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. Author manuscript; available in PMC: 2010 May 19.
Published in final edited form as: Med Care. 2009 Sep;47(9):1031–1035. doi: 10.1097/MLR.0b013e3181a81181

TABLE 3.

Effect of Label Change on Outcomes in Prevalent Users

Parameter Outpatient Events/100 Subjects
 Inpatient Events/100 Subjects
Estimate (95% CI) P Estimate (95% CI) P
Baseline rate in non-Target users −13.78 (13.16, 14.4) <0.001 1.06 (0.81, 1.31) <0.001
Pre May 05 slope in non-Target users 0.1 (0, 0.2) 0.043 0.02 (−0.02, 0.06) 0.320
Baseline rate difference between Target and non-Target users 0.85 (−0.01, 1.72) 0.053 −0.26 (−0.62, 0.1) 0.153
Pre May 05 slope difference between Target and non-Target users 0.05 (−0.09, 0.19) 0.467 0.04 (−0.02, 0.09) 0.186
Intercept effect of label change 0.04 (−1.25, 1.34) 0.946 −0.39 (−0.91, 0.14) 0.143
Slope change post May05 in non-Target users −0.07 (−0.2, 0.05) 0.243 0.02 (−0.04, 0.07) 0.545
May 05 intercept change in non-Target users 0.2 (−0.72, 1.12) 0.661 −0.22 (−0.59, 0.15) 0.241
Slope effect of label change −0.07 (−0.25, 0.11) 0.462 −0.04 (−0.12, 0.04) 0.293