JAMA

Overall population health in U.S. has improved, but lags behind other wealthy nations July 18, 2013 | Journal of the American Medical Association
study on overall population health in U.S.
In a major study that includes data on the status of population health from 34 countries from 1990-2010, overall population health improved in the United States during this period, including an increase in life expectancy; however, illness and chronic disability now account for nearly half of the health burden. Improvements in the U.S. have not kept pace with advances in population health in other wealthy nations, according to the study published online by JAMA.
HPV vaccine
With the number of doses and cost of human papillomavirus (HPV) vaccines a barrier to global implementation, researchers have found that girls who received two doses of HPV vaccine had immune responses to HPV-16 and HPV-18 infection that were noninferior to (not worse than) the responses for young women who received three doses, according to a study in the May 1 issue of JAMA, a theme issue on child health. The authors note that more data on the duration of protection are needed before reduced-dose schedules can be recommended.
Hospital readmission for older patients often for different illness February 18, 2013 | Journal of the American Medical Association
Among approximately 3 million Medicare patients hospitalized for heart failure, heart attack or pneumonia, readmissions were frequent throughout the 30 days following the hospitalization, and resulted from a wide variety of diagnoses that often differed from the cause of the index hospitalization, according to a study appearing in the January 23/30 issue of JAMA.
Vitamin D shows no major effect on pain or slowing progression of knee osteoarthritis January 24, 2013 | Journal of the American Medical Association
In a two year randomized trial, patients with symptomatic knee osteoarthritis who received vitamin D supplementation did not have a significant difference in knee pain or cartilage volume loss compared to patients who received placebo, according to a study appearing in the Jan. 9 issue of JAMA.