Research Article

Lifestyle Intervention for Patients with Nonalcoholic Fatty Liver Disease: A Randomized Clinical Trial Based on the Theory of Planned Behavior

Table 3

Mean and standard deviation of TPB constructs for physical activity over three time periods.

ConstructsGroupTime
BaselineTwo weeks after intervention12 weeks after interventionTimeGroup

Attitude toward physical activityControl group ()<0.001<0.001<0.001
Intervention group ()
0.904<0.001<0.001

Subjective norms toward physical activityControl group ()<0.001<0.001<0.001
Intervention group ()
0.390<0.001<0.001

Perceived behavioral control (PBC) toward physical activityControl group ()<0.001<0.001<0.001
Intervention group ()
0.872<0.001<0.001

Intention toward physical activityControl group ()<0.001<0.001<0.001
Intervention group ()
0.881<0.001<0.001

Physical activity behavior (met/cal/week)Control group ()<0.001<0.001<0.001
Intervention group ()
0.249<0.001<0.001

Data are . values represent the interaction (computed by analysis of repeated measures).