Quotulatiousness

March 15, 2011

“Obesity crusaders” use “inherently flawed instruments, such as BMI and apple-body shapes, to misinform the public”

Filed under: Government, Health, Media — Tags: , , , — Nicholas @ 12:50

Patrick Basham and John Luik address the manifest failings of the public health crusade against obesity:

Since the anti-obesity campaign is allegedly motivated by scientific findings, it would seem reasonable and prudent to make doubly sure that those claims are factual and trustworthy. Yet, we continue to find that the case against obesity is significantly flawed. Not only are the claims of an obesity epidemic often wildly exaggerated, but the science linking weight to unfavourable mortality outcomes is also frequently nonexistent or distorted.

[. . .]

As Danesh suggests, other researchers have suggested concentrating on a measurement of the waist alone, while many cling to BMI, which calculates obesity based upon a weight-to-height ratio. Because of its easy applicability, BMI is universally used in officially defining obesity, despite its manifest shortcomings. The BMI is wholly arbitrary and has no scientifically valid connection with mortality.

“Obesity crusaders” are what we call the individuals who manufactured the obesity-epidemic story in the first place and continue, through application of inherently flawed instruments, such as BMI and apple-body shapes, to misinform the public. They are a relatively small group of public-health officials in the US, the UK, the EU, and the World Health Organisation, assorted academics (very many with close ties to the weight-loss and pharmaceutical industry), the International Obesity Task Force, and a collection of so-called public-interest science groups.

How are these obesity crusaders reacting to the unambiguously good news published in The Lancet? Surely, they rejoice at the fact there is one less thing for a health-conscious population to fret over? No, they are not in celebratory mood. Quite the contrary. The obesity crusaders did not waste any time on the New Good News; after all, the Old-Time Religion continues to serve them so well.

It gets worse for the “fat=early death” meme:

There is little credible scientific evidence that supports the claims that being overweight or obese leads to an early death. For example, Katherine Flegal of the Centers for Disease Control and Prevention found that in the US population there were more premature deaths among those who are normal weight than those who are overweight. Indeed, in this study, Americans who were overweight were those most likely to live the longest.

In the American Journal of Public Health, Jerome Gronniger found that men in the “normal” weight category exhibited a mortality rate as high as that of men in the moderately obese category; men in the “overweight” category clearly had the lowest mortality risk.

Shang-Jin Wei on the Chinese sex imbalance and its economic impact

Filed under: China, Economics, Government — Tags: , , — Nicholas @ 12:19

China’s one-child policy not only intruded into the personal lives of Chinese couples, but it may also have been a key contributor to the economic bubble:

Could a reproductive policy have caused the financial crisis? Could it still be wreaking havoc with the world economy? During a lively discussion at the Council on Foreign Relations yesterday, Columbia professor Shang-Jin Wei said this could be the case. He claimed that the skewed Chinese sex ratio (there are more men than women) can explain much of global trade imbalances. Mr Wei reckons the Chinese sex ratio can explain the high Chinese saving rate, and this is what’s behind China’s current-account surplus.

China adopted the one child law in the early 1980s. It resulted in a skewed sex ratio because many couples preferred a male baby and aborted female fetuses. In 1980, 106 boys were born were born for every 100 girls. By 1997, it was 122 boys for every 100 girls. This means that today one in nine Chinese men will probably never marry and the situation is expected to get worse as time goes on. It’s been suggested that the large pool of single men with no marriage prospects can lead to social unrest. What that will mean for China’s political future is uncertain and potentially troubling. But the world may already be experiencing the economic impact of this policy. Trade imbalances, specifically the Chinese current account surplus and America’s current account deficit, are often cited as a cause of the financial crisis. They provided a glut of cheap, easy capital which fed the housing bubble.

[. . .]

The lack of a social safety net is often blamed for the high Chinese saving rate. Without welfare and government pensions the Chinese must save to self-insure themselves. But Mr Wei pointed out that even as the government has extended more social welfare programmes, the saving rate has continued to rise. He believes the uneven sex ratio can explain half of the increase in private saving between 1990 and 2005. He explained that the marriage market is becoming very competitive with so few girls. Chinese parents want to accumulate as much wealth as possible to ensure that their son can attract a wife. It is also important to provide sons with the best education possible. A competitive marriage market means that members of the disadvantaged gender must raise their game, which in China means greater wealth and education.

Mr Wei also reckons the sex ratio can explain capital accumulation in the corporate sector. The desire to accumulate wealth means that boys and their parents are more likely to become entrepreneurs, work more hours and take more unpleasant jobs. He found higher rates of entrepreneurship in areas with more skewed sex ratios.

This, of course, is the optimistic view of things. The pessimistic view involves those tens of millions of men who can never find wives and projects that into social unrest, civil disorder, and military adventurism. Let’s hope the optimistic view is closer to being correct.

DC residents get stiffed on their solar power subsidies

Filed under: Environment, Government, Technology, USA — Tags: , , , , — Nicholas @ 12:00

David Nakamura reports on some Washington, DC folks who are feeling ripped off by their local government over solar panel reimbursements that were promised but never delivered:

It isn’t easy going green, and it may also prove costly.

Dozens of District residents who installed solar panels on their homes under a government grant program promoting renewable energy have been told they will not be reimbursed thousands of dollars as promised because the funds were diverted to help close a citywide budget gap.

In all, the city has reneged on a commitment of about $700,000 to 51 residents, according to the D.C. Department of the Environment. The agency has pledged to try to find money in next year’s budget, its director, Christophe Tulou, said.

“It just doesn’t seem fair to go through a process with them and have them make investments in solar panels under the assumption they would be reimbursed,” Tulou acknowledged. “It’s really sad we are having these economic woes when we are.”

H/T to Radley Balko for the link.

Update on the Fukushima situation

Filed under: Bureaucracy, Environment, Japan, Technology — Tags: , , , — Nicholas @ 09:04

Colby Cosh complained yesterday about the low quality of information being provided by the Tokyo Electric Power Company (TEPCO), and that has not really improved since yesterday. At The Register, Lewis Page updates the situation as best he can:

The story of the three quake- and tsunami-hit reactors at Japan’s Fukushima plant continues, with indications that one of the three worst-hit reactors has sustained further damage. A fire also broke out at another reactor, shut down at the time of the quake and not previously thought to be a problem, but this has now been put out. None of this suggests that the reactors’ crucial containment vessels could be breached, however.

World Nuclear News reported in the early hours (UK time) that a “loud noise” had been heard at the site of the No 2 reactor at Fukushima and pressure readings had fallen in the doughnut-shaped “suppression chamber” situated beneath the core. The suppression chamber holds a large quantity of water and steam from the core, released into it to be condensed, so reducing pressure in the core without the need to vent to atmosphere in some situations: though reactors 1, 2 and 3 have all been repeatedly vented to atmosphere since the quake nevertheless.

Following the apparent release from inside the suppression chamber, radiation levels at the site briefly rose to 8217 microsieverts per hour — such that an unprotected person outside would receive several years’ normal background radiation dose in a single hour. Radiation then dropped to less than 2,500 microsievert/hr. (UPDATED TO ADD: The IAEA reports that as of 6am UK time this had fallen to 600 microsievert/hr). WNN reports that a statement from TEPCO, the plant operators, stated that there had been “no significant change” to the status of the vital containment vessel surrounding the reactor core.

A new way of looking at wood flooring

Filed under: Europe, Technology, Woodworking — Tags: , , — Nicholas @ 08:39

To state the obvious, trees don’t grow in nice straight lines. As natural creatures, they bend and sway in their environment — if they didn’t, they wouldn’t be able to withstand the extremes of weather. While this is great for the tree, once the tree has been cut down, the amount of useful wood that can be harvested is limited by many factors, including just how far from “straight” the trunk of the tree grew. Much of the wood that can’t be economically used for solid wood products ends up as chips, flakes, or fibres for manufactured “wood” products.

Bolefloors may increase the amount of solid wood that can be used for flooring:

Bolefloor technology combines wood scanning systems, tailor-made CAD/CAM developments and innovative optimization algorithms for placement software developed by a Finnish engineering automation company and three software companies in cooperation with the Institute of Cybernetics at Tallinn University of Technology.

Bolefloor scanners’ natural-edge visual identification technology evaluates “imperfections” such as knots and sapwood near the edges or ends so that floors are both beautiful and durable.

H/T to BoingBoing for the link.

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