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. Author manuscript; available in PMC: 2013 Aug 1.
Published in final edited form as: Pain Med. 2012 Jul 3;13(8):1004–1017. doi: 10.1111/j.1526-4637.2012.01405.x

Table 4.

Impact of Organization and Provider Characteristics on Providers Practices measured by Cancer Pain Practice Index (CPPI)

variables/category estimates of coefficients in the model p-value CPPI comparison1 exp(est.)
Intervention2 <0.0001
Patient Age <.0001
 <=74 0.0954 <.0001 1.1001
 75–84 0.0231 0.2215 1.0234
 >=85 Reference Reference Reference
Hospice Size <0.0001
 small 0.1128 <.0001 1.1194
 medium −0.2563 <0.0001 0.7739
 large Reference Reference Reference
Interaction of Size & Intervention3 <0.0001
Nurse Education Level 0.0260
 %BSN or above ≥ 0.4 0.0583 0.0260 1.0600
 %BNS or above < 0.4 Reference Reference Reference
Interaction of Nurse Education
Level & Intervention3 <0.0001
Nurse Certification <0.0001
 %Certification ≥ 0.2 0.0628 <0.0001 1.0648
 %Certification < 0.2 Reference Reference Reference
Interaction of Nurse Certification & Intervention3 <0.0001
Nurse Case Load <.0001
 > 10 0.2483 <.0001 1.2878
 ≤ 10 Reference Reference Reference
Interaction of Case Load & Intervention3 <.0001
Contrast
EPI – EB4 0.0529 0.3752 1.0543
CPI – CB5 0.3877 0.0391 1.4736
(EPI – EB) – (CPI – CB)6 −0.3348 0.0615 0.7155
1

Ratio of the mean CPPI for a particular group relative to the mean CPPI for the reference group

2

The Intervention variable is based on four categories: Experimental Baseline (EB) – baseline data for the experimental group, Experimental Post Intervention (EPI) – post-intervention data for the experimental group, Control Baseline (CB) – baseline data for the control group, and Control Post Intervention (CPI) – post-intervention data for the control group.

3

Interactions test whether the effect of a variable on the mean CPPI depends on the category of the Intervention variable.

4

The contrast (EPI – EB) tests the improvement of the mean CPPI from baseline to post intervention in the experimental group.

5

The contrast (CPI – CB) tests the improvement of the mean CPPI from baseline to post intervention in the control group.

6

The contrast (EPI – EB) – (CPI – CB) compares the improvements on the mean CPPI from baseline to post intervention in the experimental group and in the control group.