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Table 2 Overview of outcome measures and their instruments and time path

From: The effectiveness of the “Brainwork Intervention” in reducing sick leave for unemployed workers with psychological problems: design of a controlled clinical trial

 

Time path

 

Baseline

4 months

8 months

12 months

Continuous

 

T0

T1

T2

T3

(until 12 months)

Data instruments

     

Dutch SSA* Database

    

X

Questionnaires 1 to 4

1

2

3

4

 

Measurements

     

Primary outcome

     

Duration of sick leave

    

X

(SSA Database)

     

Secondary outcome

     

Proportion of subjects returned to work at 8 and 12 months (SSA Database)

  

X

X

 

Duration from transfer to the SSA until RTW (SSA Database)

    

X

Number of days of paid employment during follow-up

 

X

X

X

 

(questionnaire and SSA database)

Degree of participation

 

X

X

X

 

(questionnaire and SSA database)

Psychological complaints

X

X

X

X

 

(questionnaire)

Self-efficacy for return to work

X

X

X

X

 

(questionnaire)

Costs and benefits from SSA perspective

    

X

(SSA Database)

  1. *Dutch SSA = Dutch Social Security Agency.