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Table 1 Characteristics of Medical Emergency Team calls

From: Using Medical Emergency Teams to detect preventable adverse events

Characteristic All Patients with preventable AEs Patients without preventable AEs P value
Number 65 16 49 N/A
Age, years 71 (60–81) 76 (68–82) 68 (59–81) 0.32
Service     0.02
   A 12 (18%) 1 (6%) 11 (22%)  
   B 8 (12%) 2 (13%) 6 (12%)  
   C 7 (11%) 5 (31%) 2 (4%)  
   D 5 (8%) 2 (13%) 3 (6%)  
   E 5 (8%) 1 (6%) 4 (8%)  
   F 4 (6%) 2 (13%) 2 (4%)  
   Other 24 (37%) 3 (19%) 21 (43%)  
Admission status     0.31
   Acute 59 (91%) 14 (88%) 45 (92%)  
   Chronic 6 (9%) 2 (13%) 4 (8%)  
Length of stay, daysa 4 (2–12.5) 4 (3–21) 4 (2–11) 0.51
Call indication     0.23
   Blood pressure 23 (35%) 5 (31%) 18 (37%)  
   Airway 11 (17%) 1 (6%) 10 (20%)  
   Heart rate 8 (12%) 3 (19%) 5 (10%)  
   Oxygen saturation 9 (14%) 3 (19%) 6 (12%)  
   Respiratory rate 2 (3%) 1 (6%) 1 (2%)  
   Urine output 1 (2%) 1 (6%) 0  
   Other 11 (17%) 2 (13%) 9 (18%)  
Time of dayb     
   Day (8 a.m.-5 p.m.) 32 (49%) 6 (38%) 26 (53%)  
   Night (5 p.m.-8 a.m.) 33 (51%) 10 (63%) 23 (47%)  
  1. Values other than P value and number of patients are presented as median (range) or as number (percentage). P value represents the probability of an error when concluding that the characteristic differs by adverse event (AE) status. aLength of stay in hospital before Medical Emergency Team (MET) call; btime of day of MET call. N/A, not applicable.