Injury prevention : journal of the International Society for Child and Adolescent Injury Prevention
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To evaluate whether helmets increase the incidence and/or severity of cervical spine injury; decrease the incidence of head injury; and/or increase the incidence of collisions (as a reflection of adverse effects on peripheral vision and/or auditory acuity) among young skiers and snowboarders. ⋯ This study suggests that, in skiers and snowboarders under 13 years of age, helmet use does not increase the incidence of cervical spine injury and does reduce the incidence of head injury requiring investigation and/or treatment.
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Cross sectional studies in the United States often find a significant positive association between levels of household firearm ownership and suicide rates. This study investigates whether the association can be explained by differences in levels of mental health. ⋯ In United States regions with higher levels of household handgun ownership, there are higher suicide rates. This relationship cannot be explained by differences in the prevalence of two mental health indicators-lifetime rates of either major depression or suicidal thoughts.
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Comparative Study
Underestimates of unintentional firearm fatalities: comparing Supplementary Homicide Report data with the National Vital Statistics System.
A growing body of evidence suggests that the nation's vital statistics system undercounts unintentional firearm deaths that are not self inflicted. This issue was examined by comparing how unintentional firearm injuries identified in police Supplementary Homicide Report (SHR) data were coded in the National Vital Statistics System. ⋯ Official data from the National Vital Statistics System almost certainly undercount firearm accidents when the victim is shot by another person.