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Table 3 Methods used to present probabilistic information

From: A review of decision support, risk communication and patient information tools for thrombolytic treatment in acute stroke: lessons for tool developers

  Textual Numerical Graphical
  Verbal descriptors Percentages Number needed to treat/harm Frequencies Pie chart Bar graph Pictogram/graph
Patient Information Tool 16 (94) 11 (65) 5 (29) 13 (77) 0 (0) 2 (12) 1 (6)
Risk Communication Tool 3 (60) 4 (80) 0 (0) 5 (100)* 1 (20) 0 (0) 4 (80)
Brief Decision Aid 0 (0) 3 (100) 0 (0) 0 (0) 1 (33) 0 (0) 0 (0)
Standardised Information 1 (100) 0 (0) 0 (0) 1 (100) 0 (0) 0 (0) 0 (0)
Overall 20 (77) 18 (69) 5 (19) 19 (73) 2 (8) 2 (8) 5 (19)
  1. Figures are frequencies (percentage frequencies).
  2. * one risk communication tool showed frequencies graphically.