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- Genre: Masters Thesis
Description
The development of self-regulation is believed to play a crucial role in predicting later psychopathology and is believed to begin in early childhood. The early postpartum period is particularly important in laying the groundwork for later self-regulation as infants' dispositional traits interact with caregivers' co-regulatory behaviors to produce the earliest forms of self-regulation. Moreover, although emerging literature suggests that infants' exposure to maternal stress even before birth may be integral in determining children's self-regulatory capacities, the complex pathways that characterize these developmental processes remain unclear. The current study considers the complex, transactional processes in a high-risk, Mexican American sample. Data were collected from 305 Mexican American infants and their mothers during prenatal, 6- and 12-week home interviews. Mother self-reports of stress were obtained prenatally between 34-37 weeks gestation. Mother reports of infant temperamental negativity and surgency were obtained at 6-weeks as were observed global ratings of maternal sensitivity during a structured peek-a-boo task. Microcoded ratings of infants' engagement orienting and self-comforting behaviors were obtained during the 12-week peek-a-boo task. Study findings suggest that self-comforting and orienting behaviors help to modulate infants' experiences of distress, and also that prenatal stress influences infants' engagement in each of those regulatory behaviors, both directly by influence tendencies to engage in orienting behaviors and indirectly by programming higher levels of infant negativity and surgency, both of which may confer risk for later regulatory disadvantage. Advancing our understandings about the nature of these developmental pathways could have significant implications for targets of early intervention in this high-risk population.
ContributorsLin, Betty (Author) / Crnic, Keith A (Thesis advisor) / Lemery-Chalfant, Kathryn S (Committee member) / Mackinnon, David P (Committee member) / Arizona State University (Publisher)
Created2013
Description
ABSTRACT Research suggests that there are benefits of early intervention and in focusing on mental health for infants and toddlers who have been maltreated. Court Teams for Infants and Toddlers is a model program designed to improve developmental outcomes using a systemic change approach. Multi-system collaboration between the courts, child welfare, health professionals, child advocates, and community partners are promoted to increase awareness and improve outcomes for infants and toddlers who have been removed from their parents. The Court Teams model in Arizona is known as Best for Babies. This study looks at implementation efforts of Best for Babies in two counties, Yavapai and Pima, and the unique perspectives of foster parents and attorneys representing the infants and toddlers while in the foster care system. It is important for purposes of effective program implementation to understand whether the Best for Babies program has impacted how these stakeholders address the unique needs of infants and toddlers. Findings reveal that most foster parents in this study were not familiar with the Best for Babies program; however, many of the comments shared are aligned with the values of the program. For example, all participants commented that collaboration among various stakeholders is necessary. Areas of opportunity were also illustrated in the findings regarding Best for Babies program implementation. For instance, the study found that even those foster parents familiar with the program could not attribute an impact on their care of infants and toddlers specifically to Best for Babies.
ContributorsWhite, Jennifer (Author) / Krysik, Judy (Thesis advisor) / Roe-Sepowitz, Dominique (Committee member) / Ayón, Cecilia (Committee member) / Arizona State University (Publisher)
Created2011
Description
Objective: The Special Supplemental Nutrition Program for Women, Infants and Children (WIC) is a federally-funded program that provides supplemental food packages, nutrition education, and healthcare referrals to low-income women, infants, and children under 5, who are at the highest nutritional risk. This study explores if household WIC participation is associated with healthier dietary behaviors among age-ineligible children (5-18-years-old) in WIC households. Consumption frequency of fruits, vegetables, 100% juice, sugar-sweetened beverages (SSBs), and energy-dense snacks (sweet and salty snacks) among children from WIC and income-qualifying non-WIC households were compared.
Methods: Data were obtained from two cross-sectional panels (2009-10 and 2014) of the New Jersey Child Health Study conducted in four low-income New Jersey cities. Questions from previously validated surveys assessed consumption frequency of fruits, vegetables, SSBs, and sweet and salty snacks. Analyses were confined to 570 children between 5-18 yrs; of which 365 (5-11 yrs: 237, 12-18 yrs: 128) resided in WIC participating households and 205 (5-11 yrs: 138, 12-18 yrs: 67) in income-qualifying non-WIC households. Over half of the sample was African American and 43% were Hispanic. Multivariable analyses were conducted to compute incidence rate ratios (IRRs) using negative binomial regression to compare the differences in eating behaviors of children in WIC vs. Non-WIC households
Results: Household WIC participation was associated with a slightly higher frequency of vegetable consumption among 12-18-year-old children (IRR= 1.25, p=.05); differences were significant among older males (12-18-years-old) (p=.006), and not in females.
Frequency of 100% juice consumption was significantly higher among younger females (5-11-years-old) in WIC households who consumed juice about 44% more frequently (p=.02) compared to similar age girls in non-WIC households. Hispanic children in WIC households reported a lower frequency of SSBs consumption (p=.01); this association was only true among males (p=.02).
Conclusions: Household WIC participation is associated with healthier dietary behaviors among age-ineligible children living in the households, suggesting a positive spillover effect of the program. Proposed changes to WIC packages are likely to have dietary implications not only for WIC participants but also for non-participating children residing in WIC households,
Methods: Data were obtained from two cross-sectional panels (2009-10 and 2014) of the New Jersey Child Health Study conducted in four low-income New Jersey cities. Questions from previously validated surveys assessed consumption frequency of fruits, vegetables, SSBs, and sweet and salty snacks. Analyses were confined to 570 children between 5-18 yrs; of which 365 (5-11 yrs: 237, 12-18 yrs: 128) resided in WIC participating households and 205 (5-11 yrs: 138, 12-18 yrs: 67) in income-qualifying non-WIC households. Over half of the sample was African American and 43% were Hispanic. Multivariable analyses were conducted to compute incidence rate ratios (IRRs) using negative binomial regression to compare the differences in eating behaviors of children in WIC vs. Non-WIC households
Results: Household WIC participation was associated with a slightly higher frequency of vegetable consumption among 12-18-year-old children (IRR= 1.25, p=.05); differences were significant among older males (12-18-years-old) (p=.006), and not in females.
Frequency of 100% juice consumption was significantly higher among younger females (5-11-years-old) in WIC households who consumed juice about 44% more frequently (p=.02) compared to similar age girls in non-WIC households. Hispanic children in WIC households reported a lower frequency of SSBs consumption (p=.01); this association was only true among males (p=.02).
Conclusions: Household WIC participation is associated with healthier dietary behaviors among age-ineligible children living in the households, suggesting a positive spillover effect of the program. Proposed changes to WIC packages are likely to have dietary implications not only for WIC participants but also for non-participating children residing in WIC households,
ContributorsSteeves, Stephanie N (Author) / Ohri-Vachaspati, Punam (Thesis advisor) / Tasevska, Natasha (Committee member) / DeWeese, Robin (Committee member) / Arizona State University (Publisher)
Created2019
Description
Background:The second an individual is born, the gut microbiome starts acquiring unique characteristics, including microbial richness and evenness. In addition, it has been found that during infancy, the mode of delivery, antibiotic exposure, feeding patterns, and environment play a role in such development. However, infancy is still an understudied population related to the gut microbiota, specifically its’ connection to two modifiable factors-sleep-wake patterns and its’ interconnection with feeding practices in the first year of life.
Methods:
This secondary data analysis from a randomized longitudinal intervention study assessed the efficacy of a home-based education program in preventing the onset of childhood obesity. A convenience sample of 40 Hispanic mother and infant dyads were recruited to participate in an additional collection of fecal samples to evaluate associations between lifestyle/behavioral factors in infancy and gut microbiome composition in toddlerhood. Total sleep duration and feeding practices (breastmilk and formula) were assessed at one, six, and twelve months. In addition, alpha and beta diversity metrics were assessed from infant stool samples collected at 36 months.
Results:
This study found some significant and trending values for pairwise comparisons of alpha (Shannon Diversity Index) and beta (Bray Curtis and Jaccard Distance). Sleep-wake adequacy consisted of 14-17 total hours of sleep in 24 hours at one month and 12-16 hours for six and twelve months of age. No significant values were identified at one month of age. However, six and twelve months demonstrated significant observations for gut microbial richness and evenness. Trending differences (p=.06, Shannon Diversity Index) persisted in infants receiving adequate sleep at six months but for different feeding modalities. Faith’s PD, Pielou’s measure, and observed OTUs were three additional alpha-diversity metrics performed in all groups. Observed OTUs (p=.03) and Faith’s PD (p=.03) were significant at twelve months, demonstrating an increased microbial feature in infants receiving adequate sleep.
Conclusion:
The findings from this study may show how different timestamps in the first year of life may create gut microbial milestones. However, the interrelation between sleep-wake patterns, feeding modalities, and gut microbiome development is limited; further investigation is needed to monitor close changes and potentially create a criterion
ContributorsAlanis, Victoria (Author) / Whisner, Corrie M. (Thesis advisor) / Petrov, Megan E. (Committee member) / Bruening, Meg (Committee member) / Arizona State University (Publisher)
Created2022
Description
Infants born before 37 weeks of pregnancy are considered to be preterm. Typically, preterm infants have to be strictly monitored since they are highly susceptible to health problems like hypoxemia (low blood oxygen level), apnea, respiratory issues, cardiac problems, neurological problems as well as an increased chance of long-term health issues such as cerebral palsy, asthma and sudden infant death syndrome. One of the leading health complications in preterm infants is bradycardia - which is defined as the slower than expected heart rate, generally beating lower than 60 beats per minute. Bradycardia is often accompanied by low oxygen levels and can cause additional long term health problems in the premature infant.The implementation of a non-parametric method to predict the onset of brady- cardia is presented. This method assumes no prior knowledge of the data and uses kernel density estimation to predict the future onset of bradycardia events. The data is preprocessed, and then analyzed to detect the peaks in the ECG signals, following which different kernels are implemented to estimate the shared underlying distribu- tion of the data. The performance of the algorithm is evaluated using various metrics and the computational challenges and methods to overcome them are also discussed.
It is observed that the performance of the algorithm with regards to the kernels used are consistent with the theoretical performance of the kernel as presented in a previous work. The theoretical approach has also been automated in this work and the various implementation challenges have been addressed.
It is observed that the performance of the algorithm with regards to the kernels used are consistent with the theoretical performance of the kernel as presented in a previous work. The theoretical approach has also been automated in this work and the various implementation challenges have been addressed.
ContributorsMitra, Sinjini (Author) / Papandreou-Suppappola, Antonia (Thesis advisor) / Moraffah, Bahman (Thesis advisor) / Turaga, Pavan (Committee member) / Arizona State University (Publisher)
Created2020