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Table 2 Outcome measures and time of assessment in the DELTA study

From: Effectiveness and cost-effectiveness of a minimal psychological intervention to reduce non-severe depression in chronically ill elderly patients: the design of a randomised controlled trial [ISRCTN92331982]

Measure Moment in time
Name questionnaire/variable Screening Baseline FU1 FU2 FU3 FU4 Other
Marital status/living situation x - - - - - -
Occupation/work situation x - - - - - -
Education x - - - - - -
Gender x - - - - - -
Age x - - - - - -
Religion x - - - - - -
BDI - x x x - x -
Euroqol (QALY's) - x x x - x -
SF36 - x x x - x -
SGRQ - x x x - x -
PAID-1 - x x x - x -
ADL-scale from GARS - x x x - x -
SF36 - x x x - x -
UCL - x x x - x -
Personal mastery scale - x x x - x -
Self-efficacy-scale - x x x - x -
IPA - x x x - x -
SCL-90 subscale anxiety - x x x - x -
SSL-I 12 - x - - - x -
CBS List Chronic conditions - x - - - x -
Diabetes Symptom Checklist-Revised - x x x - x -
Life-events - - - - - x -
EPQ - - x - - - -
Year of diagnosis DM/COPD - x - - - - -
Smoking - - - - - x -
BMI - - - - - x -
Contamination in control group - - - - - x -
Direct costs within health care system - x x x x x -
Direct costs outside health care system - x x x x x -
Indirect costs outside health care system - x x x x x -
Lung function – if available - - - - - - After intervention
Hba1c – if available - - - - - - After intervention
Process evaluation - - - - - - During nurses training program and intervention period
Compliance (in process-evaluation) - - - - - - During intervention period
  1. FU = follow up