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Table 2 Study variables and measurement timetable

From: Testing a pain self-management intervention by exploring reduction of analgesics’ side effects in cancer outpatients and the involvement of family caregivers: a study protocol (PEINCA-FAM)

Study variable

Instrument

Assessed in patients

Assessed in FCs

Week 0

Week 1

Week 2–5

Week 6

Demographics, patient

Patient Information Questionnaire

X

 

X

   

Demographics, FC

FC Information Questionnaire

 

X

X

   

Clinical data

Medical Record Review Form

X

 

X

   

Average pain and worst pain

Pain management diarya: Brief Pain Inventory (BPI)

X

 

X

X

X

X

Pain alleviation through pain medication

X

 

X

X

X

X

Pain interference with function

X

 

X

X

X

X

Duration of pain

Bowel movements and use of laxatives

Side-effects of pain and cancer treatment

Pain management diarya:

X

 

X

X

X

X

Knowledge of cancer pain

Patient Pain Questionnaire

X

 

X

  

X

Family Pain Questionnaire

 

X

X

  

X

Constipation

Constipation Assessment Scale

X

 

X

X

X

X

Self-efficacy

Self-Efficacy Questionnaire in patients with cancer

X

 

X

  

X

Caregiver version of the Self-Efficacy Questionnaire

 

X

X

  

X

Anxiety and depression

Hospital Anxiety and Depression Scale

X

 

X

  

X

Functional status

Eastern Cooperative Oncology Group Performance Status

X

 

X

  

X

  1. Note. aPain management diary: daily assessment of average and worst pain, pain alleviation, and pain interference with function via BPI Brief pain inventory as well as duration of pain, bowel movements/ use of laxatives, side effects of pain and of cancer treatment via pain management diary