Food Introduction for Risk Reduction, Support Tolerance: Behavioral Intervention for Toddler Eating Success (FIRST BITES)

其他：Education Alone

行为的：Education

Educational materials provide guidance on peanut feeding practices and recommendations for continued peanut consumption following the initial supervised introduction.

其他：Education plus behavioral reinforcement

行为的：Education and Reminders/Supportive Communication

In addition to the supervised community-based peanut introduction event and educational materials, reinforcements will also be added. Behavioral reinforcement may include reminder messages, prompts, and supportive communications intended to encourage adherence to peanut feeding recommendations and increase caregiver confidence with continued peanut introduction.

Recruitment, Attendance, Retention, Assessment Completion, and Engagement Rates and Feasibility of Intervention Measure (FIM) Scores

Feasibility will be assessed using recruitment, enrollment, attendance, retention, and engagement metrics, including the number of families expressing interest, screened, eligible, enrolled, attending a community feeding event, completing supervised peanut introduction, randomized, completing the 6-week assessment, and completing the 3-month assessment. Engagement will be assessed using response rates during weekly text-message check-ins among participants assigned to behavioral reinforcement. Feasibility will also be assessed using the Feasibility of Intervention Measure (FIM), a 4-item participant-reported measure. Total scores range from 4 to 20, with higher scores indicating greater perceived feasibility of the intervention.

Acceptability of Community Feeding Events and Behavioral Reinforcement Strategy Measured by Acceptability of Intervention Measure (AIM) Scores and Qualitative Interview Findings

Acceptability will be assessed using the Acceptability of Intervention Measure (AIM) and qualitative caregiver interview data. The AIM will assess caregiver perceptions of the acceptability of the community feeding event and, for participants assigned to the intervention arm, the 6-week behavioral reinforcement text message program. The AIM is a 4-item participant-reported measure with total scores ranging from 4 to 20, with higher scores indicating greater acceptability. Qualitative interviews will assess caregiver perceptions of the acceptability of the community feeding event, educational materials, peanut preparation demonstration, supervised feeding process, behavioral reinforcement strategy, and follow-up procedures. Interview data will be analyzed to identify caregiver-reported barriers, facilitators, perceived strengths, and suggested refinements.

Caregiver-Reported Comfort, Staff-Observed Safety Events, Adverse Events, Emergency Medical Interventions, and Safety Concerns During Supervised Peanut Introduction

Perceived safety will be assessed using caregiver-reported comfort with the supervised peanut introduction process, study staff observations during the community feeding event, documentation of observed or reported symptoms and adverse events, emergency medication administration, emergency medical services activation, and caregiver-reported safety concerns. Safety outcomes will be summarized descriptively overall and by study site.

Caregiver-Reported Peanut Offering, Peanut Ingestion, Feeding Frequency, and Peanut Protein Consumption

Adherence to ongoing peanut feeding will be assessed using caregiver-reported peanut offering and ingestion. Measures will include whether peanut was offered to the infant, whether the infant ingested peanut, frequency of peanut offering and ingestion, and estimated quantity of peanut protein consumed. Data will be collected at baseline, 6 weeks, and 3 months. For participants assigned to the behavioral reinforcement arm, weekly text-message check-ins during the 6-week intervention period will also be used to assess week-by-week adherence patterns.

Caregiver Self-Efficacy Measured by the PROMIS General Self-Efficacy Scale

Caregiver self-efficacy will be assessed using the Patient-Reported Outcomes Measurement Information System (PROMIS) General Self-Efficacy Scale, a 4-item caregiver-reported measure, and additional study-specific items related to caregiver confidence in introducing and maintaining peanut in the infant's diet. PROMIS General Self-Efficacy Scale total scores range from 4 to 20, with higher scores indicating greater self-efficacy and confidence in managing challenges related to infant peanut introduction and feeding.

Caregiver Anxiety Measured by PROMIS Caregiver Anxiety Scale Scores

Caregiver anxiety will be assessed using the Patient-Reported Outcomes Measurement Information System (PROMIS) Caregiver Anxiety Scale, an 8-item caregiver-reported measure. Total scores range from 8 to 40, with higher scores indicating greater anxiety and more severe anxiety symptoms. Scores will be summarized and compared across study assessment time points.