The Association Between Substance Use and Violence: Results from a Nationally Representative Sample of High School Students in the United States.

With over 52% of high school students reporting that they have tried alcohol or illicit drugs, 16% carrying a weapon, and 23% engaging in a physical fight, substance use and youth violence remain critical public health challenges in the United States. Using data from the 2017 Youth Risk Behavior Survey, study results revealed that youth who reported heavy use of either alcohol, marijuana, or illicit drugs were three to ten times more likely to report carrying a weapon or engaging in a physical fight. Similarly, youth with heavy substance use were one and half times to 14 times more likely to be a victim of violence or sexual or dating violence.

"All boats will rise": Physicians' perspectives on multidisciplinary lung cancer care in a community-based hospital setting.

Purpose: We explored the perceived strengths, barriers to implementation, and suggestions for sustainable implementation of a multidisciplinary model within a community-based hospital system from the physicians' perspectives.

Methods: We conducted 9 focus groups with 37 physicians involved in the care of lung cancer patients. Grounded theory methodology guided the identification of recurrent themes that emerged from the qualitative data analysis.

Bone Accrual in Children and Adolescent Nonelite Swimmers: A 2-Year Longitudinal Study.

Objective: To examine differences in bone mass between children and adolescents swimming competitively at nonelite levels (locally and regionally) and nonathletes and to assess changes in bone mass in these 2 groups over 24 months after taking into consideration several known confounders of bone mass.

Design: Observational prospective study.

Participants: White nonelite swimmers (n = 128) and nonathletes (n = 106) 8 to 18 years of age from Memphis, Tennessee, USA.

Comparison of nutritional intake in US adolescent swimmers and non-athletes.

Swimming is a very popular sport among adolescents in the US. Little is known about the diet of competitive adolescent swimmers in the US but data from other countries indicate several inadequacies, including excessive intake of fat and lower than recommended intake of carbohydrate and several micronutrients that may affect athletic performance and bone accrual. We assessed usual diet, using a food frequency questionnaire and calcium checklist, among 191 adolescent males and females [91 swimmers (mean 13.