Prevalence of indications of alcohol and drug use among patients treated for injurious falls by Emergency Medical Services in the USA.

Objective: The association between alcohol consumption and increased injuries from falls is well established, but there is a lack of data on the prevalence of substance use by fall type. This study aims to describe the distribution of alcohol and drug involvement in injurious falls.

Methods: Using the 2019 National Emergency Medical Services (EMS) Information System data set, we identified 1 854 909 patients injured from falls requiring an EMS response and determined the fall location (eg, indoors or on street/sidewalk). We analysed data on the EMS clinician's notation of alcohol or drug involvement and Glasgow Coma Scale.

Results: Overall, for 7.4% of injurious falls, there was a notation of substance use: 6.5% for alcohol alone, 0.6% for drugs and 0.3% for alcohol and drugs. 21.2% of falls that occurred on a street or sidewalk had a notation of substance use. Substance use prevalence was highest, at 30.3%, in the age group 21-64 years, for falls occurring on streets and sidewalks, without syncope or heat illness as contributing factors. Reported substance use involvement was more frequent for men compared with women for each location type. Glasgow Coma Scale scores indicative of moderate or severe trauma were more prevalent among falls involving alcohol and/or drugs.

Conclusions: Overall, one in five injurious falls on streets and sidewalks and requiring EMS attention involved substance use, and these numbers likely underestimate the true burden. As cities seek to expand nightlife districts, design strategies to protect pedestrians from falls should be enacted.