Table 2.

Description and timeline of data collection prior to, during, and following the 13-week C.H.A.M.P. Families intervention. BMI: body mass index, BMI-z: standardised BMI, RE-AIM: Reach, Effectiveness, Adoption, Implementation, Maintenance.

Outcome(s)	Measure(s)	Data Collection Time Points
		Baseline (≤Four Weeks Pre-Intervention)	Mid-Intervention (Week Six)	Final Session of Intervention (Week 13)	Post-Intervention (≤Two Weeks after Final Session)	Follow-Up (Six Months Post-Intervention)
Demographic Variables	Parent: Age, sex, ethnicity, marital status, education level, household income, relationship to child Child: Age, sex, estimated age that weight became an issue, years child has been overweight	X X
Feasibility Outcomes, RE-AIM Dimensions [51]:
Reach	Family (parent and child) demographics compared to census demographics in London and Ontario, Canada; records of participant and/or non-participant inquiries to determine participate rate, reasons for participating, reasons for declining to participate, and the most effective recruitment methods	X
Effectiveness	Short-term (i.e., baseline to mid and/or post-intervention) measurements of primary (i.e., child BMI-z) and secondary outcomes (i.e., parent BMI, health-related quality of life; general health and well-being; family communication, cohesion, and satisfaction; parental self-efficacy; and child physical activity) short-term attrition, reasons for drop out, qualitative data pertaining to programme impact (focus groups)	X	X	X	X
Adoption (Setting and Staff)	Roles, credentials, demographic, and/or representativeness information of delivery settings and intervention agents/staff, where applicable	X	X	X	X	X
Implementation	Fidelity and adaptations to study protocol, intervention adaptations, completion of participant worksheets, and associated costs (including in-kind) of programme	X	X	X	X	X
Maintenance (Individual and Setting)	Individual: Six-month follow-up on primary (i.e., child BMI-z) and secondary outcomes (i.e., parent BMI, health-related quality of life; general health and well-being; family communication, cohesion, and satisfaction; parental self-efficacy; and child physical activity), long term (i.e., six-month) attrition Setting: Mixed-methods questionnaire delivered to staff and organisations (>six months post-intervention) to assess perceptions of programme and interest in future involvement					X

Note. ‘X’ indicates the timepoint(s) that each outcome was measured.