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. Author manuscript; available in PMC: 2014 Feb 15.
Published in final edited form as: Br J Health Psychol. 2012 Aug 22;18(2):420–438. doi: 10.1111/j.2044-8287.2012.02085.x

Table 3.

Linear regression of log interleukin-6 on Positive Relationships, Autonomy, and their interactions with gender in a sample of older adults in Kentucky

Variable β p Total R2 R2 Δ p
Model 1: IL-6 (log10 transformation)
Step 1 .17 .17 <.01
 Gender −.01 .92
 Age .18 .08
 Body Mass Index (BMI) .33 <.01
 Statin Use −.01 .91
 Beta-blocker Use .16 .11
Step 2 .18 .01 .22
 Positive Relationships −.12 .22
Step 3 .18 .002 .59
 Positive Relationships x Gender −.17 .59
Step 4 .18 .001 .77
 Positive Relationships2 −.02 .77
Step 5 .19 .001 .74
 Positive Relationships2 x Gender −.04 .75
Model 2: IL-6 (log10 transformation)
Step 1 .17 .17 <.01
 Gender −.01 .92
 Age .18 .07
 Body Mass Index (BMI) .33 <.01
 Statin Use −.01 .91
 Beta-blocker Use .16 .11
Step 2 .17 .003 .58
 Autonomy −.05 .58
Step 3 .17 .001 .70
 Autonomy x Gender −.12 .70
Step 4 .17 .000 .85
 Autonomy2 −.02 .85
Step 5 .21 .04 .04
 Autonomy2 x Gender .69 .04

Note.

*

p < .05. For R2 values, an asterisk indicates that the F value for the ANOVA of the full model at that step is significant. For ΔR2, an asterisk indicates that the inclusion of that step’s novel predictor produced an F value than was significantly greater than that of the previous model.