Response to a novel, weight self‐awareness plan used in a multi‐component lifestyle intervention programme to reduce breast cancer risk factors in older women—Secondary analysis from the ActWELL trial.

Background: The ActWELL randomised controlled trial assessed the effectiveness of a weight management programme delivered by volunteer lifestyle coaches (LCs) in women attending breast clinics. The intervention focused on caloric intake and physical activity, utilising behavioural change techniques including a weight awareness plan (WAP). The current work is a secondary analysis of the ActWELL data and aims to examine the response to the weight self‐awareness plan (used as part of the intervention programme). Methods: The LCs invited participants (n = 279) to undertake an implementation intention discussion to formulate a self‐weighing (SW) plan. Bodyweight scales were offered, and recording books provided. The physical activity component of the intervention focused on a walking plan assessed by accelerometers. The LCs contacted participants by telephone monthly and provided personalised feedback. Mann–Whitney tests and chi‐squared analysis were used to examine the effect of SW on weight change. A qualitative evaluation utilising semi‐structured interviews was also undertaken. Results: Most participants (96.4%) agreed to set a weekly SW goal and 76 (27%) requested scales. At 12 months, 226 (81%) returned for follow up. The median (interquartile range) weight change for those who self‐ reported at least one weight (n = 211) was −2.3 kg (−5.0 to 0.0) compared to −1.2 kg (−5.0 to 0.03) in those who did not (n = 14). Participants who reported weights on more than eight occasions (39%) were significantly more likely (p = 0.012) to achieve 5% weight loss compared to those who weighed less often. Low numbers of accelerometers were returned that did not allow for significance testing. Qualitative data (n = 24) indicated that many participants found the WAP helpful and motivating. Conclusions: Greater adherence to the WAP initiated by volunteer coaches is associated with achieving 5% weight loss. Key points: Volunteer coaches successfully supported women to lose weight in the ActWELL trial.Secondary analysis demonstrated that adherence to a weight awareness programme was associated with achieving 5% weight loss. [ABSTRACT FROM AUTHOR]