Introduction—Addressing maternal smoking and child secondhand smoke exposure is a public health priority. Standard care advice and self-help materials to help parents reduce child secondhand smoke exposure is not sufficient to promote change in underserved populations. We tested the efficacy of a behavioral counseling approach with underserved maternal smokers to reduce infant’s and preschooler’s secondhand smoke exposure.
Design—A two-arm randomized trial: experimental behavior counseling versus enhanced standard care (control). Assessment staff members were blinded.
Setting/participants—Three hundred randomized maternal smokers were recruited from lowincome urban communities. Participants had a child aged