Anthropometry of Mexican-American migrant children in northern California

Insights

Mexican-American children in California showed adequate growth, with improved nutrition during their US stay. Most children had healthy hematocrit levels, contrasting with previous studies.

Area of Science:

  • Pediatric Nutrition
  • Growth Monitoring
  • Migrant Health

Background:

  • Previous studies indicated potential growth deficits in Mexican-American children.
  • Understanding the nutritional status and growth patterns of migrant children is crucial.

Purpose of the Study:

  • To assess the anthropometric data and hematocrit levels of Mexican-American migrant children.
  • To compare growth percentiles with national standards and previous research.

Main Methods:

  • Collected anthropometric data (weight-for-age, height-for-age, weight-for-height) from 209 children aged 0-7 years.
  • Measured hematocrit levels in 170 children.
  • Analyzed growth percentiles and their relationship with age and seasonal residence.

Main Results:

  • Only 7.6% of children had low hematocrit levels.
  • Growth percentiles approximated National Center for Health Statistics standards.
  • Weight-for-height percentile increased with age, while height-for-age decreased; growth accelerated during US residence.

Conclusions:

  • Mexican-American migrant children in this cohort exhibited adequate growth.
  • Improved nutritional conditions in the US may contribute to their adequate growth status.
  • Findings contrast with earlier studies, suggesting potential improvements in migrant child health.

Related Concept Videos

Nature and Nurture01:10

Nature and Nurture

Many human characteristics, like height, are shaped by both nature—in other words, by our genes—and by nurture, or our environment. For example, chronic stress during childhood inhibits the production of growth hormones and consequently reduces bone growth and height. Scientists estimate that 70-90% of variation in height is due to genetic differences among individuals, and 10-30% of variation in height is due to differences in the environments that individuals experience, such as differences...
Migration00:53

Migration

Migration is long-range, seasonal movement from one region or habitat to another. This common strategy, carried out by many different organisms around the world, is an adaptive response that typically corresponds to changes in an organism’s environment, like resource availability or climate. Migrations can involve huge groups of thousands of animals as well as single individuals traveling alone and can range from thousands of kilometers to just a few hundred meters.
Variation: Normal Distribution, Range, and Standard Deviation02:32

Variation: Normal Distribution, Range, and Standard Deviation

In the field of psychology, there are several ways to organize measurements of a trait, feature, or characteristic (i.e., variables). Qualitative data, such as ethnicity, can be tabulated into a frequency count to provide information about the proportion, as well as the variety of groups in a sample or population. On the other hand, researchers can perform a wider set of calculations on quantitative data. The mean, mode, and median, for instance, are central tendency measures to identify a...
One-Way ANOVA: Unequal Sample Sizes01:15

One-Way ANOVA: Unequal Sample Sizes

One-way ANOVA can be performed on three or more samples of unequal sizes. However, calculations get complicated when sample sizes are not always the same. So, while performing ANOVA with unequal samples size, the following equation is used: