scholarly journals Enhanced Surveillance of Nonfatal Emergency Department Opioid Overdoses in California

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Natalie Demeter ◽  
Jaynia Angela Anderson ◽  
Mar-y-sol Pasquires ◽  
Stephen Wirtz
Keyword(s):  
Emergency Department ◽  
Drug Overdose ◽  
Health Planning ◽  
Age Groups ◽  
Emergency Department Visits ◽  
Public Health Issue ◽  
Opioid Overdose ◽  
Heroin Overdose ◽  
Drug Overdoses ◽  
Ed Visits

ObjectiveTo track and monitor nonfatal emergency department opioid overdoses in California for use in the statewide response in the opioid epidemic.IntroductionThe opioid epidemic is a multifaceted public health issue that requires a coordinated and dynamic response to address the ongoing changes in the trends of opioid overdoses. Access to timely and accurate data allows more targeted and effective programs and policies to prevent and reduce fatal and nonfatal drug overdoses in California. As a part of a Centers for Disease Control and Prevention Enhanced State Opioid Overdose Surveillance grant, the goals of this surveillance are to more rapidly identify changes in trends of nonfatal drug overdose, opioid overdose, and heroin overdose emergency department visits; identify demographic groups or areas within California that are experiencing these changes; and to provide these data and trends to state and local partners addressing the opioid crisis throughout California. Emergency department (ED) visit data are analyzed on an ongoing quarterly basis to monitor the proportion of all ED visits that are attributed to nonfatal drug, opioid, and heroin overdoses as a portion of the statewide opioid overdose surveillance.MethodsCalifornia emergency department data were obtained from the California Office of Statewide Health Planning and Development. Data were (and continue to be) analyzed by quarter as the data become available, starting in quarter 1 (Q1) 2016 through Q1 2018. Quarters were defined as standard calendar quarters; January-March (Q1), April-June (Q2), July-September (Q3), and October-December (Q4). Counts of nonfatal ED visits for all drug overdoses, all opioid overdoses, and heroin overdoses were defined by the following ICD-10 codes in the principle diagnosis or external cause of injury fields respectively; T36X-T50X (all drug), T40.0X-T40.4X T40.6 and T40.69 (all opioid), and T40.1X (heroin). Eligible ED visits were limited to CA residents, patients greater than 10 years of age, initial encounters, and were classified as unintentional overdoses or overdoses of undetermined intent. Overdose ED visits are described by quarter, drug, sex, and age for Q1 2016 – Q1 2018.ResultsOn average, 6,450 emergency department visits in California are attributed to drug overdose every quarter. Between Q1 2016 and Q1 2018, on average 1,785 (range: 1,559-2,011 ED visits) of those visits were due to opioid overdoses and a further 924 (52%) of those ED visits were due to heroin overdoses. About 26-30% of all drug overdose ED visits were for opioid overdoses in California during Q1 2016 – Q1 2018. Quarterly, that is around 6.00-7.64 opioid overdose ED visits for every 10,000 ED visits (Table 1), with about half those (3.09-4.30 ED visits) being heroin overdose ED visits. Males accounted for approximately 52% of all drug overdose ED visits, 65% of all opioid overdose ED visits, and 76% of all heroin overdose ED visits per quarter. Across all quarters, 25-34 year olds had the highest proportion of emergency department visits attributed to opioid and heroin overdose compared to all other age groups. However, 11-24 year olds had the highest proportion of emergency department visits attributed to all drug overdoses compared to all other age groups for all quarters except one. Between Q1 2016 and Q1 2018, the proportion of emergency department visits attributed to all drug overdoses increased by 1.8%, all opioid overdoses increased 3.1%, and heroin overdoses increased by 13.5%.ConclusionsOverall trends for the proportion of all emergency department visits for all drug overdoses and all opioid overdoses are relatively stable over this time period, however the proportion of heroin overdose ED visits shows a more substantial increase between Q1 2016 and Q1 2018. In addition, heroin overdose ED visits account for over half of all opioid overdose ED visits during this time in California. Ongoing surveillance of drug, opioid, and heroin overdose ED visits is a crucial component of assessing and responding to the opioid overdose crisis in California and helps to better understand the demographics of those who could be at risk of a future fatal opioid overdose. Timely data such as these (in addition to prescribing, hospitalization, and death data) can inform local and statewide efforts to reduce opioid overdoses and deaths. 

scholarly journals Emergency Department Visits for Opioid Overdoses Among Patients With Cancer

2019 ◽  
Vol 112 (9) ◽  
pp. 938-943 ◽  
Author(s):  
Vikram Jairam ◽  
Daniel X Yang ◽  
James B Yu ◽  
Henry S Park
Keyword(s):  
At Risk ◽  
Emergency Department ◽  
Statistical Tests ◽  
Temporal Trends ◽  
The United States ◽  
Emergency Department Visits ◽  
Multivariable Logistic Regression Analysis ◽  
Opioid Overdose ◽  
Patients With Cancer ◽  
Ed Visits

Abstract Background Patients with cancer may be at risk of high opioid use due to physical and psychosocial factors, although little data exist to inform providers and policymakers. Our aim is to examine overdoses from opioids leading to emergency department (ED) visits among patients with cancer in the United States. Methods The Healthcare Cost and Utilization Project Nationwide Emergency Department Sample was queried for all adult cancer-related patient visits with a primary diagnosis of opioid overdose between 2006 and 2015. Temporal trends and baseline differences between patients with and without opioid-related ED visits were evaluated. Multivariable logistic regression analysis was used to identify risk factors associated with opioid overdose. All statistical tests were two-sided. Results Between 2006 and 2015, there were a weighted total of 35 339 opioid-related ED visits among patients with cancer. During this time frame, the incidence of opioid-related ED visits for overdose increased twofold (P < .001). On multivariable regression (P < .001), comorbid diagnoses of chronic pain (odds ratio [OR] 4.51, 95% confidence interval [CI] = 4.13 to 4.93), substance use disorder (OR = 3.54, 95% CI = 3.28 to 3.82), and mood disorder (OR = 3.40, 95% CI = 3.16 to 3.65) were strongly associated with an opioid-related visit. Patients with head and neck cancer (OR = 2.04, 95% CI = 1.82 to 2.28) and multiple myeloma (OR = 1.73, 95% CI = 1.32 to 2.26) were also at risk for overdose. Conclusions Over the study period, the incidence of opioid-related ED visits in patients with cancer increased approximately twofold. Comorbid diagnoses and primary disease site may predict risk for opioid overdose.

Emergency department visits for prescription and synthetic opioid overdoses among patients with cancer.

2019 ◽  
Vol 37 (15_suppl) ◽  
pp. 6579-6579
Author(s):  
Vikram Jairam ◽  
Daniel X. Yang ◽  
James B. Yu ◽  
Henry S. Park
Keyword(s):  
Cervical Cancer ◽  
Emergency Department ◽  
Cancer Patients ◽  
The United States ◽  
Emergency Department Visits ◽  
Cancer Site ◽  
Opioid Overdose ◽  
Patients With Cancer ◽  
Rate Of Increase ◽  
Ed Visits

6579 Background: Patients with cancer may be at high risk of opioid dependence due to physical and psychosocial factors, although little data exists to inform providers and policymakers. Our aim is to examine overdoses from prescription and synthetic opiates leading to emergency department (ED) visits among patients with cancer in the United States. Methods: The Healthcare Cost and Utilization Project Nationwide Emergency Department Sample (HCUP-NEDS) was queried for all patient visits with a primary diagnosis of prescription or synthetic opioid overdose between 2006 and 2015. Baseline differences between patients with and without cancer were assessed using chi-square and ANOVA testing. Overdose rates by primary cancer site were normalized using prevalence data from the Surveillance, Epidemiology, and End Results (SEER) Program. Weighted frequencies were used to create national estimates for all data analyses. Results: There were 682,820 weighted ED visits for synthetic opioid overdose, among which 34,547 (5.1%) visits were also associated with a diagnosis of cancer. During this timeframe, ED visits for opioid overdose among patients with cancer increased 2.5-fold, compared to 1.7-fold among those without cancer. 16.5% of patients with cancer had metastatic disease. Patients with cancer presenting for opioid overdose had higher risk of hospital admission (74.8% vs 49.6%), respiratory intubation (13.2% vs 12.2%), mortality (2.1% vs 1.1%), and cost-of-hospital-stay ($32,665 vs $31,824) compared to their non-cancer counterparts (all P < 0.05). Primary cancers with the highest normalized overdose rates (ED visits per 10,000 patients) were esophagus (134), liver & intrahepatic bile duct (124), and cervical cancer (124). Other common cancers had the following normalized overdose rates: lung (105), head and neck (70), and breast (26). Conclusions: Approximately 5% of all ED visits due to prescription and synthetic opioid overdose are among patients with cancer. The rate of increase in ED visits due to opioid overdose from cancer patients was nearly 50% higher than that from non-cancer patients over the 10-year study period. Patients with esophageal, liver, and cervical cancer may be at highest risk.

scholarly journals Hospitalizations and Emergency Department Visits for TBI in Ontario

2010 ◽  
Vol 37 (6) ◽  
pp. 783-790 ◽  
Author(s):  
Angela Colantonio ◽  
Cristina Saverino ◽  
Brandon Zagorski ◽  
Bonnie Swaine ◽  
John Lewko ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Emergency Department ◽  
Brain Injury ◽  
Age Groups ◽  
National Registry ◽  
Emergency Department Visits ◽  
Elderly Persons ◽  
Discharge Abstract Database ◽  
Episodes Of Care ◽  
Ed Visits

AbstractObjective:The aim of this study was to determine the number of annual hospitalizations and overall episodes of care that involve a traumatic brain injury (TBI) by age and gender in the province of Ontario. To provide a more accurate assessment of the prevalence of TBI, episodes of care included visits to the emergency department (ED), as well as admissions to hospital. Mechanisms of injury for overall episodes were also investigated.Methods:Traumatic brain injury cases from fiscal years 2002/03-2006/07 were identified by means of ICD-10 codes. Data were collected from the National Ambulatory Care Reporting System and the Discharge Abstract Database.Results:The rate of hospitalization was highest for elderly persons over 75 years-of-age. Males generally had higher rates for both hospitalizations and episodes of care than did females. The inclusion of ED visits to hospitalizations had the greatest impact on the rates of TBI in the youngest age groups. Episodes of care for TBI were greatest in youth under the age of 14 and elderly over the age of 85. Falls (41.6%) and being struck by or against an object (31.1%) were the most frequent causes for a TBI.Conclusions:The study provides estimates for TBI from the only Canadian province that has systematically captured ED visits in a national registry. It shows the importance of tracking ED visits, in addition to hospitalizations, to capture the burden of TBI on the health care system. Prevention strategies should include information on ED visits, particularly for those at younger ages.

scholarly journals Monitoring Sexual Violence Trends in Emergency Department Visits Using Syndromic Data From the National Syndromic Surveillance Program—United States, January 2017–December 2019

2021 ◽  
Vol 111 (3) ◽  
pp. 485-493
Author(s):  
Ashley Schappell D'Inverno ◽  
Nimi Idaikkadar ◽  
Debra Houry
Keyword(s):  
United States ◽  
Emergency Department ◽  
Sexual Violence ◽  
Syndromic Surveillance ◽  
Age Groups ◽  
The United States ◽  
Emergency Department Visits ◽  
Surveillance Program ◽  
Time Period ◽  
Ed Visits

Objectives. To report trends in sexual violence (SV) emergency department (ED) visits in the United States. Methods. We analyzed monthly changes in SV rates (per 100 000 ED visits) from January 2017 to December 2019 using Centers for Disease Control and Prevention’s National Syndromic Surveillance Program data. We stratified the data by sex and age groups. Results. There were 196 948 SV-related ED visits from January 2017 to December 2019. Females had higher rates of SV-related ED visits than males. Across the entire time period, females aged 50 to 59 years showed the highest increase (57.33%) in SV-related ED visits, when stratified by sex and age group. In all strata examined, SV-related ED visits displayed positive trends from January 2017 to December 2019; 10 out of the 24 observed positive trends were statistically significant increases. We also observed seasonal trends with spikes in SV-related ED visits during warmer months and declines during colder months, particularly in ages 0 to 9 years and 10 to 19 years. Conclusions. We identified several significant increases in SV-related ED visits from January 2017 to December 2019. Syndromic surveillance offers near-real-time surveillance of ED visits and can aid in the prevention of SV.

scholarly journals Identification and Assessment of Repeat Drug Overdose Visits at EDs in Virginia

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Inderbir Sohi ◽  
Erin E Austin ◽  
Jonathan Falk
Keyword(s):  
Medical Record ◽  
Drug Overdose ◽  
Syndromic Surveillance ◽  
Age Groups ◽  
Opioid Overdose ◽  
Medical Record Number ◽  
Significant Difference ◽  
Repeat Visit ◽  
Ed Visits ◽  
Repeat Visits

ObjectiveTo identify and assess the characteristics of individuals with repeated emergency department (ED) visits for unintentional opioid overdose, including heroin, and how they differ from individuals with a single overdose ED visit.IntroductionThe Virginia Department of Health (VDH) utilizes syndromic surveillance ED data to measure morbidity associated with opioid and heroin overdoses among Virginia residents. Understanding which individuals within a population use ED services for repeated drug overdose events may help guide the use of limited resources towards the most effective treatment and prevention efforts.MethodsVDH classified syndromic surveillance visits received from 98 EDs (82 hospitals and 16 emergency care centers) between January 2015 and July 2018. An unintentional opioid overdose, which included heroin, was classified based on the chief complaint and/or discharge diagnosis (ICD-9 and ICD-10) using Microsoft SQL Server Management Studio. ED visits were categorized as either a single or a repeat visit, where a repeat visit was defined as two or more separate ED visit records from the same individual. ED visit records were matched to individuals using medical record number. Each match represented a repeat visit for one person. RStudio was used to conduct Pearson’s chi-square tests for sex, race, and 10-year age groups among both visit groups and to assess visit frequency among the repeat visit group.ResultsBetween January 2015 and July 2018, 9,869 ED visits for opioid overdose were identified, of which 734 (7.4%) were repeat visits among 597 individuals occurring among 57 EDs. The proportion of individuals with repeated opioid overdose visits was significantly different compared to the proportion of individuals with a single opioid overdose visit by sex (male 66% vs. 61%) and age group (20-29 years 34% vs 30%) (p < 0.05). No significant difference was found by race. EDs had an average of 10 individuals who had repeated opioid overdose visits, with a range from 1 to 62 individuals. Individuals with repeated opioid overdose visits made on average 2.2 visits to EDs, with a range of 2 to 6 visits. The overdose visit rate among EDs ranged from 0.6 to 51.3 opioid overdoses per 100,000 ED visits, with four EDs having a rate greater than 40 opioid overdose visits per 100,000 ED visits.ConclusionsApproximately 7% of ED visits during the study period for opioid overdose were identified as repeat visits using the medical record number. Individuals with repeated opioid overdose visits differed from those with a single opioid overdose visit with respect to sex and age. Repeated opioid overdose visits were disproportionately higher for males and individuals aged 20-29. Hospital utilization by individuals with repeated opioid overdose visits can provide information on which EDs or communities that may require further attention. Some limitations of this study are that the method utilized to identify individuals may result in an underestimation of repeat visits because limited personally identifying information was used to match visit records, and repeat visits that occurred before and after the study period would not be captured. 

scholarly journals Trends in inpatient admissions and emergency department visits for heart failure in adults with versus without diabetes in the USA, 2006–2017

2021 ◽  
Vol 9 (1) ◽  
pp. e002377
Author(s):  
Jessica L Harding ◽  
Stephen R Benoit ◽  
Israel Hora ◽  
Lakshmi Sridharan ◽  
Mohammed K Ali ◽  
...  
Keyword(s):  
Heart Failure ◽  
Emergency Department ◽  
Young Adults ◽  
Age Groups ◽  
Emergency Department Visits ◽  
Annual Percent Change ◽  
Men And Women ◽  
Diabetes Status ◽  
Cardiovascular Morbidity And Mortality ◽  
Ed Visits

IntroductionHeart failure (HF) is a major contributor to cardiovascular morbidity and mortality in people with diabetes. In this study, we estimated trends in the incidence of HF inpatient admissions and emergency department (ED) visits by diabetes status.Research design and methodsPopulation-based age-standardized HF rates in adults with and without diabetes were estimated from the 2006–2017 National Inpatient Sample, Nationwide ED Sample and year-matched National Health Interview Survey, and stratified by age and sex. Trends were assessed using Joinpoint.ResultsHF inpatient admissions did not change in adults with diabetes between 2006 and 2013 (from 53.9 to 50.4 per 1000 persons; annual percent change (APC): −0.3 (95% CI −2.5 to 1.9) but increased from 50.4 to 62.3 between 2013 and 2017 (APC: 4.8 (95% CI 0.3 to 9.6)). In adults without diabetes, inpatient admissions initially declined (from 14.8 in 2006 to 12.9 in 2014; APC −2.3 (95% CI −3.2 to –1.2)) and then plateaued. Patterns were similar in men and women, but relative increases were greatest in young adults with diabetes. HF-related ED visits increased overall, in men and women, and in all age groups, but increases were greater in adults with (vs without) diabetes.ConclusionsCauses of increased HF rates in hospital settings are unknown, and more detailed data are needed to investigate the aetiology and determine prevention strategies, particularly among adults with diabetes and especially young adults with diabetes.

scholarly journals EMS Heroin Overdoses with Refusal to Transport & Impacts on ED Overdose Surveillance

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Peter Rock ◽  
Michael Singleton
Keyword(s):  
Emergency Department ◽  
Emergency Medical Services ◽  
Syndromic Surveillance ◽  
Emergency Department Visits ◽  
Medical Services ◽  
Opioid Overdose ◽  
Billing Data ◽  
Heroin Overdose ◽  
Emergency Medical ◽  
Significant Difference

ObjectiveThe aim of this project was to explore changing patterns in patient refusal to transport by emergency medical services for classified heroin overdoses and possible implications on heroin overdose surveillance in Kentucky.IntroductionAs a Centers for Disease Control and Prevention Enhanced State Opioid Overdose Surveillance (ESOOS) funded state, Kentucky started utilizing Emergency Medical Services (EMS) data to increase timeliness of state data on drug overdose events in late 2016. Using developed definitions of heroin overdose for EMS emergency runs, Kentucky analyzed the patterns of refused/transported EMS runs for both statewide and local jurisdictions. Changes in EMS transportation patterns of heroin overdoses can have a dramatic impact on other surveillance systems, such as emergency department (ED) claims data or syndromic surveillance (SyS) data.MethodsAs part of the ESOOS grant, Kentucky receives all emergency-only EMS runs monthly from Kentucky Board for Emergency Medical Services, Kentucky State Ambulance Reporting System data. Heroin cases were classified based on text and medications (Narcan) administered, with comparisons to historic data discussed elsewhere (Rock & Singleton, 2018). Transportation classifications are based on EMS standard elements defining treatment with transportation vs refusal to transport to hospital and canceled runs were excluded. Initial analysis included trend analysis at state and local levels, as well as demographic comparisons of refusal vs transported heroin overdose encounters.ResultsStatewide trends in EMS heroin overdoses with refusal transport significantly increased from 5% (n=42) in 2016 quarter three to 22% (n=290) in 2018 quarter two (Fig 1). Initial demographic analysis does not show any significant difference between refusals/transported for age, gender, or race. However, there are significant differences among geographic regions in Kentucky with heroin encounter refusal proportion ranging from 3%-48% in 2018 quarter two. Specifically, one urban area (Fig 2) shows the change in proportion of refusal increasing from 15% (n=23) in 2016 quarter three to 47% (n=110) in 2018 quarter two. In this geographic area, combined refused/transported EMS heroin overdoses compared to traditional ED data demonstrates opposing heroin overdose patterns for the same local with EMS showing and increasing trend overtime and ED showing a decreasing trend (Fig 3).ConclusionsTraditional public health surveillance for heroin overdose has historically relied on ED billing data, though agencies are starting to use syndromic surveillance, too (Vivolo-Kantor et al., 2016). These systems share similar underlying ED data, albeit with different components, quality, and limitations. However, in terms of the overdose epidemic, both are limited to only heroin overdoses that result in ED hospital encounters. The recent drastic increase in refused transport can have significant impacts on heroin surveillance. Jurisdictions relying on SyS or ED data for monitoring overdose patterns and/or evaluating interventions may be significantly underestimating acute overdose occurrence in the population. This analysis highlights the importance of this preclinical data source in surveillance of the heroin epidemic.ReferencesRock, P. J., & Singleton, M. D. (2018). Assessing Definitions of Heroin Overdose in ED & EMS Data Using Hospital Billing Data, 10(1), 2579.Vivolo-Kantor, A. M., Seth, P., Gladden, ; R Matthew, Mattson, C. L., Baldwin, G. T., Kite-Powell, A., & Coletta, M. A. (2016). Morbidity and Mortality Weekly Report Vital Signs: Trends in Emergency Department Visits for Suspected Opioid Overdoses — United States, 67(9), 279–285. Retrieved from https://www.cdc.gov/mmwr/volumes/67/wr/pdfs/mm6709e1-H.pdf

scholarly journals Unintentional Drug Overdoses in Virginia: Analysis of Syndromic and Death Data

2015 ◽  
Vol 7 (1) ◽  
Author(s):  
Amanda Wahnich ◽  
Kathrin Hobron ◽  
Erin E. Austin ◽  
Tim Powell
Keyword(s):  
At Risk ◽  
Emergency Department ◽  
Drug Overdose ◽  
The United States ◽  
Emergency Department Visits ◽  
Opiate Use ◽  
Accurate Picture ◽  
Drug Overdoses ◽  
Considerable Morbidity ◽  
The Relationship

Substance abuse results in considerable morbidity each year in the United States. The relationship between drug overdose emergency department visits and deaths that opiate use contributed to or caused in Virginia was assessed for 2012-2013 to determine if syndromic surveillance data can be used to provide a real-time and accurate picture of the population at risk for drug overdose. Drug overdose emergency department visits showed divergent demographics from opiate deaths with respect to sex and age distributions. This may indicate a shift in the population previously identified as at risk for drug use morbidity.

scholarly journals Emergency department visits and hospitalisations for emergent asthmatic symptoms from 2014 to 2016: cross-sectional study in Korea

BMJ Open ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. e036237
Author(s):  
Kyungseon Choi ◽  
Sola Han ◽  
Hae Sun Suh
Keyword(s):  
Emergency Department ◽  
Age Groups ◽  
International Classification Of Diseases ◽  
Cross Sectional Study ◽  
Emergency Department Visits ◽  
Resource Utilisation ◽  
Main Diagnosis ◽  
Sectional Study ◽  
Cross Sectional ◽  
Ed Visits

ObjectiveTo evaluate the characteristics of emergent patients with asthma who visited emergency departments (EDs) in Korea, and the consequences of these visits.DesignRetrospective cross-sectional study.SettingWe used data from the National Emergency Department Information System database from 2014 to 2016. The data included reports collected from 408 EDs in Korea.ParticipantsWe analysed the ED cases for asthma-related emergent symptoms that met the following inclusion criteria: (1) had a main diagnosis code of asthma (International Classification of Diseases 10th Revision code: J45/J46), and (2) recorded as an emergent symptom in the EDs.ResultsDuring 2014–2016, there were 58 713 ED visits related to an asthma diagnosis with emergent symptoms. Following an ED visit, 31.69% were hospitalised, of which 89.88% were admitted to the general wards, and 10.12% to the intensive care units (ICUs). More than 50% of the hospitalised cases included in the group ≥70 years of age. The incidence of death during hospitalisation generally increased with age and the proportion of death in ICU exceeded 10% among the group ≥70 years. The ratio of ICU/general ward admission at the arrival time of 0–03:00, in the ≥60 years age group was the highest compared with other times of the day and age groups.ConclusionsWe found that among all age groups, ED visits by older patients resulted in more ICU admissions. Our results can help in providing a better understanding of medical resource utilisation by emergent patients with asthma.

scholarly journals Associations between meteorological factors and emergency department visits for unintentional falls during Ontario winters

2021 ◽  
Vol 41 (12) ◽  
pp. 401-412
Author(s):  
David Huynh ◽  
Caleigh Tracy ◽  
Wendy Thompson ◽  
Felix Bang ◽  
Steven R. McFaull ◽  
...  
Keyword(s):  
Emergency Department ◽  
Meteorological Factors ◽  
Age Groups ◽  
Logistic Models ◽  
Population Based ◽  
Emergency Department Visits ◽  
Falls Prevention ◽  
Increased Risk ◽  
Ed Visits ◽  
Unintentional Falls

Introduction Unintentional falls are a leading cause of injury-related hospital visits among Canadians, especially seniors. While certain meteorological conditions are suspected risk factors for fall-related injuries, few studies have quantified these associations across a wider range of age groups and with population-based datasets. Methods We applied a time-stratified case-crossover study design to characterize associations of highly-spatially-resolved meteorological factors and emergency department (ED) visits for falls, in Ontario, among those aged 5 years and older during the winter months (November to March) between 2011 and 2015. Conditional logistic models were used to estimate the odds ratios (ORs) and their 95% confidence intervals (CIs) for these visits in relation to daily snowfall accumulation, including single-day lags of up to one week before the visit, and daily mean temperature on the day of the visit. Analyses were stratified by age and sex. Results We identified 761 853 fall-related ED visits. The odds for these visits was increased for most days up to a week after a snowfall of 0.2 cm or greater (OR = 1.05–1.08) compared to days with no snowfall. This association was strongest among adults aged 30 to 64 years (OR = 1.16–1.19). The OR for fall-related ED visits on cold days (less than −9.4 °C) was reduced by 0.05 relative to days with an average daily temperature of 3.0 °C or higher (OR = 0.95; 95% CI: 0.94, 0.96), and this pattern was evident across all ages. There were no substantive differences in the strength of this association by sex. Conclusion Snowfall and warmer winter temperatures were associated with an increased risk of fall-related ED visits during Ontario winters. These findings are relevant for developing falls prevention strategies and ensuring timely treatment.

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