CORRELATES OF PRETERM AND TERM INFANT FEEDING OUTCOMES

描述：(改编自申请人的摘要)建议的研究：(A) 描述、比较和对比喂养结果(饮食摄入量、 两组婴儿的体格生长和发育状况) 低出生体重，有肺部问题和早产儿病史 健康的足月儿)通过第一年后足月；和(B) 研究了母婴喂养行为对这些指标的影响 结果。对于四次学习时间中的每一次，都会检查以下各项之间的关系： (1)母亲特征(年龄、婚姻状况、教育程度、育儿方式 压力、抑郁症状)和婴儿特征(成熟时 出生-胎龄、呼吸状况和体重)与母亲 喂养行为；和(2)婴儿特征、母亲和婴儿 摄食行为和摄食结果。随着时间的推移关系的变化 以及两组婴儿之间的差异 我们还将探讨他们之间的关系。纵向研究使用了重复的 措施设计。数据是在1点、4点、4点、 学期结束后8个月和12个月。方便型样本包括50-60 两组中每组的母亲及其婴儿。母亲的教养 压力是用阿比丁的父母压力指数来检测的，而抑郁 症状用CES-D量表测量。婴儿的呼吸系统 使用计算机化系统评估新生儿期的状况 由Farrell和Palta开发，并在四个学习时间中的每一个 呼吸努力、脉搏血氧饱和度观察及母婴报告 补充需氧量。母婴喂养行为会 早期使用亲子观察者评定量表进行检查 关系评估。膳食摄入量是以卡路里/公斤为单位来衡量的。 G蛋白质/kg体重。体细胞生长是用体重的速率来衡量的。 日增重(G)和长度/日增重(Mm)。发展状况是 12个月时用贝利婴幼儿心理和运动量表进行评估 发展，8个月和12个月，测量 信息处理能力(视觉注意力)。多变量 方差分析(MANOVA)用于研究重复测量。 将使用多项式回归来研究体重和 随着时间的推移而变长。自变量集的多元回归 将用于检查变量之间的关系。的影响 随时间变化的协变量(育儿压力、抑郁症状和 婴儿呼吸状态和体重)用准似然估计 模特。变量之间的假设关系将通过以下方式进行检验 一般线性多变量模型。对特定群体的估计 标准化回归

DESCRIPTION: (Adapted from applicant's abstract) The proposed study: (a) describes, compares, and contrasts feeding outcomes (dietary intake, somatic growth, and developmental status) for two groups of infants (very low birthweight, preterm infants with a history of pulmonary problems and healthy fullterm infants) through the first year post term; and (b) examines the effect of maternal and infant feeding behavior on these outcomes. For each of four study times, relationships are examined among: (1) maternal characteristics (age, marital status, education, parenting stress, and depressive symptoms) and infant characteristics (maturity at birth-gestational age, respiratory status, and weight) with maternal feeding behavior; and (2) infant characteristics, maternal and infant feeding behavior, and feeding outcomes. Change in relationships over time is examined, and differences between the two groups of infants in relationships will be explored. The longitudinal study uses a repeated measures design. Data are collected at home visits made at one, four, eight and twelve months post-term. The convenience sample includes 50-60 mothers and their infants in each of the two groups. Mothers' parenting stress is examined with Abidin's Parenting Stress Index, and depressive symptoms are measured with the CES-D Scale. The infant's respiratory status is assessed in the neonatal period using the computerized system developed by Farrell and Palta and at each of the four study times with observation of respiratory effort, pulse oximetry, and maternal report of supplemental oxygen requirement. Maternal and infant feeding behavior will be examined with the observer rating scales of the Parent-Child Early Relational Assessment. Dietary intake is measured in terms of calories/kg and g protein/kg body weight. Somatic growth is measured by rate of weight gain/day (g) and of growth in length/day (mm). Developmental status is assessed at twelve months with the Bayley Mental and Motor Scales of Infant Development and at eight and twelve months with measures of information-processing competence (visual attention). Multivariate analysis of variance (MANOVA) is used for study of repeated measures. Polynomial regression will be used to study rate of growth in weight and length over time. Multiple regression of sets of independent variables will be used to examine relationships among variables. The effect of time-dependent covariates (parenting stress, depressive symptoms, and infant respiratory status and weight) are estimated with a quasi-likelihood model. Hypothesized relationships among variables will be examined with general linear multivariate models. Estimates of the group specific standardized regression