CORRELATES OF PRETERM AND TERM INFANT FEEDING OUTCOMES

描述：（改编自申请人摘要）拟定研究：（a） 描述、比较和对比喂养结果（饮食摄入量， 体细胞生长和发育状态）的两组婴儿（非常 低出生体重、早产儿，有肺部疾病史， 健康的足月婴儿）至足月后第一年;和（B） 研究了母亲和婴儿喂养行为对这些 结果。 对于四个研究时间中的每一个，检查以下各项之间的关系： (1)母亲特征（年龄、婚姻状况、教育、养育 压力和抑郁症状）和婴儿特征（ 出生-胎龄、呼吸状态和体重） 喂养行为;（2）婴儿特征，母婴 喂养行为和喂养结果。 随着时间的推移关系的变化 研究，两组婴儿之间的差异， 关系将被探索。 纵向研究使用重复的 措施设计 数据是在一、四、五、六、七、八 8个月和12个月后。 便利样本包括50-60 两组中的母亲和她们的婴儿。 母亲教养 压力与阿比丁的父母压力指数进行检查，抑郁 用CES-D量表测量症状。 婴儿的呼吸道 使用计算机化系统评估新生儿期的状况 由Farrell和Palta开发，在四个研究时间中的每一个时间， 观察呼吸努力、脉搏血氧饱和度和母亲报告 补充氧气需求。 母婴喂养行为将 用亲子早期观察者评定量表进行检查 关系评估。 膳食摄入量以卡路里/千克为单位 和g蛋白质/kg体重。 体重增长率是衡量体重增长率的标准 增重/天（g）和长度/天（mm）的生长。 发展现状是 在12个月时使用贝利婴儿精神和运动量表进行评估 在8个月和12个月时， 信息处理能力（视觉注意力）。 多元 方差分析（MANOVA）用于重复测量的研究。 将使用多项式回归研究体重增长率， 时间的长度。 自变量集的多元回归 将被用来检查变量之间的关系。 的影响 时间依赖性协变量（父母压力，抑郁症状， 婴儿呼吸状态和体重）用准似然估计 模型 变量之间的假设关系将通过 一般线性多变量模型 特定群体的估计数 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