Participants
breast cancer
RECRUITMENT, BREAST CANCER
Women who had mammograms scheduled at one of the seven participating sites in the 8-month recruitment period for this nested questionnaire study (November 2020 to July 2021) were eligible (although one site did not begin recruitment until February 2021). Two groups of women were invited to participate: (a) women invited for first-time screening at any age (“prevalent screens”), and (b) women invited during the screening round within which they would reach 60 years (“incident screens” i.e., women aged 57–63 years). Additional inclusion criteria were that the participant was born biologically female and was able to provide informed consent. Exclusion criteria were that the participant previously had breast cancer or had a bilateral mastectomy.