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Public Health Rep. 2018 Sep/Oct;133(5):570-577. doi: 10.1177/0033354918785909. Epub 2018 Aug 1.

Incidence, Distribution, and Cost of Lawn-Mower Injuries in the United States, 2006-2013.

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1 Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
2 Department of Surgery, Division of Pediatric Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
3 Department of Surgery, Johns Hopkins Surgery Center for Outcomes Research, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
4 Department of Anesthesiology, McMaster Children's Hospital, Hamilton Health Sciences University, Hamilton, Ontario, Canada.
5 Department of Anesthesiology and Critical Care Medicine, Division of Pediatric Anesthesiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.



Characterization of the epidemiology and cost of lawn-mower injuries is potentially useful to inform injury prevention and health policy efforts. We examined the incidence, distribution, types and severity, and emergency department (ED) and hospitalization charges of lawn-mower injuries among all age groups across the United States.


This retrospective, cross-sectional study used nationally representative, population-based (all-payer) data from the US Nationwide Emergency Department Sample for lawn-mower-related ED visits and hospitalizations from January 1, 2006, through December 31, 2013. Lawn-mower injuries were identified by using International Classification of Diseases, Ninth Revision, Clinical Modification code E920 (accidents caused by a powered lawn mower). We analyzed data on demographic characteristics, age, geographic distribution, type of injury, injury severity, and hospital charges.


We calculated a weighted estimate of 51 151 lawn-mower injuries during the 8-year study period. The most common types of injuries were lacerations (n = 23 907, 46.7%), fractures (n = 11 433, 22.4%), and amputations (n = 11 013, 21.5%). The most common injury locations were wrist or hand (n = 33 477, 65.4%) and foot or toe (n = 10 122, 19.8%). Mean ED charges were $2482 per patient, and mean inpatient charges were $36 987 per patient. The most common procedures performed were wound irrigation or debridement (n = 1436, 29.9%) and amputation (n = 1230, 25.6%).


Lawn-mower injuries occurred at a constant rate during the study period. Changes to nationwide industry safety standards are needed to reduce the frequency and severity of these preventable injuries.


burden of disease; emergency care; epidemiology; lawn-mower injuries; morbidity and mortality trends; noncommunicable disease; public health

[Available on 2019-09-01]
[Indexed for MEDLINE]

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