Table 6.
Mediator | Longitudinal mediation: Δ in mediators from baseline to 6 months predicting Δ in PA from 6 to 24 months |
Contemporaneous mediation: Δ in mediators from baseline to 24 months predicting Δ in PA 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) | 0.012 (0.010) | −0.000 | −0.002, 0.002 | −0.061 (0.085) | −0.018 (0.009) | 0.001 | −0.002, 0.005 |
Multiple-mediator model | 0.019 (0.011) | −0.000 | −0.004, 0.003 | −0.005 (0.011) | 0.000 | −0.001, 0.002 | ||
Pros of exercise | ||||||||
Single-mediator model | 0.099 (0.091) | 0.003 (0.009) | 0.000 | −0.002, 0.003 | −0.061 (0.104) | 0.012 (0.008) | −0.001 | −0.004, 0.002 |
Multiple-mediator model | −0.001 (0.011) | −0.000 | −0.003, 0.002 | 0.005 (0.010) | −0.000 | −0.002, 0.001 | ||
Barriers efficacy | ||||||||
Single-mediator model | −1.443 (1.995) | 0.000 (0.000) | −0.001 | −0.003, 0.001 | 3.974 (2.438) | 0.002 (0.000) | 0.008 | −0.001, 0.018 |
Multiple-mediator model | 0.001 (0.001) | −0.001 | −0.008, 0.003 | 0.001 (0.000) | 0.004 | −0.001, 0.011 | ||
Performance efficacy | ||||||||
Single-mediator model | 3.325 (3.055) | −0.000 (0.000) | −0.000 | −0.002, 0.002 | 3.816 (3.341) | 0.001 (0.000)** | 0.004 | −0.003, 0.011 |
Multiple-mediator model | −0.000 (0.000) | −0.000 | −0.003, 0.002 | 0.001 (0.000)* | 0.004 | −0.002, 0.003 | ||
Cognitive processes of change | ||||||||
Single-mediator model | 0.036 (0.068) | 0.007 (0.012) | 0.000 | −0.001, 0.002 | 0.051 (0.071) | 0.027 (0.011)* | 0.001 | −0.002, 0.006 |
Multiple-mediator model | 0.006 (0.015) | 0.000 | −0.001, 0.002 | 0.031 (0.015)* | 0.002 | −0.003, 0.007 | ||
Behavioral processes of change | ||||||||
Single-mediator model | 0.274 (0.071)** | 0.007 (0.011) | 0.002 | −0.004, 0.008 | 0.248 (0.080)** | 0.038 (0.010)** | 0.009 | 0.003, 0.018a |
Multiple-mediator model | 0.009 (0.016) | 0.002 | −0.006, 0.012 | 0.002 (0.016) | 0.000 | −0.007, 0.009 |
Significant mediator
p<0.05
p<0.01