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CENTER FOR THE ADVANCEMENT OF HEALTH
DECEMBER 2007

Better Computer Use Could Enhance Health

The growth in computer use over the past few decades has changed the way we live, often for the better. Most of us now have easy access to options previously unavailable. That’s expanded our horizons.

But computers also threaten to change the way we think, which would be a negative development. That’s because computers cannot think in the nuanced way that people do, although there are commendable efforts to move them in that direction. It would be a mistake, though, for us to attempt to meet them halfway.

From the computer’s perspective, everything is binary. That means either/or, odd/even, black/white. It has difficulty handling things in the middle like shades of gray. It lives by rigid rules (ultimately created by human programmers) and tends to create new ones.

Jessie Gruman
President and Executive Director
Center for the
Advancement of Health

So a crude computer can tell you, knowing nothing more than your gender and height, that it is prudent to consume 2400 calories a day, but excessive to eat 3000. And while that may be a valid general rule, it ain’t necessarily so for any individual.

This presents a continuing challenge for the health behavior community. On the one hand, computers are a wonderful tool that works cheap. You can reach millions with an online test at a fraction of the cost of face-to-face interviews.

But the binary focus of computers makes them a blunt tool, probably useful at sorting people into broad groups, but quite limited when it comes to analyzing their particular problems and coming up with appropriate responses.

Computers can tell us what portion of our population is overweight and what part of that group is obese, which helps analyze the dimensions of the problem. But beyond giving the most general advice (eat right, exercise more), it cannot (yet) generate prescriptions that individuals can rely on.

Simply knowing someone’s ZIP code is sometimes adequate for determining whether there are affordable health clubs in their neighborhood. But even that is a very broad cut. Telling someone who’s juggling two full-time jobs to get the health club more often probably isn’t terribly helpful.

In my ideal world, computer and human skills would complement one another. Computers could alert us to possible problems and refer us to people to who could evaluate the severity of the threat and suggest a response. In an environment where individuals are given increasing responsibility for their care, computers can provide counsel on when it’s appropriate to consult a higher authority with human intelligence.

We don’t live in such a world yet and there’s no reason to believe that it is just around the corner. There’s a lot of chatter about coming up with computerized medical records that would basically help us care for the sick more effectively.

We need a program to educate the public about using computers to help decide whether and when they need medical attention. That could create a more efficient system for the majority who are generally well.

FROM THE HEALTH BEHAVIOR NEWS SERVICE

The Health Behavior News Service regularly distributes stories summarizing new research on health behavior issues. These stories can be found online at http://www.cfah.org/hbns/current.cfm.

Here are some stories released in November:

Pneumococcal Infection Rates Drop, Despite Uneven Childhood Vaccination
Since its addition to the list of routine immunizations, one childhood vaccine has helped prevent some pneumococcal- related illness, including pneumonia and otitis media. The percentage of children receiving pneumococcal vaccines is rising steadily. But fewer than half of children receive the immunizations according to the recommended schedule.

Education Gap Associated With Higher Death Rates Across Ethnic Groups
New research suggests that about 215,000 fewer Americans would die each year if they had the same death rates as college graduates.

Smokers Who Quit Have Less Money Stress
There are many health benefits of quitting a smoking habit and a new study has proven that quitting can benefit your pocketbook as well.

Linking Doctors’ Pay to Performance Has Little Effect on Diabetes Outcomes
Linking doctors’ pay to how well they follow treatment guidelines can improve quality of care but not health outcomes, according to a study of 1,666 poor, uninsured patients with diabetes.

PET Scans Useful for Some Cancer Treatment, But How Do Patients Fare?
Positron emission tomography or PET scans can help clinicians diagnose and treat some cancers, but it is not clear yet whether the imaging technology helps people with cancer live longer and healthier lives.

Obesity, Smoking, Alcoholism Escalate Costs to Military Health Plan
Diseases caused by obesity, tobacco use and alcohol abuse account for a whopping 16 percent of the $12.8 billion that the military’s managed-care plan spends annually on the health of the nation’s defenders under age 65 and their dependents, according to a new study.