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Table 1 Effectiveness of specific intervention components

From: The relationship between organisational characteristics and the effects of clinical guidelines on medical performance in hospitals, a meta-analysis

  n Total comparisons OR (95%CI)  
Total effect 81 2.13 (1.72–2.65)  
Single interventions 22 2.18 (1.62–2.94)  
Multifaceted interventions 59 1.77 (1.36–2.31)  
Single intervention strategies    
Reminders 18 2.14 (1.49–3.07)  
Feedback 4 2.33 (1.32–4.10)  
Components of multifaceted intervention strategies n Unadjusted Odds ratios OR (95%CI) Adjusted Odds ratios # OR (95%CI)
Educational meeting (ab) 34 1.98 (1.39–2.82) 0.66 (0.25–1.76)
Educational material (bc) 41 2.13 (1.60–2.84) 1.84 (1.09–3.11)
Consensus meeting (ad) 6 1.35 (0.73–2.49) 0.76 (0.56–1.04)
Reminders (ac) 54 2.10 (1.61–2.75) 1.92 (1.39–2.65)
Feedback (ac) 20 2.01 (1.28–3.18) 2.50 (1.38–4.52)
Patient mediated (abc) 12 2.00 (1.08–3.70) 0.64 (0.16–2.54)
Outreach 2 1.67 (0.70–4.01) Na
Opinion leader 5 1.51 (1.13–2.02) na
Revision of professional roles (abc) 13 2.57 (1.13–5.87) 9.78 (3.22–29.70)
Financial 3 3.16 (0.40–24.9) Na
Organisational (abce) 15 1.89 (1.12–3.20) 8.41 (0.81–87.2)
  1. n: number of comparisons, OR: Odds ratios (95% confidence intervals) of intervention versus control
  2. # adjusted for other intervention components if present in > 1/3 of the comparisons.
  3. Adjusted for (a): educational material, (b): reminders (c): educational meeting (d): feedback (e): revision of professional roles, na: not available due to small numbers.