<p><strong>BACKGROUND: </strong>Social media is a common way for mothers to seek advice about their infants. However, little is known about how low-income urban mothers use social media to obtain infant health information and whether this information is consistent with expert pediatric recommendations.</p>

<p><strong>OBJECTIVES: </strong>(1) identify the types of health questions asked by low-income mothers of infants in a social media parenting group; (2) describe whether peer answers are consistent with or contradict AAP guidelines; (3) identify the practices that mothers post about that are inconsistent with AAP guidelines.</p>

<p><strong>METHODS: </strong>Forty-three low-income mothers were enrolled in Grow2Gether, a private Facebook group intervention focused on infant care and moderated by a psychologist. All health questions posted by mothers were coded thematically; answers to questions from the group were assessed for consistency with American Academy of Pediatrics (AAP) guidelines related to infant feeding, sleep, screen time, and safety. Additionally, all unique posts that contained practices inconsistent with these AAP guidelines were thematically coded.</p>

<p><strong>RESULTS: </strong>In total, 215 posts were coded. Participants posted 61 questions related to infant health, most commonly solid food introduction (8/61), teething (8/61), and breastfeeding (7/61). Of the 77 answers given by peers, 6 contradicted guidelines. Separately, mothers had 73 posts demonstrating practices inconsistent with AAP guidelines [safe sleep (43/73) and screen time (21/73)].</p>

<p><strong>CONCLUSIONS: </strong>Mothers' Facebook group interactions in the context of an infant care intervention revealed that when mothers posed direct questions regarding infant health, their peers generally gave answers that did not contradict AAP guidelines. In contrast, mothers' posts simply describing sleep and screen time practices commonly contradicted guidelines.</p>

<p><strong>BACKGROUND: </strong>Few studies have addressed obesity prevention among low-income families whose infants are at increased obesity risk. We tested a Facebook peer-group intervention for low-income mothers to foster behaviors promoting healthy infant growth.</p>

<p><strong>METHODS: </strong>In this randomized controlled trial, 87 pregnant women (Medicaid insured, BMI ≥25 kg/m(2)) were randomized to the Grow2Gether intervention or text message appointment reminders. Grow2Gether participants joined a private Facebook group of 9-13 women from 2 months before delivery until infant age 9 months. A psychologist facilitated groups featuring a curriculum of weekly videos addressing feeding, sleep, parenting, and maternal well-being. Feasibility was assessed using the frequency and content of participation, and acceptability using surveys. Maternal beliefs and behaviors and infant growth were assessed at birth, 2, 4, 6, and 9 months. Differences in infant growth between study arms were explored. We conducted intention-to-treat analyses using quasi-least-squares regression.</p>

<p><strong>RESULTS: </strong>Eighty-eight percent (75/85) of intervention participants (42% (36/85) food insecure, 88% (75/85) black) reported the group was helpful. Participants posted 30 times/group/week on average. At 9 months, the intervention group had significant improvement in feeding behaviors (Infant Feeding Style Questionnaire) compared to the control group (p = 0.01, effect size = 0.45). Intervention group mothers were significantly less likely to pressure infants to finish food and, at age 6 months, give cereal in the bottle. Differences were not observed for other outcomes, including maternal feeding beliefs or infant weight-for-length.</p>

<p><strong>CONCLUSIONS: </strong>A social media peer-group intervention was engaging and significantly impacted certain feeding behaviors in families with infants at high risk of obesity.</p>

<p><strong>BACKGROUND: </strong>Evidence increasingly indicates that childhood obesity prevention efforts should begin as early as infancy. However, few interventions meet the needs of families whose infants are at increased obesity risk due to factors including income and maternal body mass index (BMI). Social media peer groups may offer a promising new way to provide these families with the knowledge, strategies, and support they need to adopt obesity prevention behaviors.</p>

<p><strong>OBJECTIVE: </strong>The aim of this study is to develop and pilot test a Facebook-based peer group intervention for mothers, designed to prevent pediatric obesity and promote health beginning in infancy.</p>

<p><strong>METHODS: </strong>We conducted in-depth semi-structured interviews with 29 mothers of infants and focus groups with 30 pediatric clinicians, to inform the development of a theory-based intervention. We then conducted a single-group pilot trial with 8 mothers to assess its feasibility and acceptability. All participants were recruited offline at pediatric primary care practices. Participants in the pilot trial joined a private Facebook group, moderated by a psychologist, with a weekly video-based curriculum, and also had the option to meet at a face-to-face event. Within the Facebook group, mothers were encouraged to chat, ask questions, and share photos and videos of themselves and babies practicing healthy behaviors. Consistent with the literature on obesity prevention, the curriculum addressed infant feeding, sleep, activity, and maternal well-being. Feasibility was assessed using the frequency and content of group participation by mothers, and acceptability was measured using online surveys and phone interviews.</p>

<p><strong>RESULTS: </strong>Based on preferences of mothers interviewed (mean BMI 35 kg/m(2), all Medicaid-insured, mean age 27, all Black), we designed the intervention to include frequent posts with new information, videos showing parents of infants demonstrating healthy behaviors, and an optional face-to-face meeting. We developed a privacy and safety plan that met the needs of participants as well as the requirements of the local institutional review board (IRB), which included use of a "secret" group and frequent screening of participant posts. Clinicians, 97% (29/30) women and 87% (26/30) pediatricians, preferred no direct involvement in the intervention, but were supportive of their patients' participation. In our 8-week, single group pilot trial, all participants (mean BMI 35 kg/m(2), all Medicaid-insured, mean age 28, all Black) viewed every weekly video post, and interacted frequently, with a weekly average of 4.4 posts/comments from each participant. All participant posts were related to parenting topics. Participants initiated conversations about behaviors related to healthy infant growth including solid food introduction, feeding volume, and managing stress. All 8 pilot group participants reported that they found the group helpful and would recommend it to others.</p>

<p><strong>CONCLUSIONS: </strong>Our methodology was feasible and acceptable to low-income mothers of infants at high risk of obesity, and could be adapted to implement peer groups through social media for underserved populations in varied settings.</p>

<p><strong>CLINICALTRIAL: </strong>ClinicalTrials.gov NCT01977105; https://clinicaltrials.gov/ct2/show/NCT01977105 (Archived by WebCite at http://www.webcitation.org/6iMFfOBat).</p>

<p><strong>INTRODUCTION: </strong>Despite many recommended strategies for obesity prevention during infancy, effectively delivering recommendations to parents in clinical settings is challenging, especially among high-risk populations. This study describes and compares mothers' and clinicians' priorities for obesity prevention during infancy, to facilitate more-effective obesity prevention messaging.</p>

<p><strong>METHODS: </strong>A discrete choice experiment using maximum difference scaling was administered in 2013 and analyzed in 2013-2014. Twenty-nine low-income, obese mothers of infants and 30 pediatric clinicians from three urban primary care practices rated the relative importance of 16 items relevant to obesity prevention during infancy, in response to this question: Which topic would be most helpful [for new mothers] to learn about to prevent your [their] child from becoming overweight? Response options encompassed the domains of feeding, sleep, parenting (including physical activity and screen time), and maternal self-care.</p>

<p><strong>RESULTS: </strong>Mothers (all Medicaid-enrolled and black; mean age, 27 years; mean BMI, 35 kg/m(2)) and clinicians (97% female, 87% pediatricians, 13% nurse practitioners) both highly prioritized recognizing infant satiety and hunger cues, and appropriate feeding volume. Mothers rated infant physical activity and maintaining regular routines as 3.5 times more important than clinicians did (p&lt;0.001). Clinicians rated breastfeeding as 3.4 times more important than mothers did (p&lt;0.001). Neither group prioritized learning about screen time or maternal self-care.</p>

<p><strong>CONCLUSIONS: </strong>Low-income, obese, black mothers of infants highly prioritized learning about many effective obesity prevention strategies, including recognizing hunger and satiety cues, promoting infant activity, and maintaining regular routines. Clinicians may frame preventive guidance to be responsive to these priorities.</p>