Participants
Participants’ sociodemographic and health characteristics are presented by intervention group and site in Table Sociodemographic and health characteristics of participants by intervention group and site (Abbreviations: Y = cohort (year); SD = standard deviation


Each site offered between 2 and 4 OWG over the period of the study. The size of each OWG varied by site, ranging from 6–15 participants, with a 3:1 participant to facilitator ratio. This represents a protocol deviation, as the recommended size of an individual group was nine participants and one site had two walk groups that were larger than that. Table Outdoor walk group participant characteristics by session at each siteAge  Mean (SD)
