Table 2 A comparison the mean score (as percentage) for attitude, subjective norms, perceived control behavior, intention and behavior in the experimental and control groups before and after the intervention.

From: The effect of an educational intervention based on the theory of planned behavior on the prevention of knee osteoarthritis in women

Variables

Group

Before Intervention

M ± SD

After Intervention

M ± SD

P-Value

Attitude

Experimental

38.21 ± 4.21

61.32 ± 4.81

P < 0.001

Control

36.54 ± 4.49

37.26 ± 4.51

P = 0.54

P-Value

0.54

P < 0.001

 

Subjective norms

Experimental

33.21 ± 4.20

62.14 ± 4.81

P < 0.001

Control

34.30 ± 4.12

35.26 ± 4.10

P = 0.64

P-Value

0.78

P < 0.001

 

Perceived control behavior

Experimental

29.22 ± 4.36

58.23 ± 4.31

P < 0.001

Control

28.66 ± 4.50

28.93 ± 4.67

P = 0.28

P-Value

0.53

P < 0.001

 

Intention

Experimental

34.21 ± 4.61

63.42 ± 3.94

P < 0.001

Control

33.78 ± 5.21

34.44 ± 4.84

P = 0.36

P-Value

0.81

P < 0.001

 

Behavior

Experimental

27.32 ± 4.15

57.30 ± 4.12

P < 0.001

Control

28.14 ± 3.90

29.40 ± 4.02

P = 0.56

P-Value

0.65

P < 0.001

 
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