Twin-singleton influence on infant development: A national birth cohort study

F. W. Lung, Bih Ching Shu, T. L. Chiang, S. J. Lin

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Background: While studying the development of twins, gestational age and birthweight were suggested as two of the major mediators to be considered. In addition, maternal age, maternal education, parental income and assisted reproductive technologies (ART) also should be considered as moderators. Thus the purpose of this study was to investigate the mediators and moderators of twin and singleton development. Methods: Being a national birth cohort study, 21648 infants were randomly selected and developmental measures were assessed at 6 and 18 months post partum. Children's development at 6 and 18 months were measured using the high reliable Taiwan Birth Cohort Study instrument, which measures children's development in four domains of gross motor, fine motor, language and social development. Additionally, maternal sociodemographics including maternal age, maternal education and parental income; children's characteristics including gender, birthweight, gestational age, single or multiple births, ART or natural conception information were also collected. These data were analysed using a three-step multiple linear regression analysis and further validated using structural equation modelling. Results: Parental sociodemographics, children characteristics and being twin all had effect on children's development. Additionally, ART and twin were mediators between maternal age and children's development. Mothers aged over 40 were more likely to choose ART, thus increases their likelihood of having twins. Additionally, mothers aged over 40 were more likely to give birth to premature or low-birthweight babies, regardless if they were twin or not. Twins had a higher prevalence of prematurity or low birthweight, which also affected their development in all four domains at 6 and 18 months. Thus prematurity and low birthweight were mediating factors between twin and children's development; with these two mediating factors controlled, there were no difference between twin and singleton development. Conclusions: The conceptual construct of structural equation modelling showed these factors interacted and influenced children's development through multiple pathways. Medical intervention may facilitate children's development through prenatal growth and premature care.

Original languageEnglish
Pages (from-to)409-418
Number of pages10
JournalChild: Care, Health and Development
Volume35
Issue number3
DOIs
Publication statusPublished - 2009 Apr 23

Fingerprint

Child Development
Cohort Studies
Parturition
Assisted Reproductive Techniques
Mothers
Maternal Age
Gestational Age
Multiple Birth Offspring
Education
Language Development
Premature Birth
Taiwan
Linear Models
Regression Analysis
Growth

All Science Journal Classification (ASJC) codes

  • Pediatrics, Perinatology, and Child Health
  • Developmental and Educational Psychology
  • Public Health, Environmental and Occupational Health

Cite this

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title = "Twin-singleton influence on infant development: A national birth cohort study",
abstract = "Background: While studying the development of twins, gestational age and birthweight were suggested as two of the major mediators to be considered. In addition, maternal age, maternal education, parental income and assisted reproductive technologies (ART) also should be considered as moderators. Thus the purpose of this study was to investigate the mediators and moderators of twin and singleton development. Methods: Being a national birth cohort study, 21648 infants were randomly selected and developmental measures were assessed at 6 and 18 months post partum. Children's development at 6 and 18 months were measured using the high reliable Taiwan Birth Cohort Study instrument, which measures children's development in four domains of gross motor, fine motor, language and social development. Additionally, maternal sociodemographics including maternal age, maternal education and parental income; children's characteristics including gender, birthweight, gestational age, single or multiple births, ART or natural conception information were also collected. These data were analysed using a three-step multiple linear regression analysis and further validated using structural equation modelling. Results: Parental sociodemographics, children characteristics and being twin all had effect on children's development. Additionally, ART and twin were mediators between maternal age and children's development. Mothers aged over 40 were more likely to choose ART, thus increases their likelihood of having twins. Additionally, mothers aged over 40 were more likely to give birth to premature or low-birthweight babies, regardless if they were twin or not. Twins had a higher prevalence of prematurity or low birthweight, which also affected their development in all four domains at 6 and 18 months. Thus prematurity and low birthweight were mediating factors between twin and children's development; with these two mediating factors controlled, there were no difference between twin and singleton development. Conclusions: The conceptual construct of structural equation modelling showed these factors interacted and influenced children's development through multiple pathways. Medical intervention may facilitate children's development through prenatal growth and premature care.",
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Twin-singleton influence on infant development : A national birth cohort study. / Lung, F. W.; Shu, Bih Ching; Chiang, T. L.; Lin, S. J.

In: Child: Care, Health and Development, Vol. 35, No. 3, 23.04.2009, p. 409-418.

Research output: Contribution to journalArticle

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T1 - Twin-singleton influence on infant development

T2 - A national birth cohort study

AU - Lung, F. W.

AU - Shu, Bih Ching

AU - Chiang, T. L.

AU - Lin, S. J.

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