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Introduction to Primary Care

The Institute of Medicine defines primary care as “the provision of integrated, accessible healthcare services by clinicians who are accountable for addressing a large majority of personal health care needs, developing a sustained partnerships with patients, and practicing in the context of family and community.”

 

Better primary care leads to better health outcomes. This has been demonstrated across health care systems and across nations since the 1960s. Most of the evidence supporting primary care is observational and it is hard to sort out the covariates, causation, and determinants of health, all of which are extremely complex. Nevertheless, a large body of evidence supports the substantial impact of primary care on health.

Outcomes associated with primary care

  • Increased life expectancy
  • Lower costs
  • Fewer preventable admissions
  • Earlier cancer detection

Life expectancy is higher in US states that have higher primary care physician to population ratios. Each additional primary care physician per 10,000 population is associated with an average increase of about two years in life expectancy. 

Another study showed that American adults who called their personal physician a primary care doctor rather than a specialist had 33% lower cost of care and a 19 % lower risk of death.

In the United States, a study of Medicare beneficiaries in fair or poor health showed that one of the strongest predictors of a preventable hospitalization was living in a primary care shortage area.  Areas with better primary care have better health outcomes including lower total, cardiovascular and infant mortality as well as earlier detection of colorectal, breast, uterine and cervical cancer.

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The Foundations of Clinical Medicine Copyright © by Karen McDonough. All Rights Reserved.

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