Age-within-school-class and adolescent gun-carrying

Area of Science:

• Public Health
• Adolescent Health
• Injury Prevention

Background:

• Intentional injuries, including suicide and homicide, are a major cause of death in the U.S., with firearms accounting for 70% of fatalities.
• Known risk factors for gun-carrying in adolescents include male gender, substance use, and sexual behavior.
• Relative age within a school class is an easily measurable factor linked to behavioral issues and dropout rates.

Purpose of the Study:

• To investigate the association between being older within a school grade and the likelihood of carrying firearms among adolescents.
• To identify potential indicators for firearm carrying behavior in student populations.

Main Methods:

• Utilized data from the Massachusetts Youth Risk Behavior Survey (MYRBS).
• Analyzed a randomly selected cohort of 3153 Massachusetts students in grades 9-11.
• Employed multivariate logistic regression to compare firearm carrying odds based on relative age within class.

Main Results:

• Older age within class was a significant predictor of gun-carrying (OR: 2.12).
• Other significant risk factors included male gender, black race, gang membership, missing school due to safety concerns, seeking medical treatment after a fight, and fighting without seeking treatment.
• Specific odds ratios were provided for each identified risk factor.

Conclusions:

• Older students in 9th, 10th, and 11th grades demonstrate a higher propensity to carry firearms compared to their younger peers.
• This age-related finding can assist in identifying high-risk students.
• The results support the development of targeted prevention programs for adolescent firearm violence.