Donath 2015

Methods	Random allocation by minimization Single‐blinded Study duration: 12 weeks Drop out: 8% Location: Switzerland
Participants	Population: staff from the confederate Swiss health insurance company EGK Intervention: 15 participants Control: 16 participants Demographics: Age: Intervention: 45 (SD 12), control: 40 (SD10) Sex (m/f): intervention 4/11, control 4/12 BMI (kg/m²): Intervention: 23.7 (SD 3.7), control: 24.7 (SD 5)
Interventions	Duration of intervention: 12 weeks Intervention: Point of choice prompt + information Control: information only
Outcomes	Outcome name, measurement time/tool (units of measurement) Sitting and standing time (hours/week) at 6 and 12 weeks of intervention measured by using the ActiGraph wGT3X‐BT Test d2 of Brickenkamp (paper and pencil test used to examine attention and concentration processes) aneuromuscular outcomes (Strength‐endurance and balance outcome).
Notes	no conflict of interest
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Group assignment was randomly conducted according to the minimization method: age, gender, BMI, physical activity and working time served as strata criteria in order to minimize group differences in demographical variables.
Allocation concealment (selection bias)	Unclear risk	No information
Blinding of participants and personnel (performance bias) All outcomes	High risk	Testing personnel were blinded to group allocation. Participants were not blinded.
Blinding of outcome assessment (detection bias) All outcomes	Low risk	Sitting and standing were measured using accelerometer‐inclinometers, so misreporting of these activities was not possible.
Incomplete outcome data (attrition bias) All outcomes	High risk	3 participants in the control group and 4 participants in the intervention group withdrew due to job changes and illness (8% of participants). They were not included in the analysis (i.e. no intention‐to‐treat analysis).
Selective reporting (reporting bias)	Low risk	All outcomes mentioned in the method section were reported. Study protocol was not available.
Baseline comparability/ imbalance	Low risk	Group differences were minimized.
Validity of outcome measure	Low risk	The accelerometer is a valid instrument for the measurement of sitting time.