Participant flow-through trial and sample characteristics

CONSORT diagram showing the flow of participants in the trial comparing app-based mindfulness training with controls. A total of 549 individuals completed an online study screener form and an e-signature consent form to be contacted by the study staff. Of those assessed by initial survey, 276 people did not finish the e-consent process. The phone-based apps allowed for automated recording of each participant’s app use, and records were visually inspected by study staff, who transcribed records to the dataset. The Headspace app interface provided the number of minutes each participant completed in open sessions and so did not include in the total minutes each session’s didactic preamble of instructions, which were variable in length, resulting in method artifact lower adherence values for app-based mindfulness training participants than for controls. ITT = intent to treat.
Baseline descriptive variables for the randomized sample and by study groupThere was no statistically significant group difference for any measured variable shown at baseline.After the quit date, 7.0% of the sample used a cessation quit aid, such as gum or patches, even though the study interventions did not actively make this recommendation. Descriptive statistics for 7-day point-prevalence abstinence and mean number of daily cigarettes, by week and study group. 