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Table 2 Restrictive approach results

From: Efficiency of pragmatic search strategies to update clinical guidelines recommendations

  Major depression in adults 2008 [19] Obesity in childhood and adolescence 2009 [20] Prostate cancer treatment 2008 [21] Secondary prevention of stroke 2009 [22] Total
Search period (years) 4.8   3.9   4.5   5.1    
References retrieved in search for clinical guidelines, n
- Broad filter 9223   10561   6939   13294   40017  
- Narrow filter 2814   3976   976   2187   9953  
Key references identified from recommendation sample, n (%)a
- Exhaustive approachb 13   16   4   13   46  
- Broad filter           
by individual clinical questions 5 38.5 11 68.8 4 100.0 6 46.2 26 56.5
by clustering all clinical questions 11 84.6 16 100.0 4 100.0 9 69.2 40 87.0
- Narrow filter           
by individual clinical questions 4 30.8 11 68.8 4 100.0 6 46.2 25 54.3
by clustering all clinical questions 10 76.9 16 100.0 4 100.0 9 69.2 39 84.8
Potential update recommendations identified from recommendation sample, n (%)a
- Exhaustive approachb 3   6   4   7   20  
- Broad filter           
by individual clinical questions 3 100.0 4 66.7 4 100.0 4 57.1 15 75.0
by clustering all clinical questions 3 100.0 6 100.0 4 100.0 5 71.4 18 90.0
- Narrow filter           
by individual clinical questions 2 66.7 4 66.7 4 100.0 4 57.1 14 70.0
by clustering all clinical questions 2 66.7 6 100.0 4 100.0 5 71.4 17 85.0
  1. aPercentage of references and recommendations identified regarding the exhaustive strategy
  2. bExhaustive strategy results without clinical questions and recommendations not included in ReSe strategy