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Table 6 Estimated differencesa in mean change at 6, 12 and 18 months

From: Effectiveness of a self-management training for patients with chronic and treatment resistant anxiety or depressive disorders on quality of life, symptoms, and empowerment: results of a randomized controlled trial

Outcome

 

Estimate of mean difference (95% CI)

t (df)

P

Quality of life (WHOQOL-BREFb)

 Total score

6 months (T1)

0.69 (− 2.56 to 3.93)

0.42 (354)

0.678

12 months (T2)

3.88 (0.49 to 7.27)

2.25 (356)

0.025*

18 months (T3)

1.89 (− 1.53 to 5.31)

1.09 (356)

0.279

 Domain 1;

6 months (T1)

0.41 (− 0.94 to 1.76)

0.60 (357)

0.549

 Physical health

12 months (T2)

1.82 (0.42 to 3.23)

2.55 (361)

0.011*

18 months (T3)

0.68 (− 0.74 to 2.10)

0.95 (361)

0.345

 Domain 2;

6 months (T1)

0.48 (− 0.43 to 1.40)

1.04 (354)

0.300

 Psychological

12 months (T2)

0.87 (− 0.08 to 1.83)

1.79 (357)

0.074

18 months (T3)

0.82 (− 0.15 to 1.78)

1.66 (357)

0.098

 Domain 3;

6 months (T1)

0.17 (− 0.46 to 0.79)

0.52 (353)

0.603

Social relationships

12 months (T2)

0.72 (0.07 to 1.37)

2.18 (356)

0.030*

18 months (T3)

0.44 (− 0.21 to 1.10)

1.33 (356)

0.186

 Domain 4;

6 months (T1)

−0.37 (− 1.61 to 0.87)

−0.59 (355)

0.556

 Environment

12 months (T2)

−0.01 (− 1.30 to 1.29)

−0.01 (357)

0.993

18 months (T3)

−0.01 (− 1.32 to 1.30)

−0.02 (357)

0.986

Anxiety (BAIc)

 Total score

6 months (T1)

0.88 (− 2.37 to 4.12)

0.53 (352)

0.595

12 months (T2)

−1.31 (− 4.72 to 2.10)

−0.76 (355)

0.451

18 months (T3)

−0.27 (− 3.70 to 3.16)

−0.16 (355)

0.875

Depression (PHQ-9d)

 Total score

6 months (T1)

0.09 (− 1.74 to 1.92)

0.10 (354)

0.921

12 months (T2)

0.09 (−1.82 to 2.01)

0.10 (358)

0.923

18 months (T3)

1.14 (− 0.79 to 3.08)

1.16 (358)

0.247

Empowerment (NELe)

 Total score

6 months (T1)

5.41 (0.42 to 10.40)

2.13 (353)

0.034*

12 months (T2)

6.39 (1.19 to 11.59)

2.42 (355)

0.016*

18 months (T3)

0.00 (− 5.24 to 5.25)

0.00 (355)

0.999

 Dimension 1;

6 months (T1)

1.26 (− 0.55 to 3.08)

1.37 (354)

0.172

 Professional help

12 months (T2)

0.52 (−1.37 to 2.40)

0.54 (360)

0.590

18 months (T3)

−2.45 (− 4.35 to − 0.55)

−2.53 (361)

0.012*

 Dimension 2;

6 months (T1)

0.78 (− 0.54 to 2.09)

1.16 (353)

0.245

 Social support

12 months (T2)

1.07 (− 0.30 to 2.43)

1.54 (356)

0.125

18 months (T3)

1.27 (− 0.11 to 2.65)

1.82 (356)

0.070

 Dimension 3;

6 months (T1)

1.88 (− 0.12 to 3.88)

1.84 (354)

0.066

 Confidence and purpose

12 months (T2)

2.08 (− 0.01 to 4.16)

1.96 (356)

0.051

18 months (T3)

0.80 (−1.30 to 2.91)

0.75 (356)

0.452

 Dimension 4;

6 months (T1)

1.19 (0.08 to 2.31)

2.11 (355)

0.036*

 Connectedness

12 months (T2)

0.71 (− 0.44 to 1.87)

1.21 (358)

0.226

18 months (T3)

−0.11 (− 1.28 to 1.06)

−0.18 (358)

0.857

 Dimension 5;

6 months (T1)

0.07 (− 0.85 to 1.00)

0.15 (354)

0.878

 Self-management

12 months (T2)

0.98 (0.02 to 1.95)

2.01 (357)

0.045*

18 months (T3)

0.48 (−0.49 to 1.48)

0.97 (358)

0.332

 Dimension 6;

6 months (T1)

0.30 (− 0.83 to 1.42)

0.52 (355)

0.604

 Caring community

12 months (T2)

1.19 (0.02 to 2.36)

2.00 (358)

0.046*

18 months (T3)

0.15 (− 1.03 to 1.33)

0.25 (359)

0.802

  1. *Significant difference
  2. aAll estimates are adjusted for ‘partner status’ and ‘duration of current symptoms’
  3. bWHOQOL-BREF World Health Organisation Quality of Life, Brief version
  4. cBAI Beck Anxiety Inventory
  5. dPHQ-9 Patient Health Questionnaire
  6. eNEL Netherlands Empowerment List