Risk of Avalanche Involvement in Winter Backcountry Recreation: The Advantage of Small Groups Benjamin Zweifel, MSc, PhD, Emily Procter, MSc, Frank Techel,

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Presentation transcript:

Risk of Avalanche Involvement in Winter Backcountry Recreation: The Advantage of Small Groups Benjamin Zweifel, MSc, PhD, Emily Procter, MSc, Frank Techel, MSc, Giacomo Strapazzon, MD, PhD, Roman Boutellier Wilderness & Environmental Medicine Volume 27, Issue 2, Pages 203-210 (June 2016) DOI: 10.1016/j.wem.2015.12.001 Copyright © 2016 Wilderness Medical Society Terms and Conditions

Figure 1 Registration board at Tschuggen in the Flüela Valley, Davos, Switzerland. Wilderness & Environmental Medicine 2016 27, 203-210DOI: (10.1016/j.wem.2015.12.001) Copyright © 2016 Wilderness Medical Society Terms and Conditions

Figure 2 Distribution of group sizes from the 3 Swiss usage datasets compared with the Swiss accident data (top three) as well as the Italian usage dataset compared with the Italian accident data (bottom). Wilderness & Environmental Medicine 2016 27, 203-210DOI: (10.1016/j.wem.2015.12.001) Copyright © 2016 Wilderness Medical Society Terms and Conditions

Figure 3 Relative risk of group size 1, 3, 4, 5, and 6 or more compared with the reference group (size 2) in the 3 Swiss usage datasets and for the Italian dataset. The size of the bullet points indicates the significance level. Wilderness & Environmental Medicine 2016 27, 203-210DOI: (10.1016/j.wem.2015.12.001) Copyright © 2016 Wilderness Medical Society Terms and Conditions