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Table 5 Percentage of patients involved in aggressive incidents (n = 2017)*

From: Frequency and severity of aggressive incidents in acute psychiatric wards in Switzerland

  Patients involved in ...
  ... all incidents ... incidents with SOAS-R-severity ≥ 9 ... physical attacks ... incidents requiring treatment of the victim
Incidents per patient n % n % n % n %
0 1755 87.0% 1827 90.6% 1881 93.3% 1977 98.0%
1 153 7.6% 130 6.4% 97 4.8% 34 1.7%
2 52 2.6% 70 3.5% 26 1.3% 6 0.3%
3–5 34 1.7% 18 0.9% 10 0.5%   
6–10 16 0.8% 4 0.2% 2 0.1%   
11–20 4 0.2% 3 0.1% 1 0.0%   
>20 3 0.1%       
Total 2017 100.0% 2017 100.0% 2017 100.0% 2017 100.0%
≥ 1 Incidence 262 13.0% 190 9.4% 136 6.7% 40 2.0%
Patients accounting for 50% of incidents 38 1.9% 41 2.0% 58 2.9 3 0.1%
  1. * Calculations based on index episode (one per patient); 636 incidents, 338 severe incidents, 185 physical attacks, 46 incidents requiring treatment