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Table 2 Primary outcomes, instruments and measurement points

From: Well informed physician-patient communication in consultations on back pain – study protocol of the cluster randomized GAP trial

 

t0-physician

t0-patient

t1-patient

t2-patient

t1-physician

t2-physician

Quality of the patient-physician communication (patient)

      

Shared Decision-Making Questionnaire (SDM-Q-9) [38]

  

X

   

Questionnaire on the communication behaviour of physicians (KOVA) [39]

  

X

   

Scale “Satisfaction” of the P.A.INT-questionnaire [40,41,42,43]

  

X

   

Quality of the patient-physician communication (physician)

      

Scale “Effective and open communication” of the KOVA [39]a,b

X

   

X

X

Scales “Empathy”, “Openness and coherence”, “Positive regard and appreciation”, “Contact barriers” and “Satisfaction” of the P.A.INT-questionnaire [40,41,42,43]a

X

   

X

X

One Item of the Man-Son-Hing scale. [44]a

X

   

X

X

Shared Decision-Making Questionnaire (SDM-Q-Doc) [45, 46]a

X

   

X

X

Informedness (patient)

      

Self-reported knowledge questionnairec

 

X

 

X

  

Self-reported knowledge global questionc

  

X

   

Perceived informedness questionnairec

   

X

  

Perceived informedness global questionc

  

X

   
  1. aInstruments will be adapted so that physicians assess their communication behaviour across consultations
  2. bInstrument will be adapted for assessing the communication from physician’s perspective
  3. cThese instruments will be developed for the project. The questionnaires will be checked for understandability and acceptance in a cognitive pretest using one-to-one interviews with eight patients having experienced back pain [47]