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Table 2 Study outcomes/variables, measurement tools and data collection schedule

From: Study on advance care planning in care dependent community-dwelling older persons in Germany (STADPLAN): protocol of a cluster-randomised controlled trial

Outcome/ variable

Measured by

Validated version*

Baseline

6 months (t1)

12 months (t2)

Assessed by

Patient activation (primary outcome)

Patient activation Measure (PAM-13) [42]

German version [36]

RA – at home visit

ACP behaviour

Patient engagement survey [41]

English version [41]

 

RA – at home visit

Anxiety and depression

Hospital anxiety and depression scale (HADS) [40]

German version [43]

 

RA – at home visit

Self-reported, health-related quality of life

Veterans Health Administration (VR-12) [38, 39]

German version [44]

 

RA – at home visit

Deaths, hospitalization, institutionalisation

Own questions

n.a.

RA – at home care service & home visit

Proxy/Family involvement**

Audit of ACP discussion

n.a.

 

Nurse facilitator

Sociodemographic & clinical data, hearing capacity by RAI-NH [45] & vision

Own questions

n.a.

  

RA- at home care service & home visit

GPs involvement

Own questions

n.a.

 

Physician visits, formal & informal care

Own questions

n.a.

 

RA – at home visit

Healthcare preferences

Hypothetical scenarios

Adapted German version [46]***

 

RA – at home visit

  1. *all instruments were pretested in a German version in the pilot study; **intervention group only; *** adapted version of the Life-Support Preferences Questionnaires and Emanuel Medical Directive, which will be validated in the STADPLAN study within a limited subgroup (n = 120); RA Research assistant, RAI-NH Resident Assessment Instrument for Nursing Homes