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Table 3 Secondary outcome measures over time in the control and intervention groups

From: The effect of transtheoretical model-lead intervention for knee osteoarthritis in older adults: a cluster randomized trial

 

Intervention (n = 103)

Control (n = 86)

  
 

Mean (SD)

Mean (SD)

t†

p

Pain intensity#

 Baseline

24.37 ± 20.31

24.42 ± 19.65

− 0.017

0.986

 Week 24

16.18 ± 15.94

23.47 ± 17.11

− 2.793

0.006#

 Week 48

13.62 ± 11.28

19.64 ± 16.83

− 2.550

0.012#

F‡

7.072

2.085

  

p

0.001*

0.131

  

Joint stiffness#

 Baseline

24.03 ± 24.73

25.00 ± 25.37

− 0.266

0.791

 Week 24

10.53 ± 12.49

19.62 ± 19.88

− 3.376

0.001#

 Week 48

9.77 ± 14.19

17.57 ± 21.36

− 2.611

0.010#

F‡

13.374

0.945

  

p

< 0.001*

0.394

  

Lower limb muscle strength

 Baseline

12.03 ± 5.09

12.27 ± 4.29

− 0.350

0.727

 Week 24

9.61 ± 2.43

11.34 ± 3.66

− 3.583

< 0.001#

 Week 48

10.29 ± 3.70

11.06 ± 2.79

− 1.442

0.151

F‡

19.441

3.565

  

p

< 0.001*

0.034*

  

Balance

 Baseline

2.95 ± 0.29

2.03 ± 0.22

− 0.775

0.439

 Week 24

1.26 ± 0.13

1.60 ± 0.19

− 4.747

< 0.001#

 Week 48

1.11 ± 0.12

1.22 ± 0.15

− 2.576

0.011#

F‡

13.847

6.687

  

p

< 0.001*

0.002*

  
  1. SD standard deviation
  2. †Independent t test was used
  3. ‡One-way repeated measurement ANOVA was used
  4. *p < 0.05 was considered statistically significant
  5. #The score range for pain intensity and joint stiffness is 0–100; p < α’ = 0.05/3 ≈ 0.017 was considered statistically significant
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Arthritis Research & Therapy

ISSN: 1478-6362

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