|Summary of the participant and study characteristics of included publications|
|Participant characteristicsa||Mean (standard deviation) for self-efficacy analysis||Mean (standard deviation) for physical activity analysis|
|Mean age in years of participants (range 28–77 years)a||49.1 (9.5)||50.0 (10.0)|
|Mean BMI of participants (range 30–42)a, b||34.5 (3.7)||34.5 (3.9)|
|Mean percentage of females per study (range 0-100%)a, b||79.2% (29.7)||73.1% (32.7)|
|Mean percentage of white participants per study (range 0-100%)a, b||59.6% (31.3)||59.0% (36.3)|
|Study designc||Frequencies for self-efficacy analysis||Frequencies for physical activity analysis|
|Type of self-efficacy measuredd||Frequencies for self-efficacy analysis||Frequencies for physical activity analysis|
|Combined barrier and task self-efficacy||1||N/A|
a Data on age, exact BMI, gender and ethnicity was not provided by all studies.
b This is the range for both the self-efficacy and physical activity studies.
c This data is for the statistical analyses conducted, some of the studies were RCT’s but were analysed as pre-post studies.
d One study measured perceived behavioural control, not self-efficacy .
Olander et al.
Olander et al. International Journal of Behavioral Nutrition and Physical Activity 2013 10:29 doi:10.1186/1479-5868-10-29