Table 3.
Mediation Analysis Demonstrating the Relationship of Treatment and Hypothesized Mediators on Cancer-Related Body Image Distress (Body Image Scale score)
| Effect of BRIGHT on Mediating Variable (a path) |
Effect of Mediating Variable on BIS score (b path) |
Average Direct Effect of BRIGHT on BIS score (c’ path) |
Total Effect of BRIGHT on BIS score (c path) |
Average Causal Mediated Effect of BRIGHT on BIS score (a x b) |
||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Mediatora | Estimate (90% CI) |
p | Estimate (90% CI) |
p | Estimate (90% CI) |
p | Estimate (90% CI) |
p | Estimate (90% CI) |
p |
| Δ BICSI Avoidance score | ||||||||||
| Baseline to 1-week |
−2.4
(−4.0,−0.7) |
0.021 |
0.9
(0.4,1.3) |
0.003 | 0.4 (−2.6,3.1) |
0.88 | −1.7 (−5.0,1.1) |
0.31 |
−2.1
(−4.1,−0.5) |
0.024 |
| Baseline to 1-month |
−2.9
(−5.1,−0.8) |
0.026 |
0.8
(0.4,1.2) |
0.002 | −2.0 (−5.0,1.1) |
0.28 |
−4.3
(−7.6,−1.2) |
0.016 |
−2.3
(−4.8,−0.5) |
0.019 |
| Δ BICSI Appearance Fixing score | ||||||||||
| Baseline to 1-week |
−3.3
(−5.8,−0.8) |
0.035 |
0.4
(0.1,0.7) |
0.042 | −0.4 (−3.3,2.3) |
0.76 | −1.7 (−5.0,1.1) |
0.31 |
−1.3
(−2.9,0.2) |
0.054 |
| Baseline to 1-month |
−3.1
(−6.0,−0.3) |
0.069 |
0.4
(0.1,0.7) |
0.027 |
−3.0
(−5.7,−0.2) |
0.078 |
−4.3
(−7.6,−1.2) |
0.016 |
−1.3
(−3.3,−0.0) |
0.086 |
| Δ BICSI Positive Rational Acceptance score | ||||||||||
| Baseline to 1-week | −2.1 (−4.9,0.6) |
0.20 | 0.0 (−0.3,0.4) |
0.83 | −1.6 (−5.0,1.3) |
0.36 | −1.7 (−5.0,1.1) |
0.31 | −0.1 (−1.2,0.9) |
0.92 |
| Baseline to 1-month | 0.7 (−2.2,3.6) |
0.70 | 0.2 (−0.1,0.5) |
0.33 |
−4.4
(−7.6,−1.2) |
0.024 |
−4.3
(−7.6,−1.2) |
0.016 | 0.1 (−0.8,0.9) |
0.90 |
a
Each analysis was conducted evaluating the mediator at 1-week post intervention and the outcome variable (BIS) at 1-month post-intervention (first row for each mediator); and mediator at 1-month post intervention and the outcome variable (BIS) at 3-months post-intervention (second row for each mediator)
b
Each model adjusts for all three mediators at baseline and the BIS score at baseline
Abbreviations: BICSI = Body Image Coping Skills Inventory; BIS = Body Image Scale