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. Author manuscript; available in PMC: 2013 Dec 1.
Published in final edited form as: Pain Med. 2012 Nov 8;13(12):1648–1657. doi: 10.1111/j.1526-4637.2012.01513.x

Table 5.

Regression model predicting current number of treatments used, treatments previously used, and visits to providers from depression, pain intensity, and their interaction

Variable Current treatments being used Treatments previously used Visits to providers
β t p-value R2Δ F(R2Δ) p-value β t p-value R2Δ F(R2Δ) p-value β t p-value R2Δ F(R2Δ) p-value
Overall model F(3, 109) = 3.080, p < 0.05 F(3, 109) = 6.027, p < 0.01 F(3, 109) = 0.656, p = 0.581
Block 1 0.01 0.92 0.340 0.09 10.31 0.002 0.01 0.52 0.472
 Depression 0.09 0.96 0.340 0.29 3.21 0.002 0.07 0.72 0.472
Block 2 0.07 8.21 0.005 0.05 6.63 0.011 0.00 0.42 0.521
 Pain intensity 0.28 2.86 0.005 0.24 2.58 0.011 0.64 0.52 0.521
Block 3 0.00 0.13 0.721 0.01 0.67 0.414 0.01 1.03 0.312
 Pain intensity X Depression 0.09 0.36 0.721 0.20 0.82 0.414 0.26 1.02 0.312