RESUMEN
Barker recently hypothesized that factors affecting prenatal and infant growth are related to adult blood pressure and CVD mortality. Predictions from Barker's hypothesis in regard to infant feeding were tested among a sample of 3 or 4 year old children. The relationship of infant-feeding characteristics (duration of breast-feeding, times of introduction of high fat, high carbohydrate, high potassium foods and table salt) to indicators of cardiovascular functioning (resting blood pressures and heart rates, and heart rate response to graded activity) while controlling for anthropometric (height, sum of seven skinfolds, BMI) and demographic (ethnicity, gender, social status) characteristics revealed that infant-feeding practices were not related to CV functioning in the predicted directions among this sample of 3 or 4 year old children. Furthermore, the positive relationship between height and systolic blood pressure was inconsistent with the Barker hypothesis.
Asunto(s)
Estatura , Fenómenos Fisiológicos Cardiovasculares , Fenómenos Fisiológicos Nutricionales del Lactante , Negro o Afroamericano , Presión Sanguínea , Composición Corporal , Lactancia Materna , Preescolar , Femenino , Hemodinámica , Humanos , Lactante , Recién Nacido , Masculino , Americanos Mexicanos , Pronóstico , Texas , Población BlancaRESUMEN
We assessed the effects of socioeconomic status and amount of time mother and child were together during the day on the accuracy of the mother's 24-hour recall report of her 3- or 4-year-old child's dietary intake. Accuracy of the mother's report was compared for nutrients and foods with dietary intake recorded by an observer. Neither socioeconomic status nor amount of time mother and child were together were related to any of the nutrient indicators of accuracy. Although socioeconomic status and amount of time mother and child were together were not related to the indicators of food accuracy, only 64.8% agreement was obtained between mothers and observers on foods consumed. Mothers were more likely to underreport (17.7%) than overreport (10.4%) foods. The low mean difference scores for nutrient indicators supported the use of the 24-hour recall method when collecting group data. The substantial disagreement on foods, however, suggests that previous studies assessing agreement on nutrients have overestimated the accuracy of the 24-hour recall method.