Adarkwah 2016.

Methods	Study design: randomized trial Unit of allocation: patient Unit of analysis: patient Power calculation: unclear
Participants	Care setting: primary care, Germany Health professionals: 32; general practitioners; fully trained Patients: 304; cardiovascular risk prevention; male and female
Interventions	Single intervention: patient‐mediated intervention (Computerised decision aid (TTE)) Quote: "Immediately after giving their informed consent, patients were randomized to consultation with the emoticons (Fig. 2) or the TTE illustration (Fig. 3). GPs entered a study ID into the decision support software, which automatically allocated each patient into one of the two conditions according to an a priori randomized sequence. GPs learned about each patient’s allocation by the illustration displayed by the software. They then started a discussion with their patients on the basis of the allocated display, i.e. either emoticons, or TTE, respectively." Page 3, figure 3 Single intervention: patient‐mediated intervention (Computerised decision aid (emoticon)). Figure 2
Outcomes	PEF‐FB‐9 (SDM‐Q9) (continuous)
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Quote: "GPs entered a study ID into the decision support software, which automatically allocated each patient into one of the two conditions according to an a priori randomized sequence." page 3
Allocation concealment (selection bias)	Low risk	Quote: "GPs entered a study ID into the decision support software, which automatically allocated each patient into one of the two conditions according to an a priori randomized sequence." page 3
Blinding (performance bias and detection bias) Participant‐reported outcome	High risk	Performance bias. Quote: "GPs recorded the decision made, such as specific medications, dose adjustments, behavioral measures or no change at all." page 3 Quote: "GPs learned about each patient’s allocation by the illustration displayed by the software." page 3
Incomplete outcome data (attrition bias) Participant‐reported outcome	Unclear risk	Comment: we cannot assume that all patients replied to all questions related to outcomes. Missing outcome data were not specified.
Selective reporting (reporting bias)	Low risk	Comment: relevant outcomes pre‐specified in the study protocol were reported in the results (Clinical Trials Register Platform (ICTRP, ID DRKS00004933)).
Other bias	Low risk	Comment: no evidence of other risk of biases.
Baseline measurement? Participant‐reported outcome	Unclear risk	Comment: no baseline measure of primary outcome.
Protection against contamination?	High risk	Comment: patients were randomized.
Baseline characteristics patients	Low risk	Quote: "Both study arms were well‐balanced regarding socio demographic and clinical variables." page 6. See Table 1
Baseline characteristics healthcare professionals	Unclear risk	Comment: no report of characteristics.