Philip Alcabes discusses myths of health, disease and risk.

Childhood Obesity: NYC’s Little Lies, Big Self-Congratulation

There is very little evidence that obesity is harmful to young children.  So I have to ask why NYC’s Department of Health and Mental Hygiene feels so strongly that fat schoolchildren should be forced to slim down.  And why it’s so eager to congratulate itself today on its policing of eating behavior — see reports by WSJ, Bloomberg, CBS (with photos of fat kids!), Huffington, and many other sources.  Why would the city’s health agency lie in order to claim that its jihad against a not-very-convincing evil has been successful?

The subject is a report published by CDC today claiming that obesity among NYC schoolkids in grades K through 8 has decreased 5.5%.

The city’s health commissioner, Thomas A. Farley has been true to the shades of history’s empty-headed warriors.  Farley announced that the drop in obesity prevalence is a “turning-point in the obesity epidemic” although it “does not by any means mark the end.”

A missed photo opp:  Dr. Farley standing on top of a fat child, holding up a sign reading, “Mission Accomplished.”

Farley is zealous about controlling people’s behavior and contemptuous of facts (nobody will ever accuse him of being an intellectual, either).  He blogs about his own work for the exclusive reading pleasure of Department of Health staffers.  This allows his staff to read the Farley-esque twist on truth.  One example for now:  in October of 2010, Farley’s blog exultantly told his staff that in 2009 the department had “immunized nearly 130,000 children [against flu] in more than 1,200 schools over a few months.”  Of course, health department employees are smart — many of them knew that the 2009 H1N1 vaccine Farley was talking about was a fiasco, far too late to make a difference, and aimed at an outbreak that was more of a whimper than a bang.

What about today’s “turning point” in the obesity war?  It’s worth noting that the supposed drop in obesity among NYC schoolkids is really just a very slight (1.2%) difference in the prevalence of obesity between 2006-7 and 2010-11.

A small difference between small numbers amounts to a large percentage difference.  So the 1.2%  actual difference magically turns into the advertised 5.5% — the proportionate change.

But the false advertising gets worse

1.  The prevalence of obesity in NYC was not measured multiple times on the same group of kids (to use epidemiology jargon:  this wasn’t a panel study).  Nobody observed fat children becoming less fat.  The city simply measured obesity prevalence each year on 5- to 14-year-olds who were in the school system.  So a high proportion of the 21.9% of kids who were labeled obese in 2006-7 would have been out of the age range for the 2010-11 assessment.

Plus, lots of kids leave the NYC school system after grade school (this has to do with Bloomberg administration’s bizarre system for preventing children from attending local schools).  So, even those children who haven’t aged out of the analysis by turning 15 would be absent from the data after a few years.  And, there’s also natural immigration and emigration.

Did the 2006 fat kids get slimmer?  Nobody knows.  The 2006-7 obesity prevalence among NYC schoolkids (21.9%) can’t be compared to the 2010-11 prevalence (20.7%).  If you were forced to compare these numbers, you’d say there had been a slight change — not a 5.5% decline.  There’s the first lie.

2.  The second lie is a little more complicated.   Since there is no widely accepted functional definition for childhood obesity, children are labeled obese if their body-mass index (BMI) falls into the upper 5% of the expected distribution of weight-for-height.  This expectation is based on an old-fashioned standard.  Fair enough.  But lots of distributions shift over time — SAT scores, human height, grades awarded at Ivy League colleges, and global average temperature, to name a few.

Sometimes the reason for an overall shift of this sort isn’t hard to specify (test prep, nutritional quality, relaxation of grading standards, generalized global warming, etc.).  But the main effect causing a shift in the distribution doesn’t explain why the few people who are in the upper reaches of the distribution are so far from the mean.  To say that fewer children are now above the high-BMI cutoff than in 2006-7 therefore the tendency of children to be fat is declining is a lot like claiming that because 2011 was cooler than 2009 and 2010, global temperatures are not really going up.

(Dr. Farley, I gather that statistics aren’t your strong suit, but surely when you witnessed that snowstorm we had this past October — an outlier if there ever was one — you didn’t conclude that the climate is actually getting colder, not hotter.  So what makes you think that a very tiny decrease in the proportion of kids with high BMIs means that the city’s kids are getting slimmer?)

3.  Claiming credit.   Attributing to the health agency’s own efforts a minuscule change in the proportion of kids who are in the upper tail of the broad BMI distribution requires self-congratulation so acrobatic as to stretch credulity.

Maybe there really has been some change in the city’s children since 2006.  Or in our food supply or buying habits.  Or exercising.  But to claim that such a change both caused the tiny decline in schoolkid obesity prevalence and that it was the result of the Health Department’s efforts — the exercising and the low-fat milk and the salad bars in the school cafeterias and so forth — is to commit the fallacy that Rene Dubos outlined (in his book Mirage of Health) nearly 50 years ago:

When the tide is receding from the beach it is easy to have the illusion that one can empty the ocean by removing water with a pail.

Is childhood obesity really a health problem?

It’s not crazy for health professionals to be concerned about body mass.  Obesity might be really bad for some people, and somewhat bad for many.

But those people are adults.  Why are health agencies like NYC’s so riled up about obesity in little children?

So far, there’s no strong evidence that obesity in younger children predicts any real harm later in life, other than being a fat adult.  With adults, several signs of impending debility are more commonly found in the obese than the non-obese, such as hardening of the arteries, fatty liver, sleep apnea, and diabetes.   And with adolescents, there’s some evidence that those who are obese develop similar warning signs.  But not younger kids.

A 2005 BMJ paper reported only social effects in adulthood (being unemployed and being without a romantic partner) of early obesity.  Similarly, one cohort study carried out in Newcastle upon Tyne found little evidence that fat children became fat adults, and no evidence for predictors of illness in adulthood among those who had been overweight as children — although other studies have shown correlations between adolescent obesity and adult problems.

For kids below age 15, the most visible problem with obesity is that it occurs most commonly among the poor and dark-skinned.  This bothers the obesity warriors.  In fact, not only is obesity more common in African- and Hispanic-American children in NYC, even the slipshod standards of today’s report on NYC schoolkids can’t be manipulated to show that obesity is declining among these children.

As with all holy wars, from the Children’s Crusade through the U.S. invasion of Iraq, the warriors aren’t really concerned about principle.  Something about somebody got under their skin.

Here’s how I answer my own question:  I guess the obesity crusaders don’t like it when the children of the wealthy look like the children of the poor.  They think that white kids on the Upper East Side aren’t supposed to look like kids who live in the Bronx.

It isn’t about health, in other words.  It isn’t even about obesity.  The “childhood obesity epidemic” is about making sure society looks the way that the health crusaders want it to look.

 

 

By Philip Alcabes | December 16th, 2011 | Categories: epidemics, obesity, public health, Uncategorized | Tags: , , , , , , | 1 comment

Life Expectancy Goes Up but Risk-reduction lectures Continue

Bravo! to Rob Lyons at Spiked. Since it’s now apparent that life expectancy has increased almost everywhere and is at historic high levels in much of the developed world, Lyons asks the logical question:  why is the public health system still scolding everyone about what people eat and how fat the average person is?

A paper by David Leon in this month’s International Journal of Epidemiology showed the dramatic increase in life expectancy — the median age at death, that is.  It has reached over 85 years for women in Japan, but it’s high even in countries where longevity was relatively low a generation ago.  Cheeringly, US life expectancy at birth is now 78 years; in the UK it’s 80.  And it’s even higher in some countries of western continental Europe.  Here are the graphs for different parts of the world from Leon’s paper, showing trends since 1970:

Life expectancy since 1970

Lyons has gone after the anti-obesity crusaders before (as well as related topics at his smart blog on contemporary food confusion, Panic On A Plate).  Now, he’s particularly disturbed by the sermonizing about eating. “You can’t even have a pie and a pint without someone telling you it will kill you, it seems,” Lyons writes at Spiked.

And, really, it’s even worse than that — because it’s not just eating that’s the subject of the lecturing.  It might be true that you will live longer if you give up smoking, cut your salt intake, drop your BMI down to 24.99, exercise four times per week for at least 20 minutes each time, get immunized against flu and human papillomavirus, drink in moderation, and take naps.  But unfortunately there’s not a bit of evidence that any of that — apart from the decline in smoking — has contributed to increasing longevity.

And of course, even with smoking cessation, there’s no telling whether it would make any difference to you — only on average.

So why are the public health messages so far away from what really matters — basically, prenatal care, postnatal care, and wealth (with its concomitant, standard of living)?  Well, there’s a puzzle.

What’s the point of having an industry whose main aim is to make sure that people are constantly in fear that they are doing something that will kill them — even as it becomes apparent that most of what people do is only making us live longer?   Lyons calls it Good News Omission Mentality Syndrome (GNOMES).

I ask you:  could it have something to do with control?  And the desire to sell products?

By Philip Alcabes | March 25th, 2011 | Categories: Behavior, Health Professions, obesity, public health, Risk | Tags: , , , , , , , , , | 8 comments

Public Health: Childhood is a Dangerous Place

Is there a Department of Scare Creation at Case Western?  This week, we have research reported by their Dr. Scott Frank and colleagues: “Hyper-texting and Hyper-networking Pose New Health Risks for Teens.”  Frank says,

The startling results of this study suggest that when left unchecked texting and other widely popular methods of staying connected can have dangerous health effects on teenagers.

(Aside to Dr. Frank:  C’mon, doc.  Do you not know that “hyper text” is already a term in wide usage? Do you know how sometimes there are underlined words, most often in blue, that, if you click on them with your mouse then you are magically transported to another website?  That’s it.  Do you realize that any teens who aren’t already laughing at you for your transparently hysterical research agenda have cause to snicker over your misuse of contemporary language?  But back to my point…)

The subject of a press release by the American Public Health Association, the study claims that teens who text  more than 120 times a day are, compared to light texters:

  • 41% more likely to have used illicit drugs
  • Nearly 3.5 times more likely to have had sex
  • 90% more likely to report having had four or more sexual partners

The results were based on a survey of over 4,000 high school students in the midwest.

The paper, presented at the annual meeting of the APHA, is yet another indicator of the association’s redirection — from promoting social reform to becoming the Popular Front for the Promotion of Family Values.   The news media complied with the APHA’s mongering by publicizing Frank et al.’s findings, for instance here, and so did the usually serious WebMD.

Research like this is meant to say both “childhood is deadly” and “children are dangerous.”  Teenagers have sex, it says, and you grownups shouldn’t take that lightly.

The connection of teen sex and teen drug use to cell phones, iPhones, or the Internet appeals to people who think there is something new, and terrifying, about modernity.  As Carl Phillips notes over at ep-ology, it’s a way of saying “Beware the scary new technology!  It is causing teens to interact.”

Of course, there’s also a race, class, and sex angle:  The study reported that excessive texting (along with what the authors call “hyper-networking,” meaning excessive use of social network sites) is more common among girls, racial minorities, and kids whose parents have less education. One more reason to be suspicious of the poor and the dark-of-skin, says the Popular Front.

Especially, the APHA wants us to beware of girls.  The public health industry — the folks who reminded your grandparents that female sexual desire spreads disease with posters like this one, from the ’40s:

US Government VD Poster, ca. 1940

Source: U. of Minnesota, Social Welfare History Archives

… now tell us to watch out for girls who text.

Mike Stobbe at AP, covering the report, did a (typically) good job of looking deeper into the question.  About half of kids between the ages of 8 and 18 text each day, and the ones who do average 118 texts per day. While texting while driving is a really bad idea, texting about sex isn’t uncommon (Stobbe points out).  Unlike texting while driving, nobody dies from it.

Public heath shouldn’t be a matter of, as the Frank report put it, wake-up calls for parents.   Childhood really is dangerous in some places (Somalia, Congo, and Haiti come to mind, in case physician-researchers currently obsessed with sex amongst American teenagers are looking for something useful to do with their medical skills).  But it isn’t in America.   Sex, even between teenagers, really isn’t very scary.   There are a lot of things we adults could do to make the country and the world less miserable, but spying on our kids isn’t among them.

By Philip Alcabes | November 13th, 2010 | Categories: Behavior, Myths, public health, Risk | Tags: , , , , , , | 1 comment

Anti-Tobacco Crusaders

It’s hard to understand why the public health industry is so irrational about tobacco use.  Yes, it’s dangerous  to inhale the fumes of burning tobacco.  Smoking can be very bad for people.  But why vilify tobacco use in all its forms?

The anti-tobacco crusade is a modern-day version of Revivalist religious fervor.  It sure isn’t science.  And it isn’t about protecting people’s health.

The CDC estimates that 442,000 Americans die from tobacco smoking each year.  These estimates are slippery; they’re based on a fairly loose definition of what it means to die “from” a behavior — but let’s agree that a lot of people die sooner than they otherwise would because they smoke cigarettes.

Alternative ways of self-administering nicotine allow users to avoid the disastrously harmful drug-delivery device, the cigarette.  You’d think that Big Public Health, 45 years into a campaign to get people to stop smoking, would be promoting all sorts of safe methods of nicotine delivery.

That’s not what happens.  Instead, the industry pours anathema on light cigarettes, smokeless tobacco, and other safer-than-cigarettes products.

The latest sermon is an article in this month’s The Nation’s Health — the newsletter of the American Public Health Association (APHA, which has turned into the High Synod of Public Health Religion).  The article  claims that “New Types of Smokeless Tobacco Present Growing Risks for Youth.”

The title is a double rhetorical turn now (alas) typical of APHA:  (1) your kids are going to die, and (2) the “risk” to them is increasing.  The piece would seem silly if the author, named Kim Krisberg, weren’t so serious.  After all, it isn’t kids who die from smoking, and the risk of smoking-related death isn’t increasing at all.  But we’re not in the realm of truth here.

Since Big Public Health isn’t dealing in truth when it comes to tobacco, evidence isn’t part of the story.   The head of the Campaign for Tobacco-Free Kids can say “the time to stop the spread of dangerous products is before they become the fad of today,” insouciantly sidestepping the fact that smokeless tobacco products aren’t dangerous.  Brad Rodu’s invaluable website Tobacco Truth explains — see Brad’s June 16th post, for instance.  Or go to this page at the excellent resource TobaccoHarmReduction, or see this article published in Cancer Epidemiology, Biomarkers & Prevention in 2004.

The public health industry’s animus for tobacco leads it to label as harmful something that is really a boon to public health — the increasing use of products that provide nicotine without burning tobacco.  Surely it’s better to have people chewing nicotine-containing products that won’t harm them than to allow them to continue smoking tobacco in order to get a nicotine dose.

Moralistic fervor makes you stupid.  Stupid enough to write, as two physicians with FDA’s Center for Tobacco Products did,

As state and local communities across the United States adopt indoor clean-air laws that restrict smoking in public areas and workplaces, the tobacco industry seems increasingly focused on the development and introduction of novel smokeless tobacco products

… as if the tobacco industry were magically making Americans who would otherwise stop smoking suddenly crave smokeless tobacco — and as if that would be bad for them.  Drs. Deyton and Cruz, you should know better.

But Matthew Myer with Tobacco-Free Kids isn’t unintelligent.  Nor, I assume, are Deyton and Cruz.  And I can’t imagine they really want people to suffer.

Still, do they really think that safe non-smoked tobacco products are going to bewitch our kids?  Do they believe that apocalypse comes in a package of smokeless tobacco?

Are they just so obsessed with battling tobacco companies that they’ve lost sight of the aim of public health, i.e., to reduce suffering?

Or is it simpler?  Has the public health industry’s big-money anti-tobacco campaign allowed too many people to make too good a living by saying stupid things about tobacco?

The cigarette manufacturers have been scurrilous, dastardly, and sometimes appallingly inured to the misery and death their products have hastened.  Maybe they deserve the Myerses of the world.

But the public health industry could be a lot more focused on helping people to live less painful lives, and less obsessed with its private demons.

As Carl V. Phillips suggests in a post this week, the FDA will have to break with the public health industry’s moralism if people who use nicotine are going to protect themselves from cigarettes.

If the FDA can’t overcome Big Public Health’s obsession with satanic tobacco rituals, re-introduce truth into the discussion, and re-focus on making real people’s lives less miserable, the zealots are going to turn stupidity into bad policy.

By Philip Alcabes | August 3rd, 2010 | Categories: Behavior, Health Professions, public health, Risk, science, tobacco, Uncategorized | Tags: , , , | Comments Off on Anti-Tobacco Crusaders

Revolving door? Official agencies and the private sector

In late December, Effect Measure reacted to former CDC director Dr. Julie Gerberding’s hiring as President of Merck Vaccines. With customary cogency and insight, Revere addresses the problem of the so-called Revolving Door.

At The Great Beyond, Daniel Cressey notes that Dr. Gerberding, while at CDC, was accused of promoting the Bush Administration’s agendas at the cost of scientific accuracy.  Naturally, now that she is heading for Merck, many are concerned about what looks like a cozy relationship between official agencies and pharmaceutical companies.

Merck says that its vaccine arm is worth $5 billion.  It “markets vaccines for 12 of the 17 diseases for which the U.S. Advisory Committee for Immunization Practices currently recommends vaccines,” according to the company’s press release.

Dr. Gerberding was close to the vaccine world as head of CDC. In fact, during her tenure there CDC’s   Advisory Committee on Immunization Practices (ACIP) called for the implementation of immunization against human papillomavirus and varicella zoster (chicken pox) virus and the agency pushed for expanded immunization against seasonal flu; within 10 months of her (January ’09) departure from CDC, the ACIP had issued recommendations for the use of anthrax vaccine and Cervarix and Gardasil vaccines against HPV.  Gardasil  is a Merck product.

But the problem is more than the “revolving door” metaphor implies.  To have a door there must be a wall — a clear demarcation between inside and out.   As if corporations (pharmaceutical companies among them) were outside of the official system, eager to get the ear of those inside.

Whereas it seems that there isn’t really much of a wall between official health agencies and big business at all.  To be an official today means taking a veritable oath of loyalty to corporate solutions.  The official has to deal in risk.  She has to be ready to sell risk as a kind of debt:  people should want to avoid risk, just as they avoid debt; but if their behaviors put them “at risk,” they can relieve it through “lifestyle” correction.  You can refinance if you know how.

The correction that allegedly relieves risk usually involves the use of better products. Cut out trans fats,  lower your cholesterol, elevate your mood, hop on a treadmill, lose weight, drink responsibly, get seasonal flu vaccine, get swine flu vaccine, wait patiently while the full-body scanners are used at the airport, eat more vegetables, wear sunblock, use hand sanitizer.  Health officials’ job is to get the means for personal risk reduction to the sorry at-risk population.  Have hand-sanitizer dispensers installed in public buildings.  Distribute condoms.  Publish recipes for healthy meals.

Notably, health officials are not supposed to argue for any of the things that would actually make a difference to the public’s overall health:  redress wealth disparities, provide excellent primary care for everyone (including immigrants), or build more decent and affordable housing.  When was the last time you heard a health official call for a campaign against poverty?

The official has to pitch personal risk reduction, in other words.  She has to be ready to support high-cost, individualized approaches to improving the public’s health — or well-being, which, Dr. Michael Fitzpatrick astutely notes at Spiked!, has replaced health as the main objective of modern Good Works .

Health officials keep faith with the dogma of risk avoidance.  Corporations preach risk reduction and peddle the wares by which people can restructure their lives — and avoid risk.  The wall separating government policy makers from corporate solutions gets more and more flimsy.

By Philip Alcabes | January 1st, 2010 | Categories: Ethics, Health Professions, public health, Risk | Tags: , , , , , , , , , , | 3 comments

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