Assessing the Feasibility of the "Heart Care Pairs" Intervention

1-item self-rated health status (Bullinger, 1996; Dumas, et al, 2020)

10-item Perceived Stress Scale (PSS-10; Roberti, et al, 2006). Responses range from 0=Never to 4=Very often. Scores are summed for total perceived stress score ranging from 0-40 with higher scores meaning higher perceived stress.

1-item cigarette smoking status and number cigarettes per day

PHQ-9 depression screen (Kroenke, et al, 2001). Respondents endorse symptoms of depression over the past 2 weeks on a scale from 0=not at all to 3=nearly everyday. Scores are summed for total scores ranging from 0 to 27 with higher scores indicating greater severity of depression symptoms.

GAD-7 screen for anxiety symptoms (Spitzer, et al., 2006). Respondents endorse symptoms of anxiety over the past 2 weeks on a scale from 0=not at all to 3=nearly everyday. Scores are summed for total scores ranging from 0 to 21 with higher scores indicating greater severity of anxiety symptoms.

Approximation of body size based on clinic measured height and weight

Brief assessment of heart healthy eating, self-report recall for past week,16 items. Items assess self-reported number of servings per type of food in the past week. Items are scored based on thresholds meeting a mediterranean diet eating pattern (e.g., greater than or equal to 2 servings of vegetables per day). Scores range from 0-16 with higher scores being more adherent to mediterranean diet pattern (more heart healthy diet).

Self-reported walking, moderate physical activity, vigorous physical activity, and sedentary time, 7-items (Lee, et al, 2011). Total met minutes are calculated for each activity domain. Walking MET minutes = 3.3*walking days* walking minutes. Moderate MET minutes = 4.0*moderate days*moderate minutes. Vigorous MET minutes=8.0*vigorous days*vigorous minutes. Total MET minutes = Waling MET min+Moderate MET min+Vigorous MET min.

1-item total average sleep time (Lloyd-Jones, et al, 2022)

Self reported medication adherence to blood pressure medicines (Zeller, et al., 2008) 1-item with 1=take all BP medications at the same time every day (excellent adherence) to 6=Hardly take any BP medications (poor adherence).

Measure of autonomy, self-report 19-tems (Levesque, et al, 2007). 19-items assessed using a Likert-type scale from 1=Not at all true to 7=Very true. Mean of scores will be calculated with higher score meaning greater autonomy over heart healthy behaviors (taking medications, healthy diet, exercise).

Measure of autonomy support, self-report 6-items (Williams, 2006). Responses are on a Likert Scale. Mean scores will be calculated with higher scores indicating greater support from "important others" with efforts to lower blood pressure.

Social support from family, friends, supportive other related to healthy diet and exercise behavior (Sallis, et al., 1987). Responses range from 0=Rarely to 3=very often. Each question will be asked for "Family," "Friends," and "Study Partner." Mean scores for each relationship type will be calculated with higher scores indicate greater support with health behavior.

A total of 19-items self-report for measures of global social support and subscales for: emotional/informational, tangible, affectionate, and positive social interaction. Responses to items range from 1=none of the time to 5=all of the time. The mean items responses are taken for each subscale with higher scores meaning greater social support (Sherbourne \& Stewart, 1991)