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J Am Med Inform Assoc 13:593-600 doi:10.1197/jamia.M2158
  • The Practice of Informatics

McMaster PLUS: A Cluster Randomized Clinical Trial of an Intervention to Accelerate Clinical Use of Evidence-based Information from Digital Libraries

Table 4

Average Percentage (and 95% CI) of Users Per Month

Study Group Baseline Intervention Period Control-Crossover Period
Full-Serve (n = 98) 43.7 (16.4, 71.0) 50.3 (47.4, 53.3) 44.9 (39.4, 50.3)
Self-Serve (n = 105) 40.8 (10.5, 71.1) 32.0 (27.5, 36.5) 43.0 (34.3, 51.8)
Absolute difference 2.9 (−31.0, 36.8) 18.3 (13.2, 23.4) 1.9 (−6.7, 10.4)
Relative difference 7.1 (−22.5, 48.4) 57.2 (12.0, 123.5) 4.4 (−23.7, 43.0)

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