of trust in medical opinion
reinforces the need for wide public scrutiny of industry's role in these
processes.
In
this paper we do not aim for a comprehensive classification or definitive
description of disease mongering, but rather we draw attention to an important
but under-recognised phenomenon.
We identify examples, taken from the
Australian context but familiar internationally, which loosely represent five
examples of disease mongering: the ordinary processes or ailments of life
classified as medical problems; mild symptoms portrayed as portents of a
serious disease; personal or social problems seen as medical ones; risks
conceptualised as diseases; and disease prevalence estimates framed to maximise
the size of a medical problem. These groups are not mutually exclusive and some
examples overlap.
Ordinary Processes or Ailments as Medical Problems: Baldness
The
medicalisation of baldness shows clearly the
transformation of the ordinary processes of life into medical phenomena. Around
the time that Merck's hair growth drug finasteride (Propecia) was first approved in Australia, leading newspapers featured new information about
the emotional trauma associated with hair loss.
The global public relations
firm Edelman orchestrated some of the coverage but largely left its
fingerprints off the resulting stories. An article on page 4 in the Australian
newspaper featured a new "study" suggesting that a third of all men
experienced some degree of hair loss, along with comments by concerned experts
and news that an International Hair Study Institute had been established.
It suggested that losing hair could lead to panic and other emotional
difficulties, and even have an impact on job prospects and mental wellbeing.
The article did not reveal that the study and the institute were both funded by
Merck and that the experts quoted had been supplied by Edelman, despite this
information being available in Edelman's publicity materials in May 1998.
Merck
has widely promoted hair loss as a medical problem, including advertising on buses. Although Merck is prevented from advertising finasteride (drug) direct to consumers in Australia, it has continued to promote hair loss as a medical problem, with waves of advertisements urging balding men to "See Your Doctor."
The company argues that it does not describe baldness as an illness and that men have a legitimate right to be
made aware of scientifically proved options to stop hair loss (statement from Merck spokesperson, 7 March 2002).
Mild Symptoms as Portents of Serious Disease: Irritable Bowel Syndrome
Irritable
bowel syndrome has long been considered a common functional disorder,
and a "diagnosis of exclusion" covering a range of symptom severity,
yet it is currently experiencing something of a global "makeover."
Without question many people with the condition are severely disabled by their
symptoms, but the arrival of new drugs has seen manufacturers seek to change
the way the world thinks about irritable bowel syndrome.
What
for many people is a mild functional disorder, requiring little more than
reassurance about its benign natural course, is currently
being reframed as a serious disease attracting a label and a drug, with all the
associated harms and costs.
Confidential Plan to "Shape" Medical Opinion
A confidential draft document leaked from a medical communications company, In Vivo Communications, describes a three year "medical education
programme" to create a new perception of irritable bowel syndrome as a "credible, common and concrete disease." The proposed 2001-3 education programme is part of the marketing strategy for GlaxoSmithKline's
drug Lotronex (alosetron hydrochloride).
In
Vivo is one of a handful of companies specialising in corporate-backed
"medical education," and the leaked plan provides a rare insight into
the highly secretive world of drug promotion, with its new emphasis on "shaping"
medical and public opinion about the latest diseases.
According
to the documents, the education programme's key aim is this: "IBS
(irritable bowel syndrome) must be established in the minds of doctors as a
significant and discrete disease state." Patients also "need to be
convinced that IBS is a common and recognised medical disorder." The other
main messages are about promoting the new "clinically proven therapy" Lotronex.
The
first step is to set up an "Advisory Board, comprising of one KOL [key opinion
leader] from each state of Australia." Its chief role would be to provide
advice to the corporate sponsors on current opinion in gastroenterology and on
"opportunities for shaping it." Further work would include developing
"best practice guidelines" for diagnosing and managing irritable
bowel syndrome and attending overseas meetings.
Another strategy was to produce
a newsletter in the pre-launch period to "establish the market" and
convince the "specialist market" that the condition is a
"serious and credible disease."
For
general practitioners, In Vivo recommends a series of advertorials in leading
medical magazines, featuring interviews with members of the company's advisory
board, because "The imprimatur of [board] members is invaluable in reassuring
[general practitioners] . . . that the material they receive is clinically
valid."
Other
groups to be targeted with promotional material include pharmacists, nurses,
patients, and a medical foundation described as already having a "close
relationship" with In Vivo. A "patient support programme" is
also planned for 2002-3, so that GlaxoSmithKline will
"reap the loyalty dividend when the competitor drug kicks in."
Medical Education or Marketing?
Although
billed as a medical education plan, the document is clearly part of the Lotronex marketing strategy. One clause explicitly
stipulates that all publications and manuscripts must be approved by the drug
company's marketing, medical, and legal departments.
The document also makes
clear the media's role in changing public perceptions about irritable bowel
syndrome, stating that "PR [public relations] and media activities are
crucial to a well-rounded campaignparticularly in the
area of consumer awareness."
Whatever
the integrity or competence of the professionals or consumer advocates
involved, and without seeking to minimise the importance of the disorder for
some individuals, this plan shows that staff and organisations sponsored by a
drug company are helping to shape medical and public opinion about the condition
that company is targeting with its new product.
Although GlaxoSmithKline
has argued that its sponsorship of education can improve doctors' prescribing
habits (personal communication, 7 March 2002), the conflict of interest is obvious and potentially dangerous. Self
evidently, the drug company's primary interest will be shaping opinion about
irritable bowel syndrome in a way that will maximise sales of its medication.
In
this case the proposed campaign was stopped because of the withdrawal of Lotronex from the market, after reports to the US Food and
Drug Administration of serious and sometimes fatal adverse reactions. In a
recent letter to patients, the administration suggested that indiscriminate use
of the drug could result in more fatal adverse events and that many patients in
whom the condition was non-serious could experience more harm than good.
Conversations
with industry insiders and other published material from the drug marketing
industry confirm that the strategies proposed for promoting irritable bowel
syndrome by In Vivo were in no way exceptional.
A "practical guide"
published by Britain's Pharmaceutical Marketing magazine last year explicitly
emphasised that key objectives of the pre-launch period were to "establish
a need" for a new drug and "create the desire" among
prescribers. The guide instructed drug marketers that they may need to
"initiate a review of the whole way in which a particular disease is
managed."
Personal or Social Problems as Medical Ones: Social Phobia
When
Roche was promoting its antidepressant Aurorix (moclobemide) as a valuable treatment for social phobia in
1997, its public relations company issued a press release, picked up by some of
the media, announcing that more than one million Australians had an underdiagnosed psychiatric disorder called social phobia.
The release described a "soul destroying condition" and quoted a
clinical psychologist strongly endorsing the role of antidepressants in its
treatment. At that time, government figures suggested the number of people with
the disorder might be closer to 370,000.
In
1998, a newspaper article, "Too shy for words"this
time not orchestrated by Roche suggested that two
million Australians were affected by the condition. All the media stories
seemed to be part of a wider push to change the common perception of shyness,
from a personal difficulty to a psychiatric disorder.
An
important aspect of Roche's marketing for moclobemide
involved working with a patient group called the Obsessive Compulsive and Anxiety
Disorders Foundation of Victoria and funding a large conference on social
phobia. According to the foundation's chief at the time, "Roche is putting
a lot of money into promoting social phobia . . . Roche funded the conference
to help get social phobia known among [general practitioners] and other health
professionals . . . It was a vehicle to raise awareness with the media
too."11 Roche's promotion of its antidepressant drug also included working
with ostensibly independent medical specialists, one of whom was later
described by a public relations agent as "Moclobemide
Man" (personal communication, 1998).
Pharmaceutical
Marketing's practical guide singled out the promotion of social phobia as a
positive example of drug marketers shaping medical and public opinion about a
disease. "You may even need to reinforce the actual existence of a
disease and/or the value of treating it.
A classic example of this was the need
to create recognition in Europe of social phobia as a distinct clinical entity and the
potential of antidepressant agents such as moclobemide
to treat it," said the industry guide.
It went on: "Social phobia was
recognised in the US and so transatlantic opinion leaders were mobilised to participate in
advisory activities, meetings, publications etc. to help influence the overall
belief in Europe." The medicalisation
of human distress seems to have no limits.
A
senior Roche official recently conceded that company promotion exaggerated the
prevalence of social phobia in Australia. "A lot of disease estimates are blown out of
all proportion . . . The marketing people always beat these things up"
said local managing director Mr Fred Nadjarian (see
news article).
Risks Conceptualised as Diseases: Osteoporosis
Like
high blood pressure or raised cholesterol levels, the medicalisation
of reduced bone mass which occurs as people age is an example of a risk factor being conceptualised as a
disease.
Unlike
medicalising baldness, conceiving osteoporosis as a
disease is ethically complex. Slowing bone loss can reduce the risk of future fracturejust as lowering blood pressure can reduce a
person's chance of a future stroke or heart attack but
for most healthy people, the risks of serious fractures are low and/or distant,
and in absolute terms, long-term preventive drug treatment offers small
reductions in risk.
For example, in a placebo controlled trial in which alendronate was taken for four years by women who were free
of fracture but had bone mineral density measurements 1.6 standard deviations
below the mean for normal young adult white women, the incidence of
radiographic vertebral fractures was 3.8% in the placebo group and 2.1% in the
treatment group. This equated to a 44% relative reduction in risk but an
absolute risk reduction of only 1.7%.
Furthermore,
the promotional focus on chemical solutions for the complex problem of
preventing fractures takes attention away from a variety of modestly effective
non-pharmacological strategies, such as dietary supplementation with calcium
and vitamin D, smoking cessation, and weight bearing exercise.
Despite
the ethical complexities, osteoporosis remains a strong example of disease
mongering because the corporate role in changing the way populations think
about bone loss has been so extensive. Drug companies have sponsored meetings
where the disease was being defined, funded studies
of therapies, and developed extensive financial ties with leading
researchers.
They have funded patient groups, disease foundations, and
advertising campaigns (on both drugs and disease) targeted at doctors11 and
have sponsored osteoporosis media awards offering lucrative prizes to
journalists.
A Controversial Definition of Osteoporosis
Contrary
to much of the corporate promotion, the definition of osteoporosis is still
controversial. Diagnostic criteria set by the World Health Organization, which
set the bone density of young white women as "normal" and judge the
bones of older women against this standard, are contentious. A key meeting of the WHO study group involved in defining
the diagnosis of osteoporosis was funded in part by three pharmaceutical
companies.
The
link between bone density and fracture risk is also the subject of scientific
controversy, with reviewers pointing out that while bone mineral density is
associated with fracture, it is not a sufficiently accurate predictor of an
individual's risk of fracture to be used as a guide to therapy.
A recent
evaluation by the University of British Columbia concluded that "Research
evidence does not support either whole population or selective . . . bone
mineral density testing of well women at or near menopause as a means to
predict future fractures."16
Good
quality studies have shown that several drugs, including oestrogens,
selective oestrogen receptor modulating agents, and bisphosphonates,
reduce the risk of fractures.
However, although public promotion of those
drugs often relies on presentations of relative reductions in fracture risk,
the absolute reductions for healthy women are small when weighed against potential
harms and costs.
The Marketing of Fear
Osteoporosis
Australia, a medical foundation, which has received funding from pharmaceutical
companies, issued a press release recently urging people to take a one minute
test for their risk of osteoporosis. According to the foundation, "we
call this disease a silent thief: if you're not vigilant, it can sneak up on
you and snatch your quality of life and your long-term health."
An
accompanying 10 point checklist suggests that merely being a menopausal woman was
enough to justify a trip to the doctor to be tested for this disease. The
construction of the widely used WHO diagnostic criteria is such that large
numbers of healthy women at menopause will automatically be diagnosed as having
this "disease" because their bones are being compared with those of
much younger women.
Against
a background of controversy over disease definition, poor predictive value of
bone density measurement, and heavily advertised expensive therapies offering
marginal benefits to menopausal women, corporate backed promotional activities
are attempting to persuade millions of healthy women worldwide that they are
sick.
Disease Prevalence Estimates Framed: Erectile Dysfunction
Double
page advertisements told Australians recently that 39% of men who visit general practitioners have erection problems. The advertisement featured an unhappy
couple, who looked to be in their 30s or 40s, on opposite sides of a double bed, with the accompanying text: "Erection problems: hard to talk about,
easy to treat." As with much disease mongering, the key strategy here was to make the condition seem as widespread as possible.
The 39% claim in the advertisement was referenced to an abstract of a survey finding. The full version of the published survey22 revealed that the 39% figure was obtained by tallying all categories of difficulties, including men who reported having problems only "occasionally," and the average age of those reporting complete erectile dysfunction was 71 years.
Another recent Australian study, not cited in the advertisement, estimated that erection problems affected only 3% of men in their 40s, and 64% of men in their 70s.
The advertisement's fine print cited a host organisation, Impotence Australia, and two other groups but did not mention that the advertisement was funded by the manufacturer of sildenafil (Viagra), Pfizer.
Impotence Australia had at that time only recently been set up with a grant of $A200 000 (£74 000; $105 200; 119 400) from Pfizer. Its executive officer told the press, "I could understand that people may have a feeling
that this is a front for Pfizer."24 [Ya' think?]
Defending
the public promotion of erection problems, a Pfizer spokesperson said,
"The best consumer is an educated consumer . . . Who better than the
manufacturer to help this process?" (personal
communication, 5 March, 2002).
These
observations of disease mongering are selective and preliminary. They are not
the result of systematic study, but rather a series of anecdotal case studies
designed to provoke debate. We know little of the true extent of these industry
funded zones of influence, and even less of their impact.
But we believe more
information and analysis of the nature and functioning of these "unholy
alliances"2 is warranted. The key concern with the examples here is the
invisible and unregulated attempts to change public perceptions about health
and illness to widen markets for new drugs.
Although
mainstream media already play an important role investigating and reporting on
contemporary promotional activities, more could be done to expose and reduce
misleading "wonder drug" stories, which help to facilitate so much
disease mongering.
As
a practical step, we suggest that health professionals, policy makers,
journalists, and consumers move away from reliance on corporate sponsored
material about the nature or prevalence of disease. Genuinely independent
sources of information about health problems could replace those skewed towards
making the maximum numbers of healthy people feel sick.
Just
as researchers from the Cochrane Collaboration are generating systematic
evaluations of the best evidence about therapies, a similar effort may be
required in evaluating and/or producing unbiased information about illnessstarting with those conditions most prone to disease
mongering. Independent lay involvement is crucial to produce accurate,
comprehensive, and accessible materials.
The
public is entitled to know about the controversy surrounding disease
definitions and about the self limiting and relatively benign natural course of
many conditions. A publicly funded and independently run programme of "de-medicalisation," based on respect for human dignity,
rather than shareholder value or professional hubris, is overdue.
Recommendations
for "de-medicalising" normal conditions
-
Move away from
using corporate funded information on medical conditions/ diseases
-
Generate
independent accessible materials on conditions and diseases
-
Widen notions of
informed consent to include information about controversy surrounding the
definitions of conditions and diseases
Acknowledgments - We dedicate this article to
the late Lynn Payer, medical writer, who died last year. We thank David Newby for his help in conducting literature searches.
Footnotes
Competing
interests: DH has received funding from American Home Products to conduct
research into non-steroidal anti-inflammatory drugs. As a member of the
Australian Pharmaceuticals Benefits Advisory Committee, he has has twice been the subject of legal action by Pfizer.
References
-
Illich I., Limits to medicine. London: Penguin, 1990.
-
Payer L., Disease-mongers. New York: John Wiley, 1992.
-
Crawford R., Healthism and the medicalization of everyday life. Int J Health Services
1980; 10: 365-388.
-
Pilgrim D, Bentall R., The medicalisation of misery: A critical realist analysis of the concept of depression. J Mental Health 1999; 261-274.
-
Gilbert D, Walley T, New B. Lifestyle medicines. BMJ 2000; 321: 1341-1344.
-
Williams S, Calnan M., The "Limits" of medicalization? Modern medicine and the lay populace in "late" modernity. Soc Sci Med 1996; 42: 1609-1620.
-
Hickman B., Men wise up to bald truth. Australian
1998 May 21:p4.
-
US Food and Drug Administration. Glaxo Wellcome decides to withdraw Lotronex from the market.
www.fda.gov/bbs/topics/ANSWERS/ANS01058.html (accessed 18 March 2002).
-
Lotronex information. Dear IBS patient. www.fda.gov/cder/drug/infopage/lotronex/dear_patient.htm
(accessed 18 March 2002).
-
Cook J. Practical guide to medical education.
Pharmaceutical Marketing 2001; 6: 14-22.
-
Moynihan R., Too much medicine? Sydney: ABC Books, 1998:137-168.
-
Heath S., Too shy for words. The Age 1998 Mar
30:16. ("Living" section.)
-
Heath I., There must be limits to the medicalisation of human distress. BMJ 1999; 318:
439-440.
-
Cummings SR, Black M, Thompson DE, Applegate
WB. Effect of alendronate on risk of fracture in
women with low bone density but without vertebral fractures: results from the
fracture intervention trial. JAMA 1998; 280:
2077-2082.
-
Wade JP. Rheumatology: 15. Osteoporosis.
CMAJ 2001; 165: 45-50.
-
Green C, Bassett K, Foerster
V, Kazanjian A., Bone mineral density testing: does
the evidence support its selective use in well women? Vancouver, BC: British Columbia Office of Health Technology Assessment, 1997.
-
Black DM, Cummings SR, Karpf
DB, Cauley JA, Thompson DE, Nevitt
MC, et al. Randomised trial of effect of alendronate
on risk of fracture in women with existing vertebral fractures. Lancet 1996;
348: 1535-1541.
-
Wilkin TJ. Changing perceptions in osteoporosis. BMJ 1999; 318:862-864.
-
Moynihan R, Bero L, Ross-Degnan D, Henry D, Lee K, Watkins J, et al. Coverage by the news media of the benefits and risks of medications. N Engl J Med 2000; 342: 1645-1650.
-
Osteoporosis; take the time to take the test. Osteoporosis Australia News release, 6 Aug 2001.
-
Advertisement. Sydney Morning Herald, 2000 21 Oct:76-7. (Good Weekend supplement.)
-
Chew K, Earle C, Stuckey B, Jamrozik K, Keogh E., Erectile dysfunction in general medicine practice: prevalence and clinical correlates. Int J Impotence Res 2000; 12: 41-45.
-
Pinnock C, Stapleton A, Marshall V., Erectile dysfunction in the community: a prevalence study. Med J Aust 1999; 171: 353-357.
-
Moynihan R., Taking the soft option.
Australian Financial Review 2000 Nov 13:29.
Commentary: Medicalisation of Risk Factors
Peter C Gøtzsche, director, Nordic Cochrane Centre, Rigshospitalet, 2100 Copenhagen Ø, Denmark pcg@cochrane.dk.
A
middle aged man with pneumonia may wonder why the attending doctor is inserting a finger into his rectum. This is a screening test, it has nothing to do with the patient's disease. The physician may find a
localised prostate cancer, and the patient may subsequently undergo radical prostatectomy, although no evidence from randomised trials shows that this
operation is effective.
The patient with pneumonia cannot be sure that the
prostatectomy will increase his chance of living longer, but his life will probably feel longer, because the operation renders most men impotent. This disastrous consequence has received too little attention, but when properly informed, many men will decide not to have a
screening test.
The man's risk factor for prostate cancer was his age. Increased age leads to other unanticipated interventions. In some countries, women are invited for
mammography in a letter in which the date and time of the appointment have already been fixed.
This puts pressure on these women, who must actively
decline the invitation if they don't want to be screened. Sometimes, women are asked to give reasons for not attending appointments, as if it were a civic duty.
In leaflets, women get simple messages that cancer detected early can be cured, and early cancers can often be treated with breast conserving surgery.
The data
tell another story: no reliable evidence shows that breast screening saves
lives; breast screening leads to more surgery, including more mastectomies; and
estimates show that more than a tenth of healthy women who attend a breast
screening programme experience considerable psychological distress for many
months.
Senior
scientists argue that this debate should not be taking place in public. This misguided paternalism makes us wonder why health
professionals are so eager to intervene in healthy people's lives and about
those people's own perspectives on risks. In Denmark, the most common cause of death from cancer among
women is no longer breast cancer but is now lung cancer, which is mainly self inflicted.
It
seems that every person aims to balance the rewards of taking risks against
perceived hazards. This can probably explain why laws on wearing safety belts
have not reduced deaths from road crashes. Such deaths now happen to those
outside rather than inside the vehicle probably because drivers who wear safety
belts feel safer and drive faster or more carelessly than those who do not.
Another
important consideration is the reliability of studies of risk. Increased risks
are often reported in case-control studies, which do not reliably identify
moderate increases in risk.
A much quoted and carefully done meta-analysis of
case-control studies claimed to show a 30% increase in the risk of breast
cancer after induced abortion,7 but this was later refuted by a large cohort
study. Most epidemiologists interviewed by Science said they would not take
seriously a single study reporting a new potential cause of cancer unless it
increased the risk by at least a factor of three; some even noted that the
lower limit of the confidence interval should exceed 3.
Nevertheless, lay
people are influenced by increases in risk of 50-100%, and this leads to much
public anxiety and many negative changes in lifestyle. Some people, for
example, will follow unappealing diets or quit sports when told that their bone
mineral density is low, even though these diets may not affect bone mineral
density and inactivity increases the risk of fractures.
Mass
intervention on a fragile basis may lead to mass harm. The
main outcome of cancer screening trials disease specific mortalityis
unreliable and biased in favour of screening.
It therefore seems
prudent to show an effect of a screening programme on total mortality in good
randomised trials and to inform the public fully about the adverse effects
before the programme is implemented. The biggest risk for the population right
now may be the uncritical adoption of screening tests for cancer for example,
for cervical, breast, prostate, colon, and lung cancer, despite lack
of evidence of an effect on total mortality.
Precursors to cancer can be seen
in most healthy people above middle age, and the potential for screening to
cause harm and lead to a diagnosis of "pseudo-disease" is
frightening. Whether risk factors should be turned into diseases also needs
careful reflection for other screening tests for example, detection of mild
hypertension or mild hypercholesterolaemia.
Perhaps
it is time to rethink what life is all about and remind ourselves that most
people are willing to run substantial risks in their ordinary life to preserve
their joy and autonomy.
In Out of Africa, Karen Blixen wrote that the European wants to get insured against fate, whereas the African
takes it as it comes. She also wrote: "Frei lebt wer sterben kann" [Those who can die live freely].
References
-
Stanford JL, Feng
Z, Hamilton AS, Gilliland FD, Stephenson RA, Eley
JW, et al. Urinary and sexual function after radical prostatectomy for
clinically localized prostate cancer: the Prostate Cancer Outcomes Study. JAMA
2000; 283: 354-360.
-
Wolf AM, Nasser JF,
Wolf AM, Schorling JB. The impact
of informed consent on patient interest in prostate-specific antigen screening.
Arch Intern Med 1996; 156: 1333-1336.
-
Olsen O, Gøtzsche
PC. Systematic review of screening for breast cancer with
mammography.
-
Gøtzsche PC. Screening for breast cancer with mammography. Lancet 2001;
358: 2167-2168.
-
Horton R. Screening mammographysetting
the record straight. Lancet 2002; 359: 441-442.
-
Richens J, Imrie J, Copas A. Condoms and
seat belts: the parallels and the lessons. Lancet 2000; 355: 400-403.
-
Brind J, Chinchilli VM, Severs WB, Summy
Long J. Induced abortion as an independent risk factor for breast cancer: a
comprehensive review and meta-analysis. J Epidemiol
Community Health 1996; 50: 481-496.
-
Melbye M, Wohlfahrt J, Olsen JH, Frisch M, Westergaard
T, Helweg Larsen K, et al. Induced abortion and the
risk of breast cancer. N Engl J Med 1997; 336:
81-85.
-
Taubes G.
Epidemiology faces its limits. Science 1995; 269: 164-169.
-
Black WC, Haggstrom
DA, Welch HG. All-cause mortality in randomized trials of
cancer screening. J Natl Cancer Inst 2002; 94:
167-173.
-
Raffle AE, Alden B, Mackenzie EF. Detection
rates for abnormal cervical smears: what are we screening for? Lancet 1995;
345: 1469-1473.
Related Articles
The pharmaceutical industry and disease
mongering, Richard Tiner, Linda Edwards, Adam Jacobs, Philip Sambrook, Judy Stenmark, Jan Karmali, Matthew Anderson, Alison Karasz, Peter Lurie, Sheila McKechnie,
Joanna Moncrieff, Phil Thomas, Ray Moynihan, Iona
Heath, and David Henry BMJ 2002 325: 216.
Action is needed to stop "disease
mongering" BMJ 2002 324: 0.
Postmodern medicine, BMJ 2002 324: 0.
About the Authors:
Ray Moynihan, Journalist, and Iona Heath General Practitioner: ray_128@hotmail.com
David Henry, Professor of Clinical Pharmacology, University of Newcastle, NSW, Australia.
|