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Table 1 Alcohol- and cannabis use characteristics 6 hours prior to injury and in the control period

From: Alcohol and cannabis use as risk factors for injury – a case-crossover analysis in a Swiss hospital emergency department

   men (n = 332) women (n = 154) total (n = 486)
Drinking     
   Just prior to injury yes 28.3 16.9 24.7
   A week prior to injury yes 19.6 11.0 16.9
Drinking levels among user     
   Just prior to injury low 30.9 30.8 30.8
  medium 21.3 26.9 22.5
  high 47.9 42.3 46.7
   A week prior to injury low 51.7 50.0 51.3
  medium 20.0 31.3 22.4
  high 28.3 18.8 26.3
Cannabis use     
   Just prior to injury yes 4.2 0.0 2.9
   A week prior to injury yes 6.3 1.9 4.9
Use levels among user     
   Just prior to injury < 1 joint/pipe 42.9 n.a. 29.3
  1 joint/pipe 35.7 n.a. 24.4
  > 1 joint/pipe 21.4 n.a. 14.6
   A week prior to injury < 1 joint/pipe 14.3 0.0 12.5
  1 joint/pipe 42.9 33.3 41.7
  > 1 joint/pipe 42.9 66.7 45.8
Joint use     
   Just prior to injury none 69.0 83.1 73.5
  alcohol only 26.8 16.9 23.7
  cannabis only 2.7 n.a. 1.9
  both 1.5 n.a. 1.0
   A week prior to injury none 76.5 87.7 80.0
  alcohol only 17.2 10.4 15.0
  cannabis only 3.9 1.3 3.1
  both 2.4 0.6 1.9
  1. Alcohol consumption:
  2. low: less than 20 grams for men and 10 grams for women;
  3. medium: 20 to 40 grams for men, 10 to 30 grams for women;
  4. high: more than 40 grams for men, more than 30 grams for women;
  5. n.a. not applicable; no cannabis use 6 hours prior to injury among women.
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