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Summary of risks of bias
Figuras y tablas -
Figure 1

Summary of risks of bias

Forest plot of comparison: Intense PCP versus care as usual for workers with subacute back pain, outcome: Time to return‐to‐work at very long‐term follow‐up.
Figuras y tablas -
Figure 2

Forest plot of comparison: Intense PCP versus care as usual for workers with subacute back pain, outcome: Time to return‐to‐work at very long‐term follow‐up.

Forest plot of comparison: Intense PCP versus care as usual for workers with chronic back pain, outcome: Time to return‐to‐work at long‐term follow‐up
Figuras y tablas -
Figure 3

Forest plot of comparison: Intense PCP versus care as usual for workers with chronic back pain, outcome: Time to return‐to‐work at long‐term follow‐up

Forest plot of comparison: Intense PCP versus care as usual for workers with chronic back pain, outcome: Time to return‐to‐work at very long‐term follow‐up.
Figuras y tablas -
Figure 4

Forest plot of comparison: Intense PCP versus care as usual for workers with chronic back pain, outcome: Time to return‐to‐work at very long‐term follow‐up.

Forest plot of comparison: Intense PCP versus exercise program for workers with chronic back pain, outcome: Time to return‐to‐work at intermediate‐term follow‐up.
Figuras y tablas -
Figure 5

Forest plot of comparison: Intense PCP versus exercise program for workers with chronic back pain, outcome: Time to return‐to‐work at intermediate‐term follow‐up.

Forest plot of comparison: Intense PCP versus intense PCP with CBT for workers with chronic back pain, outcome: Proportion of workers off work at intermediate‐term follow‐up.
Figuras y tablas -
Figure 6

Forest plot of comparison: Intense PCP versus intense PCP with CBT for workers with chronic back pain, outcome: Proportion of workers off work at intermediate‐term follow‐up.

Forest plot of comparison: Intense PCP versus intense PCP with CBT for workers with chronic back pain, outcome: Time to return‐to‐work at long‐term follow‐up.
Figuras y tablas -
Figure 7

Forest plot of comparison: Intense PCP versus intense PCP with CBT for workers with chronic back pain, outcome: Time to return‐to‐work at long‐term follow‐up.

Comparison 1 Light PCP vs care as usual for workers with acute back pain, Outcome 1 Proportion off work short term follow up.
Figuras y tablas -
Analysis 1.1

Comparison 1 Light PCP vs care as usual for workers with acute back pain, Outcome 1 Proportion off work short term follow up.

Comparison 1 Light PCP vs care as usual for workers with acute back pain, Outcome 2 Time to return to work long term follow up.
Figuras y tablas -
Analysis 1.2

Comparison 1 Light PCP vs care as usual for workers with acute back pain, Outcome 2 Time to return to work long term follow up.

Comparison 2 Light PCP vs care as usual for workers with sub acute back pain, Outcome 1 Time to return to work intermediate term follow up.
Figuras y tablas -
Analysis 2.1

Comparison 2 Light PCP vs care as usual for workers with sub acute back pain, Outcome 1 Time to return to work intermediate term follow up.

Comparison 2 Light PCP vs care as usual for workers with sub acute back pain, Outcome 2 time to return to work long term follow up.
Figuras y tablas -
Analysis 2.2

Comparison 2 Light PCP vs care as usual for workers with sub acute back pain, Outcome 2 time to return to work long term follow up.

Comparison 2 Light PCP vs care as usual for workers with sub acute back pain, Outcome 3 Time to return to work very long term follow up.
Figuras y tablas -
Analysis 2.3

Comparison 2 Light PCP vs care as usual for workers with sub acute back pain, Outcome 3 Time to return to work very long term follow up.

Comparison 3 Light PCP vs care as usual for workers with chronic back pain, Outcome 1 Time to return to work long term follow up.
Figuras y tablas -
Analysis 3.1

Comparison 3 Light PCP vs care as usual for workers with chronic back pain, Outcome 1 Time to return to work long term follow up.

Comparison 3 Light PCP vs care as usual for workers with chronic back pain, Outcome 2 Time to return to work very long term follow up.
Figuras y tablas -
Analysis 3.2

Comparison 3 Light PCP vs care as usual for workers with chronic back pain, Outcome 2 Time to return to work very long term follow up.

Comparison 4 Intense PCP vs care as usual for workers with acute back pain, Outcome 1 Proportion off work long term follow up.
Figuras y tablas -
Analysis 4.1

Comparison 4 Intense PCP vs care as usual for workers with acute back pain, Outcome 1 Proportion off work long term follow up.

Comparison 5 Intense PCP vs care as usual for workers with sub acute back pain, Outcome 1 Time to return to work short term follow up.
Figuras y tablas -
Analysis 5.1

Comparison 5 Intense PCP vs care as usual for workers with sub acute back pain, Outcome 1 Time to return to work short term follow up.

Comparison 5 Intense PCP vs care as usual for workers with sub acute back pain, Outcome 2 Time to return to work intermediate follow up.
Figuras y tablas -
Analysis 5.2

Comparison 5 Intense PCP vs care as usual for workers with sub acute back pain, Outcome 2 Time to return to work intermediate follow up.

Comparison 5 Intense PCP vs care as usual for workers with sub acute back pain, Outcome 3 Time to return to work long term follow up.
Figuras y tablas -
Analysis 5.3

Comparison 5 Intense PCP vs care as usual for workers with sub acute back pain, Outcome 3 Time to return to work long term follow up.

Comparison 5 Intense PCP vs care as usual for workers with sub acute back pain, Outcome 4 Time to return to work very long term follow up.
Figuras y tablas -
Analysis 5.4

Comparison 5 Intense PCP vs care as usual for workers with sub acute back pain, Outcome 4 Time to return to work very long term follow up.

Comparison 6 Intense PCP vs care as usual for workers with chronic back pain, Outcome 1 Proportion off work short term follow up.
Figuras y tablas -
Analysis 6.1

Comparison 6 Intense PCP vs care as usual for workers with chronic back pain, Outcome 1 Proportion off work short term follow up.

Comparison 6 Intense PCP vs care as usual for workers with chronic back pain, Outcome 2 Time to return to work long term follow up.
Figuras y tablas -
Analysis 6.2

Comparison 6 Intense PCP vs care as usual for workers with chronic back pain, Outcome 2 Time to return to work long term follow up.

Comparison 6 Intense PCP vs care as usual for workers with chronic back pain, Outcome 3 Time to return to work very long term follow up.
Figuras y tablas -
Analysis 6.3

Comparison 6 Intense PCP vs care as usual for workers with chronic back pain, Outcome 3 Time to return to work very long term follow up.

Comparison 7 Intense PCP vs exercise program for workers with chronic back pain, Outcome 1 Proportion off work short term follow up.
Figuras y tablas -
Analysis 7.1

Comparison 7 Intense PCP vs exercise program for workers with chronic back pain, Outcome 1 Proportion off work short term follow up.

Comparison 7 Intense PCP vs exercise program for workers with chronic back pain, Outcome 2 Time to return to work intermediate term follow up.
Figuras y tablas -
Analysis 7.2

Comparison 7 Intense PCP vs exercise program for workers with chronic back pain, Outcome 2 Time to return to work intermediate term follow up.

Comparison 7 Intense PCP vs exercise program for workers with chronic back pain, Outcome 3 Time to return to work long term follow up.
Figuras y tablas -
Analysis 7.3

Comparison 7 Intense PCP vs exercise program for workers with chronic back pain, Outcome 3 Time to return to work long term follow up.

Comparison 7 Intense PCP vs exercise program for workers with chronic back pain, Outcome 4 Time to return to work very long term follow up.
Figuras y tablas -
Analysis 7.4

Comparison 7 Intense PCP vs exercise program for workers with chronic back pain, Outcome 4 Time to return to work very long term follow up.

Comparison 8 Light PCP vs intense PCP for workers with sub acute back pain, Outcome 1 Time to return to work intermediate term follow up.
Figuras y tablas -
Analysis 8.1

Comparison 8 Light PCP vs intense PCP for workers with sub acute back pain, Outcome 1 Time to return to work intermediate term follow up.

Comparison 9 Light PCP vs intense PCP for workers with chronic back pain, Outcome 1 TIme to return to work long term follow up.
Figuras y tablas -
Analysis 9.1

Comparison 9 Light PCP vs intense PCP for workers with chronic back pain, Outcome 1 TIme to return to work long term follow up.

Comparison 9 Light PCP vs intense PCP for workers with chronic back pain, Outcome 2 TIme to return to work very long term follow up.
Figuras y tablas -
Analysis 9.2

Comparison 9 Light PCP vs intense PCP for workers with chronic back pain, Outcome 2 TIme to return to work very long term follow up.

Comparison 10 Intense PCP vs intense PCP with CBT for workers with chronic back pain, Outcome 1 Proportion off work intermediate follow up.
Figuras y tablas -
Analysis 10.1

Comparison 10 Intense PCP vs intense PCP with CBT for workers with chronic back pain, Outcome 1 Proportion off work intermediate follow up.

Comparison 10 Intense PCP vs intense PCP with CBT for workers with chronic back pain, Outcome 2 Time to return to work long term follow up.
Figuras y tablas -
Analysis 10.2

Comparison 10 Intense PCP vs intense PCP with CBT for workers with chronic back pain, Outcome 2 Time to return to work long term follow up.

Comparison 10 Intense PCP vs intense PCP with CBT for workers with chronic back pain, Outcome 3 Time tor return to work very long term follow up.
Figuras y tablas -
Analysis 10.3

Comparison 10 Intense PCP vs intense PCP with CBT for workers with chronic back pain, Outcome 3 Time tor return to work very long term follow up.

Comparison 11 Intense PCP vs CBT for workers with chronic back pain, Outcome 1 Time to return to work long term follow up.
Figuras y tablas -
Analysis 11.1

Comparison 11 Intense PCP vs CBT for workers with chronic back pain, Outcome 1 Time to return to work long term follow up.

Comparison 11 Intense PCP vs CBT for workers with chronic back pain, Outcome 2 Time to return to work very long term follow up.
Figuras y tablas -
Analysis 11.2

Comparison 11 Intense PCP vs CBT for workers with chronic back pain, Outcome 2 Time to return to work very long term follow up.

Comparison 12 Intense PCP vs cognitive intervention for workers with sub acute back pain, Outcome 1 Time to return to work short term follow up.
Figuras y tablas -
Analysis 12.1

Comparison 12 Intense PCP vs cognitive intervention for workers with sub acute back pain, Outcome 1 Time to return to work short term follow up.

Comparison 13 Intense PCP vs pain‐centred treatment for workers with sub acute back pain, Outcome 1 Proportion off work short term follow up.
Figuras y tablas -
Analysis 13.1

Comparison 13 Intense PCP vs pain‐centred treatment for workers with sub acute back pain, Outcome 1 Proportion off work short term follow up.

Comparison 13 Intense PCP vs pain‐centred treatment for workers with sub acute back pain, Outcome 2 Proportion off work long term follow up.
Figuras y tablas -
Analysis 13.2

Comparison 13 Intense PCP vs pain‐centred treatment for workers with sub acute back pain, Outcome 2 Proportion off work long term follow up.

Table 1. Contents of light PCP

Faas 1995

Heymans 2006

Karjalainen 2003

Skouen 2002

Wright 2005

Time span of training

5 wks

4 wks

na

na

2 wks

Number of sessions

2 per week

1 per week

2

approx. 4 hrs at the start +

6 follow op or individual

sessions over a period of 1 year

1 examination + treatment initially then 3 per week

Length of sessions

20 min

120 min

1‐1,5 hr

unclear

1 hr

Full time

no

no

no

no

no

group or individual

individual

group

individual

both

both

exercises

yes

yes

yes

yes, advice and program

yes

work related exercises

yes

yes

yes

yes in advice

yes

operant conditioning behavioural approach

no

no

no, although intervention was based on graded activity program

no

no

pain coping/ management

no

no

no

no

no

back pain education

no

yes

no

no

no

ergonomic advice or occupational training

no

yes

no

no

advice on how to modify physical activities specific to the individual's work situation

return‐to‐work advice

no

yes

no

no

no

workplace visit

no

no

yes

no (not for all individuals)

no

therapists involved

physiotherapist

physiotherapist, occupational physician

physiotherapist, physician

physio therapist, nurse,

psychologist

physiotherapist

other aspects

written compliance contract

no

no

no

no

comparison

CAU

CAU/ intense PCP

CAU

CAU / intense PCP

CAU being a back book and advice on how to modify physical activities specific to the individual's work situation

Figuras y tablas -
Table 1. Contents of light PCP
Table 2. Contents of intense PCP

Altmaier 1992

Bendix 1996

Bendix 1997

Bendix 2000

Corey 1996

Gatchell 2003

Heymans 2006

Time span of training

3 wks

3 wks

6 wks

3 wks

33 days

3 wks

8 wks

Number of sessions

2 per day

39 hrs per week + 3x6 hrs follow up

135 hr in total

39 hours per week + 3x6 hrs follow‐up

6.5 hr per day

up to 41

2 per week

Length of sessions

?

na

na

na

na

15 min‐1hr

1 hr

Full time

no

yes

yes

yes

yes

no

no

group or individual

both

group

group

group

both

both

individual

exercises

yes

yes

yes

yes

yes

yes

yes

work related exercises

yes

yes

yes

yes

yes

yes

yes

operant conditioning behavioural approach

yes

yes

yes

yes

yes

not clear

yes

pain coping/ management

yes

yes

yes

yes

yes

yes

no

back pain education

yes

yes

yes

yes

yes

no

no

ergonomic advice or occupational training

no

occupational therapy and ergonomic training

occupational therapy and ergonomic training

occupational therapy and ergonomic training

no

occupational therapy

yes

return‐to‐work advice

no

no

no

no

no

no

yes

workplace visit

no

no

no

no

no

no

no

therapists involved

multidisciplinary

multidisciplinary

multidisciplinary including physician, psychologist

occupational therapist, physician, psychologist,physical therapist, social worker

interdisciplinary program

physiotherapist,

occupational therapist, nurse, physician

physiotherapist

other aspects

vocational rehabilitation

recreation activities

aerobics, recreational activities

recreation activities

no

no

no

comparison

PCP + CBT

CAU

exercise therapy / pain management

outpatient intensive physical training

CAU

CAU

CAU/ light PCP

Figuras y tablas -
Table 2. Contents of intense PCP
Table 3. Contents of intense PCP

Jensen 2001

Jousset 2004

Kool 2005

Lindstrom 1992

Loisel 1997

Meyer 2005

Mitchell 1994

Roche 2007

Time span of training

4 wks

5 wks

3 wks

until RTW

13 wks

8 wks

8 wks

5 wks

Number of sessions

6 sessions + 20 hrs exercise

+ 6 booster sessions

6 hrs per day,

4 days a week

4 hrs per day / 6 days a week

approx. 11 with physical therapist, approx 10 self training sessions

(3 per week)

3,5 hr per day, 5 days a week

6 hrs per day, 5 days a week

Lenght of sessions

Full time

no

no

almost

no

unclear

almost

yes

yes

group or individual

both

both

group

individual

unclear

both

group

group

exercises

yes

yes

yes

yes

yes

yes

yes

yes

work related exercises

yes

yes

yes

yes

yes

yes

yes

yes

operant conditioning behavioural approach

yes

no

no

yes

yes

yes

yes

no

pain coping/ management

2 didactic sessions on

psychological aspects of pain +

2 sessions on medical aspects of pain

no

no

no

no

yes

no

no

back pain education

yes

no

no

yes

yes

no

yes

no

ergonomic advice or occupational training

2 sessions on ergonomics

work simulation

work simulation

no

yes, participatory ergonomics evaluation

education in ergonomics

no

occupational therapy

return‐to‐work advice

yes, workplace visit + rehabilitation plan

no

no

yes

yes

yes

no

no

workplace visit

yes

no

no

yes

yes

yes

no

no

therapists involved

physician, physical therapist, psychologist,

rheumatologist, physical therapist, occupational therapist, sports therapist, social worker, nurse, physiatrist

rheumatologist, physical and occupational therapist, sports therapist, social worker, nurse

physical therapist

back pain specialist; multidisciplinary medical, ergonomic and rehabilitation staff

interdisciplinary:rehabilitation physicians, psychologist, social worker, occupational therapist, physiotherapist

unclear

specialist in physical medicine, physiotherapist, psychologist

other aspects

no

no

no

no

no

case‐manager

recreational activities

no

no

comparison

CAU / CBT

PCP + CBT

pain centred treatment

pain centred treatment

CAU

CAU

exercise therapy

CAU

active individual therapy

Figuras y tablas -
Table 3. Contents of intense PCP
Table 4. Contents of intense PCP

Skouen 2002

Staal 2004

Steenstra 2006

Storheim 2003

van den Hout 2003

Time span of training

4 wks

max 3 mnths

13 wks

15 wks

8 wks

Number of sessions

5 per week for 4 weeks + follow‐up as in LMT

2 per week until RTW

2 per week 26 in total

2‐3 per week

28

Lenght of sessions

6 hr

1 hr

1 hr

1 hr

30‐90 min

Full time

almost

no

no

no

no

group or individual

both

individual

individual

group

both

exercises

yes

yes

yes

yes

yes

work related exercises

yes

yes

yes

not clear

yes

operant conditioning behavioural approach

yes

yes

yes

no

yes

pain/ coping management

no

no

no

no

no

back pain education

yes

no

no

no

yes

ergonomic advice or occupational training

yes

no

no

yes, training had a focus on ergonomic principles and functional tasks

yes, training by occupational therapist

return‐to‐work advice

no

yes

yes

no

yes

Workplace visit

no, occasional workplace intervention

no, but intervention was at workplace

no

no

yes, if necessary

therapists involved

physio therapist, nurse, psychologist

physiotherapist, occupational physician

physiotherapist, occupational physician

physical therapist

physiotherapist, occupational therapist, psychologist, occupational physician

other aspects

no

gradually increasing exercise, GP or occupational physician if workers wanted to

gradually increasing exercise

exercises accompanied by music

contact with patients' supervisor

comparison

CAU/ light PCP

CAU

CAU

CAU/ cognitive intervention

PCP + CBT

Figuras y tablas -
Table 4. Contents of intense PCP
Table 5. Clinical relevance

Study ID

1

2

3

4

5

Altmaier 1992

+

+

+

Bendix 1996

+

+

+

+

Bendix 1997

+

+

+

+

+

Bendix 2000

+

+

+

+

Corey 1996

+

+

+

Faas 1995

+

+

+

+

Gatchell 2003

+

+

+

+

Heymans 2006

+

+

+

+

Jensen 2001

+

+

+

+

Jousset 2004

+

+

+

+

Karjalainen 2003

+

+

+

+

+

Kool 2005

+

+

+

+

+

Lindstrom 1992

+

+

+

+

+

Loisel 1997

+

+

+

+

+

Meyer 2005

+

+

+

+

Mitchell 1994

+

+

+

+

Staal 2004

+

+

+

+

+

Steenstra 2006

+

+

+

+

Storheim 2003

+

+

+

Skouen 2002

+

+

+

+

Roche 2007

+

+

+

+

van den Hout 2003

+

+

+

+

Wright 2005

+

+

+

+

Figuras y tablas -
Table 5. Clinical relevance
Comparison 1. Light PCP vs care as usual for workers with acute back pain

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Proportion off work short term follow up Show forest plot

1

80

Odds Ratio (M‐H, Fixed, 95% CI)

0.36 [0.13, 1.03]

2 Time to return to work long term follow up Show forest plot

1

190

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

‐0.02 [‐0.30, 0.27]

Figuras y tablas -
Comparison 1. Light PCP vs care as usual for workers with acute back pain
Comparison 2. Light PCP vs care as usual for workers with sub acute back pain

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Time to return to work intermediate term follow up Show forest plot

1

201

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

‐0.18 [‐0.45, 0.10]

2 time to return to work long term follow up Show forest plot

1

105

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

‐0.35 [‐0.74, 0.03]

3 Time to return to work very long term follow up Show forest plot

1

103

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

‐0.30 [‐0.69, 0.09]

Figuras y tablas -
Comparison 2. Light PCP vs care as usual for workers with sub acute back pain
Comparison 3. Light PCP vs care as usual for workers with chronic back pain

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Time to return to work long term follow up Show forest plot

1

138

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

‐0.33 [‐0.67, 0.02]

2 Time to return to work very long term follow up Show forest plot

1

138

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

‐0.34 [‐0.69, 0.01]

Figuras y tablas -
Comparison 3. Light PCP vs care as usual for workers with chronic back pain
Comparison 4. Intense PCP vs care as usual for workers with acute back pain

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Proportion off work long term follow up Show forest plot

1

70

Odds Ratio (M‐H, Fixed, 95% CI)

0.22 [0.05, 1.06]

Figuras y tablas -
Comparison 4. Intense PCP vs care as usual for workers with acute back pain
Comparison 5. Intense PCP vs care as usual for workers with sub acute back pain

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Time to return to work short term follow up Show forest plot

1

59

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

‐0.10 [‐0.61, 0.41]

2 Time to return to work intermediate follow up Show forest plot

3

447

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

‐0.03 [‐0.41, 0.34]

3 Time to return to work long term follow up Show forest plot

4

395

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

‐0.23 [‐0.67, 0.21]

4 Time to return to work very long term follow up Show forest plot

2

Std. Mean Difference (Fixed, 95% CI)

‐0.39 [‐0.76, ‐0.02]

Figuras y tablas -
Comparison 5. Intense PCP vs care as usual for workers with sub acute back pain
Comparison 6. Intense PCP vs care as usual for workers with chronic back pain

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Proportion off work short term follow up Show forest plot

1

74

Odds Ratio (M‐H, Fixed, 95% CI)

0.16 [0.05, 0.49]

2 Time to return to work long term follow up Show forest plot

5

Std. Mean Difference (Random, 95% CI)

‐0.18 [‐0.37, 0.00]

3 Time to return to work very long term follow up Show forest plot

3

297

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

‐0.24 [‐0.58, 0.10]

Figuras y tablas -
Comparison 6. Intense PCP vs care as usual for workers with chronic back pain
Comparison 7. Intense PCP vs exercise program for workers with chronic back pain

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Proportion off work short term follow up Show forest plot

1

136

Odds Ratio (M‐H, Fixed, 95% CI)

1.0 [0.37, 2.70]

2 Time to return to work intermediate term follow up Show forest plot

2

114

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

‐0.22 [‐0.58, 0.15]

3 Time to return to work long term follow up Show forest plot

2

143

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

‐0.51 [‐1.44, 0.42]

4 Time to return to work very long term follow up Show forest plot

1

52

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

‐0.62 [‐1.21, ‐0.04]

Figuras y tablas -
Comparison 7. Intense PCP vs exercise program for workers with chronic back pain
Comparison 8. Light PCP vs intense PCP for workers with sub acute back pain

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Time to return to work intermediate term follow up Show forest plot

1

196

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

‐0.24 [‐0.52, 0.04]

Figuras y tablas -
Comparison 8. Light PCP vs intense PCP for workers with sub acute back pain
Comparison 9. Light PCP vs intense PCP for workers with chronic back pain

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 TIme to return to work long term follow up Show forest plot

1

109

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

‐0.15 [‐0.53, 0.22]

2 TIme to return to work very long term follow up Show forest plot

1

109

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

‐0.20 [‐0.57, 0.18]

Figuras y tablas -
Comparison 9. Light PCP vs intense PCP for workers with chronic back pain
Comparison 10. Intense PCP vs intense PCP with CBT for workers with chronic back pain

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Proportion off work intermediate follow up Show forest plot

2

126

Odds Ratio (M‐H, Fixed, 95% CI)

1.63 [0.76, 3.47]

2 Time to return to work long term follow up Show forest plot

2

Std. Mean Difference (Fixed, 95% CI)

0.05 [‐0.30, 0.40]

3 Time tor return to work very long term follow up Show forest plot

1

117

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

0.19 [‐0.17, 0.56]

Figuras y tablas -
Comparison 10. Intense PCP vs intense PCP with CBT for workers with chronic back pain
Comparison 11. Intense PCP vs CBT for workers with chronic back pain

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Time to return to work long term follow up Show forest plot

2

Std. Mean Difference (Random, 95% CI)

‐1.75 [‐4.45, 0.95]

2 Time to return to work very long term follow up Show forest plot

2

Std. Mean Difference (Random, 95% CI)

‐0.47 [‐1.36, 0.42]

Figuras y tablas -
Comparison 11. Intense PCP vs CBT for workers with chronic back pain
Comparison 12. Intense PCP vs cognitive intervention for workers with sub acute back pain

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Time to return to work short term follow up Show forest plot

1

64

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

‐0.10 [‐0.59, 0.40]

Figuras y tablas -
Comparison 12. Intense PCP vs cognitive intervention for workers with sub acute back pain
Comparison 13. Intense PCP vs pain‐centred treatment for workers with sub acute back pain

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Proportion off work short term follow up Show forest plot

1

173

Odds Ratio (M‐H, Fixed, 95% CI)

0.41 [0.22, 0.78]

2 Proportion off work long term follow up Show forest plot

1

166

Odds Ratio (M‐H, Fixed, 95% CI)

0.48 [0.26, 0.89]

Figuras y tablas -
Comparison 13. Intense PCP vs pain‐centred treatment for workers with sub acute back pain