Objective The COVID‐19 pandemic has resulted in significant changes to daily life and many health‐related behaviors. The objective of this study was to examine how the stay‐at‐home/safer‐at‐home mandates issued in Colorado (March 2020–May 2020) impacted lifestyle behaviors and mental health among individuals with overweight or obesity participating in two separate behavioral weight loss trials ( n = 82). Methods Questionnaires were used to collect qualitative and quantitative data on challenges to weight loss presented by the COVID‐19 pandemic, including changes in dietary intake, physical activity, sedentary behavior, and mental health during the stay‐at‐home/safer‐at‐home mandates. Results Using a convergent mixed method approach integrating qualitative and quantitative data, the greatest challenge experienced by participants was increased stress and anxiety, which led to more unhealthy behaviors. The majority perceived it to be harder to adhere to the prescribed diet (81%) and recommended physical activity (68%); however, self‐reported exercise on weekdays increased significantly and 92% of participants lost weight or maintained weight within ±1% 5–6 weeks following the stay‐at‐home mandate. Conclusion Study results suggest that obesity treatment programs should consider and attempt to address the burden of stress and anxiety stemming from the COVID‐19 pandemic and other sources due to the negative effects they can have on weight management and associated behaviors.

IntroductionA key contributor to underimmunisation is parental refusal or delay of vaccines due to vaccine concerns. Many clinicians lack confidence in communicating with vaccine-hesitant parents (VHP) and perceive that their discussions will do little to change parents’ minds. Improving clinician communication with VHPs is critical to increasing childhood vaccine uptake.Methods and analysisWe describe the protocol for a cluster randomised controlled trial to test the impact of a novel, multifaceted clinician vaccine communication strategy on child immunisation status. The trial will be conducted in 24 primary care practices in two US states (Washington and Colorado). The strategy is called Presumptively Initiating Vaccines and Optimizing Talk with Motivational Interviewing (PIVOT with MI), and involves clinicians initiating the vaccine conversation with all parents of young children using the presumptive format, and among those parents who resist vaccines, pivoting to using MI. Our primary outcome is the immunisation status of children of VHPs at 19 months, 0 day of age expressed as the percentage of days underimmunised from birth to 19 months for 22 doses of eight vaccines recommended during this interval. Secondary outcomes include clinician experience communicating with VHPs, parent visit experience and clinician adherence to the PIVOT with MI communication strategy.Ethics and disseminationThis study is approved by the following institutional review boards: Colorado Multiple Institutional Review Board, Washington State Institutional Review Board and Swedish Health Services Institutional Review Board. Results will be disseminated through peer-reviewed manuscripts and conference presentations.Trial registration numberNCT03885232.