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Table 3 The guideline-updating process by numbers of years developing guidelines (n = 36)a

From: The updating of clinical practice guidelines: insights from an international survey

  Numbers of years developing guidelines Total  
  ≤ 10 years > 10 years    
  n (%) n (%) n (%) p b
Formal procedure to update guidelines        
   Yes 9 (69.2) 22 (95.7) 31 (86.1) .047
   No 4 (30.8) 1 (4.3) 5 (13.9)  
Time frame to check updating        
   3-5 years 7 (53.8) 15 (65.2) 22 (61.1) .094
   < 3 years 3 (23.1) 8 (34.8) 11 (30.6)  
   Varies 3 (23.1) --   3 (8.3)  
Rigor of the updating process        
   Could certainly be more rigorous 8 (61.5) 5 (21.7) 13 (36.1) .039
   Moderately rigorous 4 (30.8) 9 (39.1) 13 (36.1)  
   Very rigorous 1 (7.7) 9 (39.1) 10 (27.8)  
  1. aAnalysis of institutions updating guidelines; bFisher's exact test.