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Estimating secular changes in longitudinal growth patterns underlying adult height with the QEPS model: the Grow Up Gothenburg cohorts
Background Over the past 150 years, humans have become taller, and puberty has begun earlier. It is unclear if these changes are continuing in Sweden, and how longitudinal growth patterns are involved. We aimed to evaluate the underlying changes in growth patterns from birth to adulthood by QEPS est...
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Published in: | Pediatric research 2018-07, Vol.84 (1), p.41-49 |
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Main Authors: | , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Background
Over the past 150 years, humans have become taller, and puberty has begun earlier. It is unclear if these changes are continuing in Sweden, and how longitudinal growth patterns are involved. We aimed to evaluate the underlying changes in growth patterns from birth to adulthood by QEPS estimates in two Swedish cohorts born in 1974 and 1990.
Methods
Growth characteristics of the longitudinal 1974 and 1990-birth cohorts (
n
= 4181) were compared using the QEPS model together with adult heights.
Results
There was more rapid fetal/infancy growth in girls/boys born in 1990 compared to 1974, as shown by a faster
Etimescale
and they were heavier at birth. The laterborn were taller also in childhood as shown by a higher
Q
-function. Girls born in 1990 had earlier and more pronounced growth during puberty than girls born in 1974. Individuals in the 1990 cohort attained greater adult heights than those in the 1974 cohort; 6 mm taller for females and 10 mm for males.
Conclusion
A positive change in adult height was attributed to more growth during childhood in both sexes and during puberty for girls. The QEPS model proved to be effective detecting small changes of growth patterns, between two longitudinal growth cohorts born only 16 years apart. |
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ISSN: | 0031-3998 1530-0447 |
DOI: | 10.1038/s41390-018-0014-z |