Published online July 1, 2005
PEDIATRICS Vol. 116 No. 1 July 2005, pp. 96-103 (doi:10.1542/10.1542/peds.2004-1326)
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Comparison of Minitrampoline- and Full-Sized Trampoline-Related Injuries in the United States, 1990–2002

Brenda J. Shields, MS*, Soledad A. Fernandez, PhD{ddagger} and Gary A. Smith, MD, DrPH*,§

* Center for Injury Research and Policy, Columbus Children's Research Institute, Children's Hospital, Columbus, Ohio
{ddagger} Center for Biostatistics, Ohio State University, Columbus, Ohio
§ Department of Pediatrics, Ohio State University College of Medicine and Public Health, Columbus, Ohio

Objective. To compare mini- and full-sized trampoline–related injuries in the United States.

Methods. A retrospective analysis of data was conducted for all ages from the National Electronic Injury Surveillance System (NEISS) of the US Consumer Product Safety Commission from 1990 to 2002. We compared 137 minitrampoline-related injuries with 143 full-sized trampoline–related injuries, randomly selected from all full-sized trampoline–related injuries reported to the NEISS during the study period.

Results. Patients ranged in age from 1 to 80 years (mean [SD]: 13.9 [17.7]) and 2 to 52 years (mean [SD]: 11.0 [8.0]) for mini- and full-sized trampoline–related injuries, respectively. Most patients were younger than 18 years (82% mini, 91% full-sized). Thirty-two percent of minitrampoline- and 19% of full-sized trampoline–related injuries were to children who were younger than 6 years; girls predominated (63% mini, 51% full-sized). Children who were younger than 6 years were more likely to be injured on a minitrampoline than on a full-sized trampoline, when compared with 6- to 17-year-olds (odds ratio [OR]: 2.43; 95% confidence interval [CI]: 1.33–4.47). The majority of injuries occurred at home (87% mini, 89% full-sized). All patients who were injured on a minitrampoline were treated and released, whereas 5% of patients who were injured on a full-sized trampoline were admitted to the hospital. On minitrampolines, children who were younger than 6 years were at risk for head lacerations (OR: 4.98; 95% CI: 1.71–16.03), and children who were 6 to 17 years were at risk for lower extremity strains or sprains (OR: 6.26; 95% CI: 1.35–59.14). Children who were 6 to 17 years and injured on a full-sized trampoline were at risk for lower extremity strains or sprains (OR: 4.85; 95% CI: 1.09–44.93). Lower extremity strains or sprains were the most common injury sustained by adults (18 years and older; 33% mini, 15% full-sized).

Conclusions. Injury patterns were similar for mini- and full-sized trampolines, although minitrampoline–related injuries were less likely to require admission to the hospital and more commonly resulted in head lacerations among children who were younger than 6 years. Risk for injury could not be determined because of the lack of data regarding duration of exposure to risk. We therefore conclude that the use of full-sized trampolines by children should follow the policy recommendations of the American Academy of Pediatrics. Trampolines, including minitrampolines, should be regarded as training devices and not as toys. Until more data are available regarding exposure to risk, we caution against the use of the minitrampoline as a play device by children in the home, which is where most minitrampoline-related injuries occur.

Key Words: trampoline • minitrampoline • injury

Abbreviations: AAP, American Academy of Pediatrics • CPSC, United States Consumer Product Safety Commission • ED, emergency department • NEISS, National Electronic Injury Surveillance System • OR, odds ratio • CI, confidence interval

Accepted Oct 14, 2004.


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