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. 2013 Dec 19;21:89. doi: 10.1186/1757-7241-21-89

Table 3.

Principal reasons for upgrading of priority grade between the initial call and examination of the patient

 
Upgradings to red
All upgradings
 
Reason N % N %  
Patient examination necessary for clarification
6
46
13
50
 
Accurate information not collected or available
5
38
7
27
 
Impairment between stages
2
15
6
23
 
Total 13 100 26 100