LONGITUDINAL ANALYSIS OF ADOLESCENT GROWTH OF LADINO AND MAYAN SCHOOL-CHILDREN IN GUATEMALA - EFFECTS OF ENVIRONMENT AND SEX
LONGITUDINAL ANALYSIS OF ADOLESCENT GROWTH OF LADINO AND MAYAN SCHOOL-CHILDREN IN GUATEMALA - EFFECTS OF ENVIRONMENT AND SEX
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DOI：
10.1002/ajpa.1330890406
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发表时间：
1992-12-01
影响因子：
2.8
通讯作者：
MACVEAN, RB
中科院分区：
文献类型：
--
作者：
BOGIN, B;WALL, M;MACVEAN, RB
对危地马拉儿童的两个样本的身高增长速度和青少年生长事件的时间进行了分析。一份样本包括玛雅学童，其中 33 名男孩和 12 名女孩，年龄在 5.00 岁至 17.99 岁之间，生长和发育的生活条件很差。第二个样本包括拉迪诺儿童，同年龄段的 78 名男孩和 85 名女孩，生活在有利于成长的条件下。 The Preece-Baines model I function is used to estimate mean values for rates and timing of childhood and adolescent growth events for the two groups. Significant statistical contrasts (t-tests) of these means show Mayan boys reach the age of "take-off" (TO; the onset of the adolescent growth spurt) 1.45 years later, achieve peak height velocity (PHV) 1.68 years later, and continue growing for about 2.0 years longer than do the ladino boys.尽管玛雅男孩的生长持续时间更长，但他们的生长速度明显慢于拉迪诺人。玛雅男孩在 TO 岁时比拉迪诺人矮 6.60 厘米，估计在成年时比拉迪诺人矮 7.71 厘米。玛雅女孩的年龄比拉迪纳女孩晚 0.93 岁，但两组的 PHV 年龄或成年年龄没有差异。玛雅女孩在 TO 岁时的平均身高明显低于拉丁女孩（6.5 厘米），并且这种差异在成年后估计会增加到 11.14 厘米。与人类发展的遗传和环境决定因素有关的假设讨论了这些与种族和性别有关的生长量和速度差异的可能原因。
The rate of growth in height and the timing of adolescent growth events are analyzed for two samples of Guatemalan children. One sample includes Mayan school children, 33 boys and 12 girls between the ages of 5.00 to 17.99 years, living under poor conditions for growth and development. The second sample includes ladino children, 78 boys and 85 girls of the same age range, living under favorable conditions for growth. The Preece-Baines model I function is used to estimate mean values for rates and timing of childhood and adolescent growth events for the two groups. Significant statistical contrasts (t-tests) of these means show Mayan boys reach the age of "take-off" (TO; the onset of the adolescent growth spurt) 1.45 years later, achieve peak height velocity (PHV) 1.68 years later, and continue growing for about 2.0 years longer than do the ladino boys. Despite the Mayan boys' increased duration for growth they grow significantly more slowly than the ladinos. Mayan boys are 6.60 cm shorter than ladinos at the age of TO and are estimated to be 7.71 cm shorter than the ladinos at adulthood. Mayan girls reach the age of TO 0.93 years later than do the ladina girls, but the two groups do not differ in the age at PHV or the age at adulthood. The mean height of Mayan girls is significantly less than that of ladinas at the age of TO (6.5 cm), and this difference increases to an estimated 11.14 cm at adulthood. Possible causes of these ethnic and sex-related differences in amounts and rates of growth are discussed in relation to hypotheses about the genetic and environmental determinants of human development.