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. Author manuscript; available in PMC: 2019 Sep 1.
Published in final edited form as: J Psychiatr Res. 2018 Jun 12;104:24–31. doi: 10.1016/j.jpsychires.2018.06.008

Table 6.

Stepwise linear regression analyses of predictor variables of positive affect with serum CRP concentrations.

b SE b β (beta) F-change R2 R2 change
Serum CRP
Step 1: 6.958*** 0.172 0.172
 Age −0.032 0.044 −0.053
 Sex 1.562 1.060 0.109
 Income −0.783 0.380 −0.145*
 Trauma Load 0.096 0.161 0.043
 BMI 0.302 0.063 0.352***
Step 2: 0.078 0.173 0.001
 Age −0.033 0.044 −0.055
 Sex 1.547 1.074 0.108
 Income −0.784 0.384 −0.146
 Trauma Load 0.105 0.179 0.048
 BMI 0.299 0.064 0.348***
 PSS Score −0.021 0.061 −0.036
 BDI Score 0.022 0.058 0.038
Step 3: 1.333 0.180 0.007
 Age −0.037 0.044 −0.061
 Sex 1.436 1.078 0.101
 Income −0.783 0.384 −0.145
 Trauma Load 0.090 0.180 0.041
 BMI 0.301 0.063 0.349**
 PSS Score −0.015 0.061 −0.026
 BDI Score −0.007 0.063 −0.013
 PANAS Positive −0.088 0.076 −0.095