 | A LETTER FROM THE EDITOR-IN-CHIEF | |
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| Dear Reader, |
| 2017 was the year of big data. One study took data from 61 million Americans and looked at the association between air pollution and mortality. The trial found that for every increase of 10 μg per cubic meter in fine particulate matter (PM2.5), there was an associated 7.3% increase in all-cause mortality. These findings stress the need for tighter regulation of air-pollutant levels, and make the point that we still have time to make a difference. |
| Another study analyzed data from 68.5 million people from 195 countries to find the trends in the prevalence of overweight and obesity among children and adults between 1980 and 2015. This study found that the global obesity epidemic is worsening in most parts of the world, but — as with the air pollution study — our future is not immutable. |
| As the medical information published in NEJM is regularly used in daily practice, we ensure each paper published meets exacting standards for editorial quality, clinical relevance, and impact on patient outcomes. Among all papers published in 2017, this “most notable” collection was selected by the editors as being the most meaningful in improving medical practice and patient care. We hope that you will take valuable insights from these articles. |
| Sincerely, |
Jeffrey M. Drazen, M.D.
Editor-In-Chief, The New England Journal of Medicine
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