Table 2.
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 | −0.034 (0.061) | −0.007 (0.012) | 0.000 | −0.001, 0.002 | −0.014 (0.065) | −0.006 (0.011) | 0.000 | −0.001, 0.001 |
Multiple-mediator model | 0.007 (0.014) | −0.000 | −0.002, 0.001 | 0.012 (0.012) | −0.000 | −0.002, 0.001 | ||
Pros of exercise | ||||||||
Single-mediator model | 0.125 (0.073) | −0.018 (0.010) | −0.002 | −0.007, 0.000 | 0.246 (0.076)** | 0.014 (0.009) | 0.003 | −0.001, 0.009 |
Multiple-mediator model | −0.032 (0.012)** | −0.004 | −0.010, 0.000 | 0.005 (0.011) | 0.001 | −0.004, 0.007 | ||
Barriers efficacy | ||||||||
Single-mediator model | −0.112 (1.592) | 0.001 (0.0004) | −0.000 | −0.003, 0.003 | 0.136 (1.781) | 0.002 (0.000)** | 0.000 | −0.007, 0.007 |
Multiple-mediator model | 0.001 (0.001) | −0.000 | −0.004, 0.003 | 0.002 (0.000)** | 0.000 | −0.007, 0.007 | ||
Performance efficacy | ||||||||
Single-mediator model | 2.851 (2.207) | 0.000 (0.000) | 0.000 | −0.001, 0.002 | 3.733 (2.216) | 0.000 (0.000) | 0.011 | −0.001, 0.004 |
Multiple-mediator model | −0.000 (0.000) | −0.001 | −0.002, 0.002 | −0.000 (0.000) | −0.001 | −0.004, 0.002 | ||
Cognitive processes of change | ||||||||
Single-mediator model | 0.027 (0.052) | 0.027 (0.014)* | 0.001 | −0.002, 0.004 | 0.120 (0.059)* | 0.023 (0.012) | 0.003 | −0.000, 0.007 |
Multiple-mediator model | 0.050 (0.018)** | 0.001 | −0.004, 0.007 | −0.009 (0.016) | −0.001 | −0.006, 0.003 | ||
Behavioral processes of change | ||||||||
Single-mediator model | 0.148 (0.057)** | 0.002 (0.013) | 0.000 | −0.004, 0.004 | 0.196 (0.063)** | 0.035 (0.011)** | 0.007 | 0.002, 0.014a |
Multiple-mediator model | −0.006 (0.017) | −0.001 | −0.006, 0.004 | 0.030 (0.015) | 0.006 | 0.000, 0.014a |
Significant mediator
p<0.05
p<0.01