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. Author manuscript; available in PMC: 2015 Feb 17.
Published in final edited form as: J Pain. 2013 Oct 12;15(2):169–180. doi: 10.1016/j.jpain.2013.09.015

Table 3.

Final multiple logistic regression model with phenotypic characteristics that predicted pain class membership

GMM Class
Comparison		 Predictor Odds
Ratio		 Standard
Error		 95% CI Z p-value
Self-reported race/ethnicity
  White versus Black 0.01 0.02 0.00, 0.95 −1.98 0.047
  White versus Asian/Pacific Islander 0.08 0.16 0.00, 3.40 −1.31 0.189
  White versus Hispanic/mixed/other 0.23 0.32 0.01, 3.68 −1.04 0.298
Pain in the breast prior to surgery 8.71 9.03 1.14, 66.48 2.09 0.037
Severity of average postoperative pain 2.02 0.35 1.43, 2.84 4.01 <0.0001
Overall model fit: χ2 = 47.38; p <0.0001; R2 = 0. 4006

Abbreviations: CI = confidence interval; GMM = growth mixture model