Table 8.
Mediator | Longitudinal mediation: Δ in mediators from baseline to 6 months predicting Δ in CRF from 6 to 24 months |
Contemporaneous mediation: Δ in mediators from baseline to 24 months predicting change Δ in CRF from baseline to 24 months |
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---|---|---|---|---|---|---|---|---|
α coefficient (SE) | β coefficient (SE) | α β | Asymmetric confidence limit | α coefficient (SE) | β coefficient (SE) | α β | Asymmetric confidence limit | |
Cons of exercise | ||||||||
Single-mediator model | −0.019 (0.079) | 0.193 (0.305) | −0.004 | −0.042, 0.029 | −0.061 (0.085) | −0.796 (0.308)* | 0.049 | −0.080, 0.205 |
Multiple-mediator model | 0.018 (0.344) | −0.000 | −0.015, 0.014 | −0.340 (0.336) | 0.021 | −0.038, 0.109 | ||
Pros of exercise | ||||||||
Single-mediator model | 0.099 (0.091) | 0.433 (0.249) | 0.043 | −0.030, 0.155 | −0.061 (0.104) | 0.008 (0.250) | −0.000 | −0.034, 0.033 |
Multiple-mediator model | 0.386 (0.321) | 0.038 | −0.034, 0.155 | −0.200 (0.287) | 0.012 | −0.036, 0.079 | ||
Barriers efficacy | ||||||||
Single-mediator model | −1.443 (1.995) | −0.012 (0.012) | 0.017 | −0.032, 0.091 | 3.974 (2.438) | 0.039 (0.011)** | 0.155 | −0.024, 0.387 |
Multiple-mediator model | −0.015 (0.015) | 0.022 | −0.040, 0.113 | 0.033 (0.014)* | 0.131 | −0.018, 0.359 | ||
Performance efficacy | ||||||||
Single-mediator model | 3.325 (3.055) | −0.000 (0.009) | −0.001 | −0.067, 0.063 | 3.816 (3.341) | 0.018 (0.008)* | 0.069 | −0.041, 0.226 |
Multiple-mediator model | 0.005 (0.010) | 0.017 | −0.049, 0.105 | 0.012 (0.009) | 0.046 | −0.034, 0.176 | ||
Cognitive processes of change | ||||||||
Single-mediator model | 0.036 (0.068) | 0.552 (0.332) | 0.020 | −0.052, 0.112 | 0.051 (0.071) | 0.040 (0.376) | 0.002 | −0.039, 0.046 |
Multiple-mediator model | 0.858 (0.480) | 0.031 | −0.081, 0.172 | −0.284 (0.460) | −0.014 | −0.091, 0.040 | ||
Behavioral processes of change | ||||||||
Single Mediator Model | 0.274 (0.071)** | 0.036 (0.321) | 0.010 | −0.166, 0.189 | 0.248 (0.080)** | 1.046 (0.338)** | 0.259 | 0.066, 0.525a |
Multiple-mediator model | −0.653 (0.482) | −0.179 | −0.483, 0.071 | 0.403 (0.463) | 0.100 | −0.118, 0.362 |
Significant mediator
p<0.05
p<0.01