initiation rates increased rapidly after age 10 years and peaked at age 13 and 14 years. Students who began smoking at age 12 years or younger were more likely to be regular and heavy smokers than were students who began smoking at older ages.
Conclusions. These data suggest that smoking initiations at a young age can increase the risk of nicotine addiction during adolescence and that sports participation may influence smoking behavior. Interventions to prevent smoking should be available before age 12 years to help combat the smoking epidemic among youth.
Blunt Trauma in Children: Causes and Outcomes of Head Versus Extracranial Injury. I. Lescohier, and C. DiScala. Pediatrics, 91(4), 721-725. A subset of the National Pediatric Trauma Registry was analyzed to describe causes and outcomes of blunt trauma among children younger than age 15 years. This subset, of 8,639 children with blunt trauma, was divided into three groups according to the injured body region: a group with extracranial injury only (ECI) accounted for one half of the population, and the remainder were equally distributed between a group with head injury only (HI) and one with both conditions (ECI + HI). The three groups were compared with respect to demographic characteristics, external cause of injury, injury severity, and outcomes. Falls were the leading cause of injury in the HI group, where c h i l d r e n were younger, whereas traffic-related injuries predominated in children with ECI or ECI + HI. Pedestrian injuries accounted for a significant share of poor outcomes. The highest proportion of deaths and severe injuries were observed in the mixed group (ECI + HI), and the lowest, in the ECI group. In contrast, functional impairments at discharge were most frequently noted in the ECI group, where 60% of the children were discharged with at least one impairment. While only 6% of children with HI were discharged with impairment, those affected exhibited more deficits in cognition and behavior, which are expected to persist longer than dysfunction in activities of daily living.
Winter 1993~Volume24~Number4
Women's Gymnastic Injuries: A 5-year Study. W. A. Sands, B. B. Schultz, and A. P Newman. The American Journal of Sports Medicine, 21(2), 271-276. A 5-year prospective study on the time course of women's gymnastics injuries was conducted on a successful NCAA Division I team. Gymnasts recorded injuries on a computer terminal or via computer dot sheets immediately before each training session, including the injured body part, the event or activity, and the date of the injury. The definition of injury was "any damaged body part that would interfere with training." Athletes recorded injuries on the 1st day of onset and subsequently until the injury was healed. The initial onset of injury was considered a new injury. Subsequent records of the injury were considered continuing injury. Thirty-seven athletes participated through five collegiate seasons. They accounted for 5,602 total training exposures with an average of 151.4 exposures per athlete. The analyses showed that gymnasts trained with an injury approximately 71% of the exposures, and a new injury could be expected from a gymnast during approximately 9% of the exposures. The largest number of injuries were the repetitive stress syndrome type. The time series information showed that total injuries tended to increase until the middle of the competitive season, while new injuries showed prominent increases during specific training periods and during competition preparation and performance.
Women's Intercollegiate Gymnastics: Injury Patterns and "Permanent" Medical Disability. G. H. Wadley and J. P Albright. The American Journal of Sports Medicine, 21(2), 314-320. A prospective study was established to record the patterns of injury incurred by all members of a women's college gymnastics team. Twenty-six women were followed over a 4-year period (53 gymnast seasons) from 1983 to 1987. To identify which injuries resulted in persisting impairment, these same athletes were contacted again 3 years later. The 26 athletes sustained 106 injuries. Sixty (57%) of these were of acute onset and were
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