Fleegler and colleagues review the association of US firearm laws with number of firearm-related fatalities. In the Invited Commentary, Wintemute further discusses US firearm violence.
In a population population-based case-control study using nationwide Danish databases, Johannesdottir et al evaluated 38 765 cases of venous thromboembolism to determine whether there is an association between this condition and use of glucocorticoids. Katz provides a comment.
Berry et al performed a case-crossover study to estimate the association between nonbenzodiazepine hypnotic drug use and the risk for hip fracture among a nationwide sample of 15 528 long-stay US nursing home residents 50 years or older as documented in Medicare claims between July 1, 2007, and December 31, 2008. See the invited commentary by Widera.
Beatty et al determine the association of high-sensitivity cardiac troponin T levels with structural and functional measures of heart disease and secondary cardiovascular events. See editor’s note by O’Malley.
Chowdhary et al performed a retrospective study of medical records for all patients diagnosed as having methemoglobinemia during a 10-year period after the following procedures: esophagogastroduodenoscopy, transesophageal echocardiogram, endoscopic retrograde cholangiopancreatography, bronchoscopy, and nasogastric tube placement. Each case was compared with matched inpatient and outpatient cases. See the editor’s note by Katz.
Heyland et al inquired about patients’ advance care planning activities before hospitalization and preferences for care from the perspectives of patients and family members, measuring real-time concordance between expressed preferences for care and documentation of those preferences in the medical record.
Clarke and colleagues report an intervention to enhance long-term smoking cessation after a period of forced smoking abstinence. In an Invited Commentary, Puisis discusses further.
Barnes et al performed a randomized controlled trial to examine the combined effects of physical plus mental activity on cognitive function in 126 communityresiding older adults with cognitive complaints. An invited commentary by Lautenschlager and Cox follows.
Kerlikowske et al aim to extend the literature by reporting whether the benefits (detection of early-stage disease) and harms (false-positive mammography result or biopsy recommendation) differ among women undergoing screening mammography in community practice by screening frequency according to age, breast density, and postmenopausal hormone therapy use.