This case-control study investigates the association between influenza vaccination and subsequent hospitalization for community-acquired influenza pneumonia.
To study the association between use of acid-suppressing medications and vitamin B12 deficiency, Lam and coauthors conducted a case-control study to compare exposures and outcomes among 25 956 patients having incident diagnoses of vitamin B12 deficiency with those among 184 199 patients without B12 deficiency.
Moses and coauthors used public data, principally from 1980 to 2011, to describe and document the current anatomy and historical trends of health care in the United States.
This Special Communication summarizes published evidence about the causes of elevated prescription drug prices in the United States and proposes policy options to mitigate the effects of high prices while preserving incentives for development and innovation.
This guideline from the Centers for Disease Control and Prevention makes 12 recommendations to improve communication about opioids for chronic pain, to improve the safety and effectiveness of pain treatment, and to reduce risks associated with long-term opioid therapy.
This statement from the International Antiviral Society–USA updates recommendations for the use of antiretroviral drugs (ARVs) to treat adults with established HIV infection and to prevent HIV infection among persons at risk of infection.
This study uses polling data and published surveys, state and country databases, interview studies, and death certificate studies to review the legal status of euthanasia and physician-assisted suicide and the available data on attitudes and practices in the United States, Canada, and Europe.