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Table 3 Comparison of rehabilitation outcomes between the intervention and control groups on three tracking points (n = 150)

From: Effectiveness of self-efficacy-enhancing interventions on rehabilitation following total hip replacement: a randomized controlled trial with six-month follow-up

Variable Time Intervention group Control group The independent sample t-test The repeated measurement analysis of variance
     t P   F P
Self-efficacy of rehabilitation T1 76.80 ± 4.40 62.22 ± 5.55  − 13.288  < 0.001* aGroup × Time 33.473  < 0.001*
  T3 83.08 ± 7.22 72.17 ± 7.22  − 8.140  < 0.001*    
  T6 86.83 ± 5.89 72.16 ± 6.52  − 10.820  < 0.001*    
Hip function T1 64.26 ± 7.73 50.67 ± 6.20  − 8.981  < 0.001* aGroup × Time 36.790  < 0.001*
  T3 85.77 ± 5.61 71.11 ± 7.46  − 3.112 0.010*    
  T6 90.52 ± 4.03 78.47 ± 7.57  − 8.998  < 0.001*    
Activity and participation T1 85.57 ± 6.94 104.17 ± 9.28 10.353  < 0.001* aGroup × Time 27.800  < 0.001*
  T3 66.86 ± 9.95 75.74 ± 8.63 4.406  < 0.001*    
  T6 51.03 ± 5.69 60.74 ± 8.28 6.220  < 0.001*    
Anxiety and depression T1 9.08 ± 3.59 13.73 ± 3.46 6.054  < 0.001* aGroup × Time 10.435  < 0.001*
  T3 7.21 ± 3.65 11.36 ± 3.42 5.410 0.010*    
  T6 7.05 ± 1.61 9.50 ± 3.81 3.781  < 0.001*    
Quality of life T1 28.97 ± 1.67 28.20 ± 1.91  − 1.374 0.187 aGroup × Time 5.540 0.021*
  T3 38.43 ± 2.99 36.38 ± 2.30  − 3.515 0.001*    
  T6 42.96 ± 2.65 38.46 ± 3.12  − 8.333  < 0.001*    
Functional exercise compliance T1 66.40 ± 4.49 56.72 ± 3.31 NA NA aGroup × Time 2.751 0.073
  T3 53.60 ± 3.85 45.27 ± 3.70      
  T6 45.98 ± 4.01 38.69 ± 3.25    bGroup 209.855  < 0.001*
  1. T1 (one month), T3 (three months), T6 (six months)
  2. NA not applicable
  3. *Statistically significant with P value < 0.05
  4. aGroup × Time, interaction effect between intervention and time
  5. bGroup, main effect for intervention