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Table 1 Studies identified according to key features and predominant intervention strategy

From: Interventions designed to improve the quality and efficiency of medication use in managed care: A critical review of the literature – 2001–2007

  Educational Monitoring & Feedback Formulary* Collaborative Care Involving Pharmacists Disease Management† TOTAL
All studies 20 22 66 15 41 164
Methodologically acceptable studies 7 16 15 5 8 51
   RCT 5 10 2 3 7 27
   Interrupted time series 0 5 5 0 0 10
   Pre/post studies with comparison 2 1 8 2 1 14
Interventions in methodologically acceptable studies 17 18 21 5 8 69
  1. * published studies from 1966 through January 2007.
  2. † Only studies with pharmacotherapy as a primary focus.
  3. ‡ Studies may have examined more than one intervention and multiple studies may have examined the same intervention