PREVENT Tool Study: Late Effects Clinic

• Physical activity will be measured using a triaxial accelerometer (Actigraph GT3X+, Actigraph of Ft. Walton Beach, FL). The participant will be instructed to wear the accelerometer on an elasticized belt, on the left mid-axillary line. The Actigraph is one of the most common accelerometers used for scientific purposes. Participants will be encouraged to wear the accelerometer 24-hours per day for at least 7-days, including 2 weekend days. Participants completed a brief Health Behavior & Attitudes Survey using questions from the International Physical Activity Questionnaire Mean changes from baseline and 3-month follow-up were calculated as the follow-up measure minus the baseline measure, averaged across the intervention groups.
• Note: Actigraph measure was dropped due to university mail distribution delays during the remote work period of the COVID-19 pandemic. Self-reported change in minutes of physical activity became the primary outcome.

• Physical activity will be measured using a triaxial accelerometer (Actigraph GT3X+, Actigraph of Ft. Walton Beach, FL). The participant will be instructed to wear the accelerometer on an elasticized belt, on the left mid-axillary line. The Actigraph is one of the most common accelerometers used for scientific purposes. Participants will be encouraged to wear the accelerometer 24-hours per day for at least 7-days, including 2 weekend days. Participants completed a brief Health Behavior & Attitudes Survey using questions from the International Physical Activity Questionnaire Mean changes from baseline and 3-month follow-up were calculated as the follow-up measure minus the baseline measure, averaged across the intervention groups.
• Note: Actigraph measure was dropped due to university mail distribution delays during the remote work period of the COVID-19 pandemic. Self-reported change in minutes of physical activity became the primary outcome.

Patient-reported food intake behaviors (fruit and vegetable intake, whole grains, sugar-sweetened beverages and snacking behaviors) are collected using a brief Health Behavior & Attitudes Survey. Responses are dichotomized into a binary yes (1)/no (0) score indicating whether or not the patient is meeting the food intake recommendation for each food group. The total number of food intake behaviors are scored on a 5 item scale (range 0-5), maximum improvement in number of behaviors=5. Mean changes from baseline and 3-month follow-up were calculated as the follow-up measure minus the baseline measure, averaged across the intervention groups.

A survey (24-questions) containing validated subscales assessed provider's satisfaction with the PREVENT tool on subscales assessing acceptability, feasibility, and appropriateness of the tool, and satisfaction with specific components of the tool. Items were scored on a 5-point Likert scale with a higher score indicating greater satisfaction. Subscales were summed to generate the average across all questions (range 1-5) and was reported as overall satisfaction.

Fidelity will be measured using direct observation of patient-provider interactions while using the PREVENT tool. A direct observation checklist will be used by the observer to determine the number of interactions with the PREVENT tool that were implemented as intended.

A survey (8 questions) assessed provider's intent to change their behavior and continue using PREVENT. Questions were adapted from Legare's CPD Reaction Questionnaire and asked using a 5-point Likert scale (range 1-5). An average of all responses was calculated with a higher score indicating greater motivation for sustained use.

Qualitative in-depth interview with providers who used the PREVENT tool. Qualitative content analysis methods were used to summarize key themes related to provider perceptions of the tool and ability to use the tool in routine clinical practice.

Qualitative in-depth interview with providers who used the PREVENT tool. Qualitative content analysis methods were used to summarize key themes related to provider perceptions of the tool and ability to use the tool in routine clinical practice.

Semi-structured interviews with adolescent study participants (n=10).

Semi-structured interviews with parents/guardians (n=10) of study participants.

Collected from patient's medical record. BMI z-score is a standardized calculation accounting age and sex using the Centers for Disease Control and Prevention Growth Charts. A z-score represents the standard deviation from the population mean. A z-score of zero represents the population mean. Mean change in BMI z-score was calculated by subtracting the baseline mean from the follow-up mean for each intervention group. A decrease in z-score is a favorable outcome.

Collected from patient's medical record. Blood pressure is measured in mmHg. The mean change was calculated by subtracting the baseline mean from the follow-up mean for each intervention group.

Collected from patient's medical record

Collected from patient's medical record

A survey (6-question) administered to patients will assess attitudes toward and readiness for behavior change. Questions are asked using a 5-point Likert scale (range: 0-5) with a higher score indicating more positive attitudes.

The Clinical Sustainability Assessment Tool (CSAT) will assess clinic-level readiness and capacity for sustainability of the PREVENT tool. The CSAT tool will examine organization, financial, regulatory and political factors that may influence sustainability. 10 items scored on a 7-point scale, with higher scores indicating greater capacity for sustainment. The average of the 10 items is reported (range 1-7).