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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 4.

Stepwise linear regression analyses of predictor variables for positive affect with measures of physical health

b SE b β (beta) F-change R2 R2 change
General Health

Step 1: 29.023*** 0.119 0.119
 Age −0.561 0.066 −0.277***
 Sex 0.647 1.683 0.013
 Income 1.913 0.567 0.109**
 Trauma Load −0.972 0.240 −0.131***
Step 2: 44.856*** 0.202 0.083
 Age −0.575 0.063 −0.283***
 Sex 2.937 1.623 0.058
 Income 1.048 0.548 0.060
 Trauma Load −0.397 0.258 −0.054
 PSS Score 0.083 0.085 0.042
 BDI Score −0.658 0.081 −0.330***
Step 3: 11.305** 0.212 0.010
 Age −0.549 0.063 −0.271***
 Sex 2.991 1.613 0.059
 Income 0.921 0.546 0.052
 Trauma Load −0.378 0.257 −0.051
 PSS Score 0.067 0.085 0.034
 BDI Score −0.537 0.088 −0.269***
 PANAS Positive 0.317 0.094 0.118**

Bodily Pain

Step 1: 23.635*** 0.098 0.098
 Age −0.677 0.082 −0.272***
 Sex −1.431 2.100 −0.023
 Income 1.381 0.704 0.064
 Trauma Load −1.163 0.298 −0.127***
Step 2: 43.499*** 0.180 0.082
 Age −0.713 0.078 −0.287***
 Sex 1.183 2.025 0.019
 Income 0.435 0.681 0.020
 Trauma Load 0.028 0.322 0.003
 PSS Score −0.352 0.107 −0.144**
 BDI Score −0.507 0.101 −0.206***
Step 3: 0.504 0.181 0.001
 Age −0.706 0.079 −0.284***
 Sex 1.196 2.026 0.019
 Income 0.402 0.682 0.019
 Trauma Load 0.034 0.322 0.004
 PSS Score −0.356 0.107 −0.146**
 BDI Score −0.475 0.111 −0.193***
 PANAS Positive 0.084 0.118 0.025

Physical Functioning

Step 1: 21.737*** 0.116 0.116
 Age −0.757 0.090 −0.312***
 Sex −3.834 2.230 −0.065
 Income 2.658 0.791 0.123**
 Trauma Load −0.325 0.319 −0.038
Step 2: 12.002*** 0.147 0.031
 Age −0.764 0.089 −0.315***
 Sex −2.069 2.223 −0.035
 Income 2.058 0.788 0.095**
 Trauma Load 0.192 0.357 0.022
 PSS Score −0.042 0.122 −0.018
 BDI Score −0.415 0.114 −0.177***
Step 3: 6.161* 0.154 0.008
 Age −0.735 0.090 −0.303***
 Sex −1.940 2.215 −0.033
 Income 1.956 0.786 0.091*
 Trauma Load 0.217 0.356 0.025
 PSS Score −0.052 0.121 −0.022
 BDI Score −0.297 0.123 −0.126*
 PANAS Positive 0.324 0.130 0.102*

Role – Physical

Step 1: 17.112*** 0.092 0.092
 Age −0.690 0.100 −0.259***
 Sex −0.127 2.461 −0.002
 Income 2.616 0.871 0.111**
 Trauma Load −0.735 0.352 −0.078*
Step 2: 24.409*** 0.154 0.062
 Age −0.718 0.096 −0.270***
 Sex 2.427 2.411 0.037
 Income 1.685 0.853 0.071*
 Trauma Load 0.310 0.386 0.033
 PSS Score −0.318 0.131 −0.125*
 BDI Score −0.455 0.123 −0.177*** 3.630 0.158 0.005
Step 3:
 Age −0.693 0.097 −0.261***
 Sex 2.534 2.407 0.039
 Income 1.595 0.853 0.068
 Trauma Load 0.328 0.385 0.035
 PSS Score −0.324 0.131 −0.127*
 BDI Score −0.357 0.133 −0.139**
 PANAS Positive 0.270 0.142 0.078
*

P<.05

**

P<.01

***

P<.001

1

Lower self-reported pain is reported as higher scores on the respective SF-36 measure