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Health Statistics and You

health-statistics
Preventive Care is the Best Care
In health care, an ounce of prevention is worth very much more than a pound of cure. If you can prevent health problems from happening, you save a great deal of time, effort, and money. Also, by avoiding the frequently ongoing stress and anxiety associated with treatment of a chronic illness, you and your family conserve precious, irreplaceable personal resources such as peace of mind.

A comprehensive preventive care program incorporates a healthy food plan, consistent regular exercise, and regular chiropractic care. Regular chiropractic care, focusing on the spinal column and targeting nerve interference, is a key resource in your health care program. Regular chiropractic care provides the framework so that your body can function at peak efficiency, thus helping ensure your long-term health and well-being.

We are awash in numbers, thanks in large part to the proliferation of personal mobile devices and the wrong-headed use of so-called big data.1 But applying statistical tools to the same set of data can support competing theories and lead to contradictory results. Such conflicting outcomes, known as antinomies if you remember Philosophy 101, cannot logically co-exist, and the field of statistics gets a bad reputation as a result. But big data can provide substantial value for people as individual patients. The key is to set some ground rules and understand the limitations of statistical investigation.

First and foremost, it's important to gain some clarity regarding the concept of false positives in regards to health. This statistical construct is familiar to all of us, although we may not be aware of it. If one of your doctors sends you for a laboratory test and the results are "positive", you'll be sent for follow-up tests until a final determination is made. If the final test turns out "negative", then the earlier results represented a false positive. The test results said you had the condition or disease, but in fact you did not.

False positives create numerous serious problems, not the least of which is the emotional toll of stress, anxiety, and fear experienced by the patient and her family and close friends. This is especially true when the suspected disease is a malignancy or other serious, life-threatening condition. It's useful and empowering for people to learn that 5% of all test results are falsely positive right from the start. Medical tests are designed this way. The 5% false positive rate is a necessary part of statistical analysis. It's built-in to the statistical design. In other words, test values that represent "normal" are obtained by cutting off the bottom 2.5% and the top 2.5% of a large sample of results from people who are "normal" for the thing being tested, such as white blood cell count or hemoglobin level.

Thus, 5% of normal people automatically have false positive results. Another way of stating this outcome is to consider that if you undergo a panel of 20 blood tests, one result (5% of 20) will be positive no matter what.

The vast majority of patients are not familiar with the statistical concept of false positive results.2 With a basic understanding of this construct and its implications, patients could ask their doctors meaningful questions such as, "What do the test results mean?,", "Have you considered the possibility of a false positive result?," and "How will the additional tests you're recommending affect decision-making in my case?"

Posing such questions is tremendously empowering for you, the patient, and helps reestablish equity in the doctor-patient relationship.3 As a health care consumer, a little knowledge goes a long way. Gaining more than a little knowledge by reading articles on diagnostic methods and health care decision-making will further strengthen your own process as a patient. 

1Bates DW, et al: Big data in health care: using analytics to identify and manage high-risk and high-cost patients. Health Aff (Millwood) 33(7):1123-31, 2014
2Paddock SM: Statistical benchmarks for health care provider performance assessment: a comparison of standard approaches to a hierarchical Bayesian histogram-based method. Health Serv Res 49(3):1056-73, 2014
3Stacey D, et al: Decision aids for people facing health treatment or screening decisions. Cochane Database Syst Rev 28;1:CD001431, 2014

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Testimonial

I am so thrilled to have come across this little gem of a place! I had the pleasure of meeting this beautiful couple this past week and was able to get in to the clinic for a chiropractic adjustment. I currently live about an hour away from the wellness center, but I'll be making the drive just to see them for my health needs. Dr. Drew was so attentive and thorough. He really listened to me and we discussed what I was accustomed to as far as treatment goes. He takes careful time with each client and truly cares about your health. After 15 years of visiting many different chiropractic doctors, I can quickly get a read on the type of care I'll receive. I immediately felt at ease and confident with him. I was able to chat with his lovely wife, Alexis, as well and am anxious to set up an appointment with her. This is no ordinary wellness center. They offer so many options for treating a vast amount of health challenges. They see and treat the body as a whole, which is the only way to find true health.

Kari Powell, February 2017

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