Skip to main content

Table 5 The performance of the Amsterdam Wrist Rules at external validation (N = 395)

From: The Amsterdam wrist rules: the multicenter prospective derivation and external validation of a clinical decision rule for the use of radiography in acute wrist trauma

All Fractures   
 Amsterdam Wrist Rules indicate X-ray 215 139
 Amsterdam Wrist Rules indicate no X-ray 4 37
 Total 219 176
 Sensitivity (%) 98.2 (95.1–99.4)
 Specificity (%) 21.0 (15.4–27.9)
Distal Radius Fractures   
 Amsterdam Wrist Rules indicate X-ray 179 158
 Amsterdam Wrist Rules indicate no X-ray 3 53
 Total 184 211
 Sensitivity (% [95 % CI]) 98.4 (96.5–100.0)  
 Specificity (% [95 % CI]) 25.1 (19.3–31.0)  
  1. Abbreviations: CI Confidence Interval
  2. The cut-off point for X-ray yes or no was a predicted probability of 21 % for all fractures and 4 % for only distal radius fractures