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. Author manuscript; available in PMC: 2015 Jul 1.
Published in final edited form as: J Pain Symptom Manage. 2014 Mar 15;48(1):65–74. doi: 10.1016/j.jpainsymman.2013.08.020

Table 4.

Regression Analysis of Age, Gender, and CPI as Predictors of Acute Care Utilization Events

Time Variable Estimate Std Error z value P-value
Visit 1 Age −0.019 0.008 −2.285 0.024
Gender −0.027 0.187 −0.144 0.886
CPI 0.025 0.006 3.841 <0.001
Visit 2 Age −0.019 0.009 −2.168 0.032
Gender −0.114 0.195 −0.582 0.562
CPI 0.014 0.006 2.185 0.031