Zygosity Differences in Height and Body Mass Index of Twins From Infancy to Old Age: A Study of the CODATwins Project.
نویسندگان
چکیده
A trend toward greater body size in dizygotic (DZ) than in monozygotic (MZ) twins has been suggested by some but not all studies, and this difference may also vary by age. We analyzed zygosity differences in mean values and variances of height and body mass index (BMI) among male and female twins from infancy to old age. Data were derived from an international database of 54 twin cohorts participating in the COllaborative project of Development of Anthropometrical measures in Twins (CODATwins), and included 842,951 height and BMI measurements from twins aged 1 to 102 years. The results showed that DZ twins were consistently taller than MZ twins, with differences of up to 2.0 cm in childhood and adolescence and up to 0.9 cm in adulthood. Similarly, a greater mean BMI of up to 0.3 kg/m2 in childhood and adolescence and up to 0.2 kg/m2 in adulthood was observed in DZ twins, although the pattern was less consistent. DZ twins presented up to 1.7% greater height and 1.9% greater BMI than MZ twins; these percentage differences were largest in middle and late childhood and decreased with age in both sexes. The variance of height was similar in MZ and DZ twins at most ages. In contrast, the variance of BMI was significantly higher in DZ than in MZ twins, particularly in childhood. In conclusion, DZ twins were generally taller and had greater BMI than MZ twins, but the differences decreased with age in both sexes.
منابع مشابه
Twin's Birth-Order Differences in Height and Body Mass Index From Birth to Old Age: A Pooled Study of 26 Twin Cohorts Participating in the CODATwins Project.
We analyzed birth order differences in means and variances of height and body mass index (BMI) in monozygotic (MZ) and dizygotic (DZ) twins from infancy to old age. The data were derived from the international CODATwins database. The total number of height and BMI measures from 0.5 to 79.5 years of age was 397,466. As expected, first-born twins had greater birth weight than second-born twins. W...
متن کاملبررسی نرم قد، وزن و نمایه توده بدنی ( BMI) در کودکان 11-6 سال شهر یزد در سال 90-1389
Introduction: Evaluation of grow this particularly important in children. It has to use the standard data necessarily. Due to genetic difference sand patterns of people living in different areas, national or local needs are better to be considered rather than the international ones. The aim of this study was to determine the height, weight and BMI of the children6-11 years old in the city of Ya...
متن کاملتعیین نورموگرام شاخص توده بدنی در کودکان 7-12 ساله شهر بیرجند و مقایسه آن با منحنی های مرجع مرکز کنترل بیماریها
Background and Aim: Body mass index (BMI) is the most useful index used to screen children obesity. Since height and weight are determined by genetic, racial and environmental factors, body mass index can differ from one population to another. The aim of this study was to prepare the normogram of (7-120year old) children body mass index (BMI) in Birjand and to compare it with that of with the c...
متن کاملبررﺳﻲ نقاط برش ﻗﺪ، وزن و ﻧﻤﺎﻳﻪ ﺗﻮده ﺑﺪﻧﻲ درﻛﻮدﻛﺎن 6 تا 11 ﺳﺎل ﺷﻬﺮ ﻳﺰد درسال 95-1394
Introduction: One of the applicable methods in determination of nutritional status and health is surveillance and assessment of physical growth. The attention to growth of children can be determined failure to thrive and malnutrition in primary period of life. The aim of this study was to determine of cut off the height, weight and BMI of the children6-11 year-old in the city of Yazd, Iran and...
متن کاملBody size of twins compared with siblings and the general population: from birth to late adolescence.
OBJECTIVES We examined whether and when differences in body size disappear over time and whether twins attain normal final height and body mass index (BMI). STUDY DESIGN Height, weight, and BMI data of twins at ages 1, 4, and 18 years were compared with data from their nontwin siblings. Second, twin and sibling data were compared with population standards. In addition to height, weight, and B...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Twin research and human genetics : the official journal of the International Society for Twin Studies
دوره 18 5 شماره
صفحات -
تاریخ انتشار 2015