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Table 4 Per protocol analyses

From: The short-term effect on alliance and satisfaction of using patient feedback scales in mental health out-patient treatment. A randomised controlled trial

Outcomes

Group

Baseline

Between groups at 6 weeks A)

Within groups (6 weeks–baseline) B)

  

Mean (SD)

Mean (SD)

Diff. (95% CI)

 

Diff (95% CI)

p-value

TAS

INT

 

5.01 (0.8)

0.32 (−0.11, 0.75)

0.137

  

CTRL

 

4.69 (0.8)

    

CSQ

INT

 

25.59 (4.0)

1.16 (−0.84, 3.16)

0.248

  

CTRL

 

24.43 (3.6)

    

BASIS-32 †

INT

1.10 (0.5)

1.03 (0.5)

0.04 (−0.22, 0.30)

 

−0.07 (−0.27, 0.14)

0.515

CTRL

1.27 (0.6)

1.09 (0.6)

 

0.766

−0.18 (−0.37, 0.01)

0.069

PAM

INT

35.17 (6.4)

39.43 (7.0)

2.53 (−2.04, 7.10)

0.272

4.26 (1.71, 6.81)*

0.002

CTRL

36.17 (8.8)

37.29 (10.5)

  

1.12 (−3.15, 5.40)

0.596

MCS (SF-12)

INT

37.41 (7.5)

39.94 (7.8)

−0.29 (−4.21, 3.63)

0.883

2.54 (−0.40, 5.48)

0.088

CTRL

37.37 (6.1)

40.21 (8.5)

  

2.84 (−0.23, 5.92)

0.069

PCS (SF-12)

INT

47.46 (8.4)

48.84 (9.9)

1.42 (−2.20, 5.04)

0.434

1.38 (−1.48, 4.24)

0.330

CTRL

48.09 (8.6)

47.90 (9.0)

  

−0.18 (−2.70, 2.34)

0.883

ORS

INT

17.55 (7.0)

22.07 (9.0)

2.68 (−1.74, 7.09)

0.229

4.52 (1.31, 7.73)*

0.008

CTRL

16.16 (7.0)

18.63 (9.2)

  

2.47 (−0.94, 5.89)

0.150

SRS

INT

 

34.68 (5.6)

3.15 (0.07, 6.37)

0.055

  

CTRL

 

31.53 (6.4)

    

PM

INT

5.38 (0.8)

5.65 (0.5)

0.28 (0.04, 0.42)

0.024

0.27 (−0.04, 0.57)

0.081

CTRL

5.32 (0.9)

5.34 (0.7)

  

0.02 (−0.14, 0.19)

0.788

PP

INT

 

4.73 (0.7)

0.07 (−0.29, 0.42)

0.706

  
 

CTRL

 

4.66 (0.6)

    
  1. Comparison of outcomes between the intervention group (INT, n = 26) and control group (CTRL, n = 32) six weeks after treatment start, and within each group from baseline to six weeks.
  2. TAS = Treatment alliance score, CSQ = Client satisfaction questionnaire, BASIS-32 = The behavior and symptom identification scale 32, PAM = Patient activation measure, MCS (SF-12) = Mental Component Score (Short form-12), PCS (SF-12) = Physical Component Score (Short form-12), ORS = Outcome rating scale, SRS = Session rating scale, PM = Patient motivation, PP = Patient participation.
  3. A) The between-group mean differences for TAS, CSQ, SRS and PP have been calculated using two-tailed independent t-tests. The between-group estimated mean differences for BASIS-32, PAM, SF12, ORS, and PM have been calculated using analysis of covariance (ANCOVA), adjusted for baseline values.
  4. B) The within group differences have been calculated using two-tailed paired t-test.
  5. † Decrease in score indicates improvement (less mental health symptoms) for BASIS-32. For the other outcomes, increased score indicates improvement.
  6. * p-value ≤0.05.