Scolaris Content Display Scolaris Content Display

Study flow diagram.
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Figure 1

Study flow diagram.

Risk of bias summary: review authors' judgements about each risk of bias item for each included study.
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Figure 2

Risk of bias summary: review authors' judgements about each risk of bias item for each included study.

Risk of bias graph: review authors' judgements about each risk of bias item presented as percentages across all included studies.
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Figure 3

Risk of bias graph: review authors' judgements about each risk of bias item presented as percentages across all included studies.

Funnel plot of comparison: 1 Exercise versus no treatment controls, outcome: 1.1 Pain intensity, short term.
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Figure 4

Funnel plot of comparison: 1 Exercise versus no treatment controls, outcome: 1.1 Pain intensity, short term.

Comparison 1 Exercise versus no treatment controls, Outcome 1 Pain intensity, short term.
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Analysis 1.1

Comparison 1 Exercise versus no treatment controls, Outcome 1 Pain intensity, short term.

Comparison 1 Exercise versus no treatment controls, Outcome 2 Pain intensity, long term.
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Analysis 1.2

Comparison 1 Exercise versus no treatment controls, Outcome 2 Pain intensity, long term.

Comparison 1 Exercise versus no treatment controls, Outcome 3 Disability, short term.
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Analysis 1.3

Comparison 1 Exercise versus no treatment controls, Outcome 3 Disability, short term.

Comparison 1 Exercise versus no treatment controls, Outcome 4 Disability, short term.
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Analysis 1.4

Comparison 1 Exercise versus no treatment controls, Outcome 4 Disability, short term.

Comparison 1 Exercise versus no treatment controls, Outcome 5 Disability, long term.
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Analysis 1.5

Comparison 1 Exercise versus no treatment controls, Outcome 5 Disability, long term.

Comparison 1 Exercise versus no treatment controls, Outcome 6 Improvement, short term.
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Analysis 1.6

Comparison 1 Exercise versus no treatment controls, Outcome 6 Improvement, short term.

Comparison 1 Exercise versus no treatment controls, Outcome 7 Improvement, short term.
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Analysis 1.7

Comparison 1 Exercise versus no treatment controls, Outcome 7 Improvement, short term.

Comparison 1 Exercise versus no treatment controls, Outcome 8 Sick leave, long term.
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Analysis 1.8

Comparison 1 Exercise versus no treatment controls, Outcome 8 Sick leave, long term.

Comparison 2 Exercise versus active treatment controls, Outcome 1 Pain intensity, short term.
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Analysis 2.1

Comparison 2 Exercise versus active treatment controls, Outcome 1 Pain intensity, short term.

Comparison 2 Exercise versus active treatment controls, Outcome 2 Pain intensity, long term.
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Analysis 2.2

Comparison 2 Exercise versus active treatment controls, Outcome 2 Pain intensity, long term.

Comparison 2 Exercise versus active treatment controls, Outcome 3 Disability, short term.
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Analysis 2.3

Comparison 2 Exercise versus active treatment controls, Outcome 3 Disability, short term.

Comparison 2 Exercise versus active treatment controls, Outcome 4 Disability, long term.
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Analysis 2.4

Comparison 2 Exercise versus active treatment controls, Outcome 4 Disability, long term.

Comparison 2 Exercise versus active treatment controls, Outcome 5 Improvement, short term.
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Analysis 2.5

Comparison 2 Exercise versus active treatment controls, Outcome 5 Improvement, short term.

Comparison 3 Ergonomic intervention versus no treatment controls, Outcome 1 Pain intensity, short term.
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Analysis 3.1

Comparison 3 Ergonomic intervention versus no treatment controls, Outcome 1 Pain intensity, short term.

Comparison 3 Ergonomic intervention versus no treatment controls, Outcome 2 Pain intensity, long term.
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Analysis 3.2

Comparison 3 Ergonomic intervention versus no treatment controls, Outcome 2 Pain intensity, long term.

Comparison 3 Ergonomic intervention versus no treatment controls, Outcome 3 Disability, short term.
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Analysis 3.3

Comparison 3 Ergonomic intervention versus no treatment controls, Outcome 3 Disability, short term.

Comparison 3 Ergonomic intervention versus no treatment controls, Outcome 4 Disability, short term.
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Analysis 3.4

Comparison 3 Ergonomic intervention versus no treatment controls, Outcome 4 Disability, short term.

Comparison 3 Ergonomic intervention versus no treatment controls, Outcome 5 Disability, long term.
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Analysis 3.5

Comparison 3 Ergonomic intervention versus no treatment controls, Outcome 5 Disability, long term.

Comparison 3 Ergonomic intervention versus no treatment controls, Outcome 6 Disability, long term.
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Analysis 3.6

Comparison 3 Ergonomic intervention versus no treatment controls, Outcome 6 Disability, long term.

Comparison 3 Ergonomic intervention versus no treatment controls, Outcome 7 Improvement, short term.
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Analysis 3.7

Comparison 3 Ergonomic intervention versus no treatment controls, Outcome 7 Improvement, short term.

Comparison 3 Ergonomic intervention versus no treatment controls, Outcome 8 Improvement, long term.
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Analysis 3.8

Comparison 3 Ergonomic intervention versus no treatment controls, Outcome 8 Improvement, long term.

Comparison 3 Ergonomic intervention versus no treatment controls, Outcome 9 Sick leave, short term.
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Analysis 3.9

Comparison 3 Ergonomic intervention versus no treatment controls, Outcome 9 Sick leave, short term.

Comparison 4 Ergonomic intervention versus active treatment controls, Outcome 1 Pain intensity, short term.
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Analysis 4.1

Comparison 4 Ergonomic intervention versus active treatment controls, Outcome 1 Pain intensity, short term.

Comparison 4 Ergonomic intervention versus active treatment controls, Outcome 2 Pain intensity, long term.
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Analysis 4.2

Comparison 4 Ergonomic intervention versus active treatment controls, Outcome 2 Pain intensity, long term.

Comparison 5 Behavioural intervention versus no treatment controls, Outcome 1 Pain intensity, short term.
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Analysis 5.1

Comparison 5 Behavioural intervention versus no treatment controls, Outcome 1 Pain intensity, short term.

Comparison 5 Behavioural intervention versus no treatment controls, Outcome 2 Pain, short term.
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Analysis 5.2

Comparison 5 Behavioural intervention versus no treatment controls, Outcome 2 Pain, short term.

Comparison 5 Behavioural intervention versus no treatment controls, Outcome 3 Disability, short term.
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Analysis 5.3

Comparison 5 Behavioural intervention versus no treatment controls, Outcome 3 Disability, short term.

Comparison 5 Behavioural intervention versus no treatment controls, Outcome 4 Disability, short term.
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Analysis 5.4

Comparison 5 Behavioural intervention versus no treatment controls, Outcome 4 Disability, short term.

Comparison 5 Behavioural intervention versus no treatment controls, Outcome 5 Sick leave, short term.
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Analysis 5.5

Comparison 5 Behavioural intervention versus no treatment controls, Outcome 5 Sick leave, short term.

Comparison 5 Behavioural intervention versus no treatment controls, Outcome 6 Sick leave, short term.
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Analysis 5.6

Comparison 5 Behavioural intervention versus no treatment controls, Outcome 6 Sick leave, short term.

Comparison 5 Behavioural intervention versus no treatment controls, Outcome 7 Pain, long term.
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Analysis 5.7

Comparison 5 Behavioural intervention versus no treatment controls, Outcome 7 Pain, long term.

Comparison 5 Behavioural intervention versus no treatment controls, Outcome 8 Disability, long term.
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Analysis 5.8

Comparison 5 Behavioural intervention versus no treatment controls, Outcome 8 Disability, long term.

Comparison 6 Behavioural intervention versus active treatment controls, Outcome 1 Pain intensity, short term.
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Analysis 6.1

Comparison 6 Behavioural intervention versus active treatment controls, Outcome 1 Pain intensity, short term.

Comparison 6 Behavioural intervention versus active treatment controls, Outcome 2 Disability, short term.
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Analysis 6.2

Comparison 6 Behavioural intervention versus active treatment controls, Outcome 2 Disability, short term.

Comparison 6 Behavioural intervention versus active treatment controls, Outcome 3 Work ability, short term.
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Analysis 6.3

Comparison 6 Behavioural intervention versus active treatment controls, Outcome 3 Work ability, short term.

Comparison 6 Behavioural intervention versus active treatment controls, Outcome 4 Pain intensity, long term.
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Analysis 6.4

Comparison 6 Behavioural intervention versus active treatment controls, Outcome 4 Pain intensity, long term.

Comparison 6 Behavioural intervention versus active treatment controls, Outcome 5 Disability, long term.
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Analysis 6.5

Comparison 6 Behavioural intervention versus active treatment controls, Outcome 5 Disability, long term.

Comparison 6 Behavioural intervention versus active treatment controls, Outcome 6 Work ability, long term.
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Analysis 6.6

Comparison 6 Behavioural intervention versus active treatment controls, Outcome 6 Work ability, long term.

Table 1. Criteria for assessing risk of bias in randomised clinical trials

Item

Judgement

1. Was the method of randomisation adequate?

Yes/No/Unsure

2. Was the treatment allocation concealed?

Yes/No/Unsure

Was knowledge of the allocated interventions adequately prevented during the study?

3. Was the participant blinded to the intervention?

4. Was the care provider blinded to the intervention?

5. Was the outcome assessor blinded to the intervention?

Yes/No/Unsure

Yes/No/Unsure

Yes/No/Unsure

Were incomplete outcome data adequately addressed?

6. Was the dropout rate described and acceptable?

7. Were all randomly assigned participants analysed in the group to which they were allocated?

 

Yes/No/Unsure

Yes/No/Unsure 

8. Are reports of the study free of suggestion of selective outcome reporting?

Yes/No/Unsure 

Other sources of potential bias:

9.  Were the groups similar at baseline regarding the most important prognostic indicators?

10. Were co‐interventions avoided or similar?

11. Was compliance acceptable in all groups?

12. Was the timing of the outcome assessment similar in all groups?

 

Yes/No/Unsure

Yes/No/Unsure

Yes/No/Unsure

Yes/No/Unsure

Risk of bias was assessed using the 12 criteria above (Furlan 2009). The criteria for a judgement of 'Yes' are outlined in Appendix 2.

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Table 1. Criteria for assessing risk of bias in randomised clinical trials
Comparison 1. Exercise versus no treatment controls

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Pain intensity, short term Show forest plot

10

Std. Mean Difference (IV, Random, 95% CI)

Subtotals only

1.1 Versus no intervention

5

431

Std. Mean Difference (IV, Random, 95% CI)

‐0.52 [‐1.08, 0.03]

1.2 Versus discussion/counselling

3

235

Std. Mean Difference (IV, Random, 95% CI)

‐0.25 [‐0.87, 0.37]

1.3 Exercises plus additional treatment versus additional only

2

309

Std. Mean Difference (IV, Random, 95% CI)

‐1.02 [‐2.99, 0.95]

2 Pain intensity, long term Show forest plot

4

Std. Mean Difference (IV, Random, 95% CI)

Subtotals only

2.1 Versus no treatment

2

308

Std. Mean Difference (IV, Random, 95% CI)

‐0.31 [‐0.96, 0.33]

2.2 Versus discussion/counselling

2

305

Std. Mean Difference (IV, Random, 95% CI)

‐0.07 [‐0.68, 0.54]

3 Disability, short term Show forest plot

3

Std. Mean Difference (IV, Random, 95% CI)

Subtotals only

3.1 Versus no treatment

2

295

Std. Mean Difference (IV, Random, 95% CI)

‐0.77 [‐2.50, 0.97]

3.2 Versus discussion/counselling

1

85

Std. Mean Difference (IV, Random, 95% CI)

0.51 [0.08, 0.94]

4 Disability, short term Show forest plot

1

Risk Ratio (M‐H, Random, 95% CI)

Totals not selected

4.1 Exercises plus additional treatment versus additional only

1

Risk Ratio (M‐H, Random, 95% CI)

0.0 [0.0, 0.0]

5 Disability, long term Show forest plot

3

Std. Mean Difference (IV, Random, 95% CI)

Subtotals only

5.1 Versus no treatment

2

308

Std. Mean Difference (IV, Random, 95% CI)

0.14 [‐0.08, 0.37]

5.2 Versus discussion/counselling

1

179

Std. Mean Difference (IV, Random, 95% CI)

‐0.55 [‐0.87, ‐0.23]

6 Improvement, short term Show forest plot

1

Risk Ratio (M‐H, Random, 95% CI)

Subtotals only

6.1 Versus discussion/counselling

1

126

Risk Ratio (M‐H, Random, 95% CI)

0.53 [0.37, 0.78]

7 Improvement, short term Show forest plot

2

Risk Ratio (M‐H, Random, 95% CI)

Subtotals only

7.1 Exercises plus additional treatment versus additional only

2

396

Risk Ratio (M‐H, Random, 95% CI)

1.25 [0.81, 1.93]

8 Sick leave, long term Show forest plot

2

Std. Mean Difference (IV, Random, 95% CI)

Subtotals only

8.1 Versus no treatment

2

308

Std. Mean Difference (IV, Random, 95% CI)

‐0.03 [‐0.26, 0.19]

Figuras y tablas -
Comparison 1. Exercise versus no treatment controls
Comparison 2. Exercise versus active treatment controls

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Pain intensity, short term Show forest plot

5

Std. Mean Difference (IV, Random, 95% CI)

Subtotals only

1.1 Specific exercise versus regular exercises

4

208

Std. Mean Difference (IV, Random, 95% CI)

0.45 [0.14, 0.75]

1.2 Exercise versus manual therapy

1

123

Std. Mean Difference (IV, Random, 95% CI)

0.0 [‐0.35, 0.35]

2 Pain intensity, long term Show forest plot

2

Std. Mean Difference (IV, Random, 95% CI)

Subtotals only

2.1 Specific versus regular exercise

2

201

Std. Mean Difference (IV, Random, 95% CI)

0.10 [‐0.18, 0.38]

3 Disability, short term Show forest plot

2

Mean Difference (IV, Random, 95% CI)

Totals not selected

3.1 Specific versus regular exercise

1

Mean Difference (IV, Random, 95% CI)

0.0 [0.0, 0.0]

3.2 Versus manual therapy

1

Mean Difference (IV, Random, 95% CI)

0.0 [0.0, 0.0]

4 Disability, long term Show forest plot

2

201

Std. Mean Difference (IV, Random, 95% CI)

0.11 [‐0.17, 0.38]

4.1 Specific versus regular exercise

2

201

Std. Mean Difference (IV, Random, 95% CI)

0.11 [‐0.17, 0.38]

5 Improvement, short term Show forest plot

5

Risk Ratio (M‐H, Random, 95% CI)

Subtotals only

5.1 Specific versus regular exercise

3

205

Risk Ratio (M‐H, Random, 95% CI)

0.86 [0.43, 1.71]

5.2 Versus massage

1

47

Risk Ratio (M‐H, Random, 95% CI)

0.78 [0.55, 1.11]

5.3 Versus manual therapy

1

125

Risk Ratio (M‐H, Random, 95% CI)

1.88 [1.29, 2.74]

Figuras y tablas -
Comparison 2. Exercise versus active treatment controls
Comparison 3. Ergonomic intervention versus no treatment controls

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Pain intensity, short term Show forest plot

5

Std. Mean Difference (IV, Random, 95% CI)

Subtotals only

1.1 Versus placebo

1

80

Std. Mean Difference (IV, Random, 95% CI)

0.53 [0.01, 1.04]

1.2 Versus no treatment

3

506

Std. Mean Difference (IV, Random, 95% CI)

‐0.07 [‐0.36, 0.22]

1.3 Ergonomic intervention plus additional treatment versus additional only

1

94

Std. Mean Difference (IV, Random, 95% CI)

‐0.60 [‐1.01, ‐0.18]

2 Pain intensity, long term Show forest plot

4

Std. Mean Difference (IV, Random, 95% CI)

Subtotals only

2.1 Versus no treatment

4

402

Std. Mean Difference (IV, Random, 95% CI)

‐0.76 [‐1.35, ‐0.16]

3 Disability, short term Show forest plot

2

Mean Difference (IV, Random, 95% CI)

Subtotals only

3.1 Versus placebo

1

80

Mean Difference (IV, Random, 95% CI)

0.93 [0.28, 1.57]

3.2 Ergonomic intervention plus additional treatment versus additional only

1

94

Mean Difference (IV, Random, 95% CI)

‐9.0 [‐15.02, ‐2.98]

4 Disability, short term Show forest plot

1

Risk Ratio (M‐H, Random, 95% CI)

Totals not selected

4.1 Versus no treatment

1

Risk Ratio (M‐H, Random, 95% CI)

0.0 [0.0, 0.0]

5 Disability, long term Show forest plot

2

107

Std. Mean Difference (IV, Random, 95% CI)

‐0.33 [‐0.71, 0.06]

5.1 Versus no treatment

2

107

Std. Mean Difference (IV, Random, 95% CI)

‐0.33 [‐0.71, 0.06]

6 Disability, long term Show forest plot

1

Risk Ratio (M‐H, Random, 95% CI)

Totals not selected

6.1 Versus no treatment

1

Risk Ratio (M‐H, Random, 95% CI)

0.0 [0.0, 0.0]

7 Improvement, short term Show forest plot

2

Risk Ratio (M‐H, Random, 95% CI)

Subtotals only

7.1 Versus placebo

1

80

Risk Ratio (M‐H, Random, 95% CI)

1.89 [0.85, 4.21]

7.2 Versus no treatment

1

310

Risk Ratio (M‐H, Random, 95% CI)

0.88 [0.78, 0.99]

8 Improvement, long term Show forest plot

1

Risk Ratio (M‐H, Random, 95% CI)

Totals not selected

8.1 Versus no treatment

1

Risk Ratio (M‐H, Random, 95% CI)

0.0 [0.0, 0.0]

9 Sick leave, short term Show forest plot

2

Risk Ratio (M‐H, Random, 95% CI)

Subtotals only

9.1 Versus no treatment

2

330

Risk Ratio (M‐H, Random, 95% CI)

0.49 [0.32, 0.76]

Figuras y tablas -
Comparison 3. Ergonomic intervention versus no treatment controls
Comparison 4. Ergonomic intervention versus active treatment controls

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Pain intensity, short term Show forest plot

3

Std. Mean Difference (IV, Random, 95% CI)

Subtotals only

1.1 Versus ergonomic intervention

3

134

Std. Mean Difference (IV, Random, 95% CI)

0.11 [‐0.24, 0.46]

2 Pain intensity, long term Show forest plot

2

Std. Mean Difference (IV, Random, 95% CI)

Subtotals only

2.1 Versus ergonomic interventions

2

89

Std. Mean Difference (IV, Random, 95% CI)

‐0.02 [‐1.22, 1.18]

Figuras y tablas -
Comparison 4. Ergonomic intervention versus active treatment controls
Comparison 5. Behavioural intervention versus no treatment controls

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Pain intensity, short term Show forest plot

7

Std. Mean Difference (IV, Random, 95% CI)

Subtotals only

1.1 Versus no treatment

4

374

Std. Mean Difference (IV, Random, 95% CI)

‐0.67 [‐1.49, 0.16]

1.2 Versus waiting list controls

3

121

Std. Mean Difference (IV, Random, 95% CI)

‐0.74 [‐1.32, ‐0.15]

2 Pain, short term Show forest plot

2

Risk Ratio (M‐H, Random, 95% CI)

Totals not selected

2.1 Versus no treatment

1

Risk Ratio (M‐H, Random, 95% CI)

0.0 [0.0, 0.0]

2.2 Behavioural intervention plus additional treatment versus additional only

1

Risk Ratio (M‐H, Random, 95% CI)

0.0 [0.0, 0.0]

3 Disability, short term Show forest plot

4

Std. Mean Difference (IV, Random, 95% CI)

Totals not selected

3.1 Versus no treatment

2

Std. Mean Difference (IV, Random, 95% CI)

0.0 [0.0, 0.0]

3.2 Versus waiting list controls

2

Std. Mean Difference (IV, Random, 95% CI)

0.0 [0.0, 0.0]

4 Disability, short term Show forest plot

2

Risk Ratio (M‐H, Random, 95% CI)

Totals not selected

4.1 Versus no treatment

1

Risk Ratio (M‐H, Random, 95% CI)

0.0 [0.0, 0.0]

4.2 Behavioural intervention plus additional treatment versus additional only

1

Risk Ratio (M‐H, Random, 95% CI)

0.0 [0.0, 0.0]

5 Sick leave, short term Show forest plot

2

Std. Mean Difference (IV, Random, 95% CI)

Subtotals only

5.1 Versus no treatment

2

298

Std. Mean Difference (IV, Random, 95% CI)

0.02 [‐0.21, 0.24]

6 Sick leave, short term Show forest plot

1

Risk Ratio (M‐H, Random, 95% CI)

Totals not selected

6.1 Versus no treatment

1

Risk Ratio (M‐H, Random, 95% CI)

0.0 [0.0, 0.0]

7 Pain, long term Show forest plot

1

Std. Mean Difference (IV, Random, 95% CI)

Totals not selected

7.1 Versus no treatment

1

Std. Mean Difference (IV, Random, 95% CI)

0.0 [0.0, 0.0]

8 Disability, long term Show forest plot

1

Mean Difference (IV, Random, 95% CI)

Totals not selected

8.1 Versus no treatment

1

Mean Difference (IV, Random, 95% CI)

0.0 [0.0, 0.0]

Figuras y tablas -
Comparison 5. Behavioural intervention versus no treatment controls
Comparison 6. Behavioural intervention versus active treatment controls

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Pain intensity, short term Show forest plot

5

396

Std. Mean Difference (IV, Random, 95% CI)

‐0.06 [‐0.25, 0.14]

1.1 Versus behavioural interventions

2

63

Std. Mean Difference (IV, Random, 95% CI)

‐0.23 [‐0.73, 0.27]

1.2 Versus exercises

3

333

Std. Mean Difference (IV, Random, 95% CI)

‐0.02 [‐0.24, 0.19]

2 Disability, short term Show forest plot

2

Std. Mean Difference (IV, Random, 95% CI)

Subtotals only

2.1 Versus exercises

2

293

Std. Mean Difference (IV, Random, 95% CI)

‐0.57 [‐1.66, 0.52]

3 Work ability, short term Show forest plot

2

Std. Mean Difference (IV, Random, 95% CI)

Subtotals only

3.1 Versus exercises

2

303

Std. Mean Difference (IV, Random, 95% CI)

‐0.15 [‐0.84, 0.54]

4 Pain intensity, long term Show forest plot

1

Std. Mean Difference (IV, Random, 95% CI)

Totals not selected

4.1 Versus exercises

1

Std. Mean Difference (IV, Random, 95% CI)

0.0 [0.0, 0.0]

5 Disability, long term Show forest plot

1

Mean Difference (IV, Random, 95% CI)

Totals not selected

5.1 Versus exercises

1

Mean Difference (IV, Random, 95% CI)

0.0 [0.0, 0.0]

6 Work ability, long term Show forest plot

1

Mean Difference (IV, Random, 95% CI)

Totals not selected

6.1 Versus exercises

1

Mean Difference (IV, Random, 95% CI)

0.0 [0.0, 0.0]

Figuras y tablas -
Comparison 6. Behavioural intervention versus active treatment controls