Larson 2009.

Methods	Study design: controlled before‐after study (independent samples, multiple time points) Sampling frame: adult residents of Tennessee with working telephone Sampling method: random‐digit dial Collection method: telephone interview (n = 21,064) Description of the community coalition: The Nashville Health Disparities Coalition was formed in response to CDC's REACH 2010 funding. The lead agency was a local comprehensive health center, and other coalition organizations included local universities, county hospital, public health department, grassroots organizations, ministers, faith‐based organizations, and concerned citizens. The first 10 community members recruited became the Community Action Plan Committee, which would develop the mission and vision for the group, create bylaws, and elect officers. 4 strategy teams were created to focus on tobacco use, obesity, screening, and access to health care. Each team was staffed by a community health educator and a community outreach worker
Participants	Communities: all Tennessee communities included in analysis, with North Nashville community as intervention group Country: USA Ages included in assessment: 18+ Reasons provided for selection of intervention community: decision based on data indicating that African American residents had significantly higher age‐adjusted death rates due to cardiovascular disease and diabetes compared with whites in the same county Intervention community (population size): North Nashville (42,000) Comparison community (population size): Tennessee State (not reported)
Interventions	Name of intervention: Nashville REACH 2010 Initiative Theory: Social‐Ecologic Model Aim: to reduce disparities in heart disease and diabetes among African Americans in North Nashville, TN Description of costs and resources: not reported Components of the intervention: Hundreds of community actions were documented during the initiative, including changes in infrastructure such as expanded clinic hours, educational campaigns, smoking cessation classes and support groups, advocacy training to help volunteers impact smoking policy at the organizational level, health screenings, and activities to promote healthy eating and exercise Start date: 2001 Duration: 5 years
Outcomes	Outcomes and measures Smoking (self reported every day/some days/former/never) BMI, physical activity, and eating behaviors (data collection method not reported) Time points: baseline (2001) and annually thereafter (2002 to 2005)
Notes	Results from the latter outcome group have not yet been published in manuscript form, and lack detailed descriptions of Methods and Results Funding source: government
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	High risk	Intervention was not randomly assigned
Allocation concealment (selection bias)	High risk	No allocation concealment
Baseline outcome measurement similar	Unclear risk	Age‐standardized proportions of smokers similar between target population and other Tennessee African Americans. No baseline data are presented for analyses of body mass index, physical activity, eating behaviors, diabetes, or heart disease
Baseline characteristics similar	High risk	Age and gender distributions differed significantly between target group and other Tennessee African Americans. No other characteristics compared
Blinding of outcome assessment (detection bias) All outcomes	Low risk	Population‐based telephone survey
Incomplete outcome data (attrition bias) All outcomes	High risk	Response rates declined over time(from 68% to 46%) in target population; no response rates presented for comparison group
Blinding of participants and personnel (performance bias) All outcomes	High risk	No blinding reported
Protection against contamination	Unclear risk	No efforts to protect against contamination reported. Intervention and comparison groups within the same state
Selective reporting (reporting bias)	Low risk	Main outcomes are reported