To help tenants sustain smoking cessation after an intervention, which ecological level should focus be on?

Focusing on the public policy level is crucial for helping tenants sustain smoking cessation after an intervention because public policies can create an environment that supports and reinforces individual behavior change. By implementing policies that restrict smoking in public areas, regulate tobacco marketing, increase taxes on tobacco products, and provide funding for cessation programs, communities can create a supportive infrastructure that makes it easier for individuals to maintain their commitment to quitting smoking.

Public policies can also lead to broader societal norms that discourage smoking, making it less socially acceptable and decreasing the likelihood of relapse. This level of intervention addresses the larger socio-economic and cultural factors that influence individual behaviors, thereby promoting long-term health outcomes and making smoking cessation a sustainable goal for individuals.

In contrast, while the organizational, individual, and interpersonal levels are important, they primarily focus on direct behavior change strategies or support systems. They are less effective in creating the sweeping changes in society that public policy interventions can achieve, thus limiting the sustainability of individual smoking cessation efforts.