TY - JOUR PY - 2021// TI - Associations between meteorological factors and emergency department visits for unintentional falls during Ontario winters JO - Health promotion and chronic disease prevention in Canada A1 - Huynh, David A1 - Tracy, Caleigh A1 - Thompson, Wendy A1 - Bang, Felix A1 - McFaull, Steven R. A1 - Curran, Jaymes A1 - Villeneuve, Paul J. SP - 401 EP - 412 VL - 41 IS - 12 N2 - 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.

Language: fr

LA - fr SN - 2368-738X UR - http://dx.doi.org/10.24095/hpcdp.41.12.01 ID - ref1 ER -