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Y B Cheung a Division of Clinical Trials and Epidemiological
Sciences, National Cancer Centre, Singapore 169610, b Department of Medical
Oncology, National Cancer Centre, Singapore, c Clinical Trials Centre, University of Hong
Kong, Hong Kong, China, d Clinical Trials Research Unit, University of Sheffield,
Sheffield S5 7AU
Correspondence to: Y B Cheung
ctecyb{at}nccs.com.sg
Objectives:
To test the hypothesis that birth weight
for gestational age and weight gain in early childhood have a long term
association with psychological distress in adults.
What is already known on this topic
Size at birth is also associated with psychological outcomes in
adolescents and young adults What this study adds
The impact of a smaller size at birth may be compensated for by a
higher postnatal weight gain
Design:
Longitudinal study of 1958 birth cohort
followed to age 42 years.
Setting:
Population based birth cohort study.
Participants:
9731 cohort members with valid
perinatal, postnatal, and adult data.
Main outcome measures:
Malaise inventory scores
measured at ages 23, 33, and 42 years. Generalised estimating equations
approach used to analyse repeated measures.
Results:
Psychological distress score was inversely related to birthweight z score and weight gain from birth to the age of
7 years. A unit increase in birthweight z score or childhood weight
gain was associated with a mean reduction in psychological distress
score of 0.10 (95% confidence interval 0.05 to 0.15) and 0.06 (0.02 to
0.10), respectively. Birth weight and weight gain were also inversely
related to the odds of having a high level of psychological distress,
with odds ratios being 0.90 (0.85 to 0.95) and 0.93 (0.89 to 0.98), respectively.
Conclusions:
Psychological health in adults is
related to fetal growth and growth in early childhood.
Psychological outcomes in children are related to fetal growth and
postnatal growth
Both birthweight z score and weight gain in early childhood are
associated with psychological distress at ages 23 to 42
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