June 2nd, 2013

Are you being manipulated? The wisdom of the WHO examined…

legalcounsel
To coincide with World No Tobacco Day 2013 (theme: are you being manipulated?), I attended a workshop in the European Parliament: Do tobacco control measures reduce tobacco use: evidence from research and practice. Frankly, it was quite irksome at times. I finally felt obliged to tackle one of the speakers: here’s what happened…

Perhaps the most troubling contribution was a presentation with the title: Review of the scientific evidence on effectiveness of key measures to reduce smoking, with special reference to the revision of the Tobacco Products Directive [PPT] by Kristina Mauer-Stender, Programme Manager, Tobacco Control, WHO-Europe office. The presentation did nothing of the sort. In fact, it had no outcome data in it as far I could tell.  So I asked Ms Mauer-Stender what lessons we in Europe could learn from Sweden. As you may know, Sweden has by far the lowest rate of smoking in Europe, and very low rates of smoking-related disease as a result. As Professors John Britton and Ann McNeill put it in a June 1 commentary in The Lancet (£):

Harm reduction provides an option for these smokers to substitute cigarettes, preferably completely, with a less hazardous nicotine source. Proof of concept is provided from Sweden, where snus, a form of smokeless tobacco, has provided a socially acceptable and widely available lower-risk option to cigarettes and contributed to exceptionally low smoking prevalence and lung cancer mortality.  

But alas, Ms Mauer-Stender didn’t seem impressed by the actual results in Sweden. She told me that Sweden had fallen behind in tobacco control and is not a model for the rest of us to follow. Instead she said we should be “learning from Ireland and UK”.

Okay, let’s learn from Ireland and the UK. Here we go… using data from OECD Factbook 2013 here are outcome results for Sweden, Ireland and UK picked out amongst other countries in the survey.

smoking rates

Daily smoking prevalence and change since 1990 – Sweden, UK, Ireland compared

Why aren’t these results of scientific interest to WHO?  Sweden has much lower smoking prevalence and has fallen faster than UK or Ireland – the latter having barely moved in 20 years according to the OECD data. I wondered out loud if she was really guided by data and evidence, or her lack of interest in lessons from Sweden was ‘ideological’.  She responded “I cannot support snus”, which I took to be a non-scientific objection to tobacco harm reduction, whatever the scientific, ethical and legal case for snus.  Surely this is  especially relevant given that the draft directive actually bans snus outside Sweden and therefore makes it as difficult as possible to replicate Sweden’s success in whole or in part in other member states, at either the individual or population level.

But if the results are so poor as shown above, why direct me to UK and Ireland?  Probably because these countries score highly on an index of tobacco control activity called the Tobacco Control Scale – see Joossens & Raw in the BMJ for a technical explanation and European Cancer Leagues for user friendly presentation.   The index is built from scores and weightings for tobacco control measures, including: tax and price increases; bans on smoking in public places; consumer awareness campaigns; bans on advertising and promotion; prominence of health warnings; smoking cessation treatment and access to medicinal nicotine.  The availability of low-risk recreational nicotine alternatives to smoking is not assessed or recognised as part of ‘tobacco control’ for the purposes of this index, so ‘harm reduction’ – a rather important outcome, doesn’t count. Here is the league table…

Tobacco control score

You can see chart-topping UK and Ireland compared with sad little Sweden sinking down the rankings.  (Nb. if only UK and Ireland could achieve this sort of success in Eurovision!!).  But noticeably absent from the work on the Tobacco Control Score is any empirical testing of whether it successfully predicts good public health outcomes – ie. does a high score mean lower smoking rates, or a more rapid decline in smoking? Perhaps that’s been done – do let me know.

So how does it look if you plot the Tobacco Control Scale against smoking prevalence for EU-27?  I’m using EU Eurobarometer data for smoking prevalence this time – slightly different measures to OECD.  See country data used for the chart.

Tobacco control score vs prevalence

What does this chart tell us? The little equations down at the bottom tell us two things: that smoking prevalence is hardly correlated with tobacco control score (R-squared is very low at <0.1) because the data is highly scattered and doesn’t form an obvious trend – it would be hard to gauge any trend if I hadn’t drawn one on the chart using the spreadsheet utility.  Second, to the extent there is a relationship (as reflected in the gradient of the line), it is not very strong. An increase in tobacco control score of 30 (a range that covers the difference between all EU states, except UK and Ireland) might on average be associated with 4.7% lower smoking prevalence – yet the difference in prevalence across this range of score is 27% ie. this measure of tobacco policy doesn’t explain much of the variation. Furthermore, it is not clear which way the ‘direction of causation’ goes – it might be that  places with lower smoking prevalence have higher acceptance of tobacco control measures.  Introduce harm reduction however, and you see a huge outlier in the chart – Sweden.   There are other ways of looking at outcomes – rate of change of consumption or prevalence for example – and I’d be happy for others to do that.  The point is that the tobacco control community doesn’t seem that interested in linking policy measures to outcomes.

Why make a fuss? Behind my question to Ms Mauer-Stender were three concerns:

1. That the depth of denial about harm reduction (in this case snus, but also e-cigarettes) is deep and shocking, as it amounts to a casual disregard for health and a nasty authoritarian instinct that in Europe denies people access to products that can save their life and improve their health, and are proven beyond doubt to do so in Sweden (and Norway).

2. That ‘experts’ have been brought in to advise members of the European Parliament on what works in tobacco control at a critical time in the development of legislation, but they did nothing to show scientifically what does work – the presentation was full of assertions and cherry-picked data, followed by flawed advice on which countries are the best models to follow.

3. That agencies like WHO are losing scientific credibility as sources of public health advice, and have come to resemble activists and ideologues. That is no good for public health, but it also erodes trust in WHO and international institutions more generally.  Member states will increasingly ask what they are paying them for.

I will contact Ms Mauer-Stender and ask her to respond.

9 comments to Are you being manipulated? The wisdom of the WHO examined…

  • […] Are you being manipulated? The wisdom of the WHO examined…June 2, 2013To coincide with World No Tobacco Day 2013 (theme: are you being manipulated?), I attended a workshop in the European Parliament: Do tobacco control measures reduce tobacco use: evidence from research and practice. Frankly, it was quite irksome at times. I finally felt obliged to tackle one of the speakers: here’s what happened…Perhaps the most troubling contribution was a presentation with the title: Review of the scientific evidence on effectiveness of key measures to reduce smoking, with special reference to the revision of the Tobacco Products Directive by Kristina Mauer-Stender, Programme Manager, Tobacco Control, WHO-Europe office. The presentation did nothing of the sort. In fact, it had no outcome data in it as far I could tell.? So I asked Ms Mauer-Stender what lessons we in Europe could learn from Sweden. As you may know, Sweden has by far the lowest rate of smoking in Europe, and very low rates of smoking-related disease as a result.Read More. […]

  • […] hubris and anti-scientific delusions.  The directive was based on junk science from WHO (here and here) and negligence on the part of the European Parliament rapporteur (here), evidence free ideas of […]

  • […] Member States like UK and Ireland score high on tobacco policy activity, but Sweden scores high on smoking and health outcomes [see here] […]

  • Mark Entwistle

    This makes very sad reading,I am deeply angered by the WHO/European approach to this issue which ultimately will be responsible for the deaths of millions, the single biggest hope that existing adult smokers have is to be able to convert to tobacco free nicotine products that satisfy their need for nicotine in effectively. This highlights the regard with which the policy makers hold those they are mandated to protect, public health driven by profit.

  • Bill Godshall

    As Clive is fully aware, for more than 25 years THR opponents have been denying the now enormous mountain of consistent scientific and empirical evidence confirming that smokeless tobacco products have helped millions of smokers quit smoking in Sweden and in the US.

    Unfortunately for public health, during the past decade, every public health agency has succumbed to aggressive lobbying by drug industry funded anti tobacco extremist groups to oppose THR, and to intentionally deceive the public about the risks and benefits of low risk smokefree alternatives for smokers.

    While the humane, ethical and public health solution to this problem is to “expose the truth”, to do so is to expose the decades long conspiracy of lies and fear mongering propaganda by public health agencies and drug industry funded groups that falsely claim to promote health.

    Unfortunately, those who have conspired to lie and mislead the public about THR are far more interested in covering their own assess than in protecting consumer or public health.

  • Dodderer

    When talking about evidence from research and practice,I have always wondered about the UK stat that the %age of ex-smokers has only risen from 23% to 25% sine 1982.

    Reading the ONS report from 2006,the conclusions were

    Key findings
    • At any age, men and women in Great Britain are smoking less than the previous generation (with the exception of women born before the mid-1920s).
    • The reduction in smoking prevalence is not due to established smokers giving up more rapidly, but is due to either fewer young people starting to smoke, or to smokers giving up at a younger age, or a combination of these two factors.
    • For men born since the mid-1960s the cohort effects on smoking have stopped and smoking habits have become more stable.
    • For both men and women, smokers born since the 1960s were less likely to smoke 20 or more cigarettes per day than smokers were in the past. However this cohort effect may have now have stopped.
    • It is very difficult to make future predictions, however the data suggest that, if current trends continued, the levels of cigarette consumption that we are observing today among men in Great Britain would be maintained in future generations.

    It would appear(to me ,at least)that smokers should be sub-divided into those susceptible to the exhortations of tobacco control and the rest.

    The rest are a sizable minority who will only be ‘saved’ by harm reduction products – snus,ecigs and products yet to come.Is this not evidence for encouragement,rather than hostility?

  • David

    I certainly hope Ms Mauer-Stender will make a good faith effort to respond and to try to justify her position. It sounds suspiciously like her “I cannot support snus” is a statement based on politics and ideology rather than one founded on science or ethics. With millions of lives on the line we deserve better from WHO spokespeople. After all, since public health is largely about relative risks, it appears to be a logical impossibility to look at the Swedish data and claim “I cannot support snus” without at least implicitly saying “I prefer that people smoke”.

    Additionally, if we are to seriously address smoking-caused disease perhaps the WHO experts on a wide range of other issues where risk reduction is a key component of good public health practice could arrange to run a workshop for those working on nicotine/tobacco issues. In the meantime maybe the WHO experts dealing with issues such as AIDS should also be asked to comment on Ms Mauer-Stender’s position.

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