Table 1.

Included articles.

Author	Population	Intervention	Comparison	Outcome	Study design
Annesi 2006 [14]	165 adolescent, children, 70% African American	12 week YMCA program (3 days/week): 2003 treatment group-homework, PA, social support, behavior, health education, nutrition education, self-regulatory skills 2005 treatment group-homework, PA, social support, behavior, health education, nutrition education	YMCA participants, unstructured program	2005 treatment improved self-efficacy	O
Annesi et al. 2007 [16]	392 adolescent, children, African American	12 week YMCA program (3 days/week): homework, tutoring, PA, social support, behavior, health education, nutrition education	Physical education class YMCA charter school, same as intervention	Intervention and control improved self-efficacy	O
Annesi et al. 2008 [15]	269 children, African American, BMI > 95%	12 week YMCA program (3 days/week): homework, snack, PA, nutrition education, health education, behavior, social support	YMCA wait listed group homework and snack	Intervention improved self-efficacy	O
Dishman et al. 2004 [17, 24]	2744 adolescent females, 24 schools	2 year school based program: physical education, health education, social support (frequency not reported)	Standard physical education	No effect of program on self-efficacy	RCT
Jamner et al. 2004 [18]	58 adolescent females, group assignment	4-month school-based program (5 days/week): physical education, social support, health education	Not described	Intervention improved self-efficacy	QE
Lubans et al. 2010 [19]	108 adolescent, Austrian secondary school	8-week school-based program (2 days/week): resistance training during lunch	Usual diet and activity	No statistically significant improvement in self-efficacy	RCT
Stevens et al. 2003 [20]	1447 children, 41 American Indian schools	3-year school-based program: school lunch, physical education, education nutrition exercise, social support (frequency not reported)	Not described	1999 and 2000 improved PA self-efficacy, female only	RCT
Verstraete et al. 2007 [21]	764 children, 16 Belgium schools	2-year school-based program: physical education, health education, PA (frequency not reported)	Not described	No effect of program self-efficacy	RCT
Wilson et al. 2002 [23]	53 adolescents, children, African American 30% ideal weight for height	12-week after-school program (3 days/week): social cognitive theory (SCT) (nutrition education, PA, behavior) or SCT/Motivational Intervention (nutrition education, PA, behavior) videotape interview	Usual diet, PA, health education material	SCT/Motivational Intervention improved PA self-efficacy	QE
Wilson et al. 2005 [22]	48 adolescent, children, 83% African American, underserved area	24-week school-based program (3 days/week): homework, PA, SCT/Motivational Intervention videotape interview	General health education	No effect of program on self-efficacy	QE

Observational study design (O), physical activity (PA), quasiexperimental study design (QE), randomized control trial (RCT).