Family and early life factors associated with changes in overweight status between ages 5 and 14: findings from the Mater University Study of Pregnancy and its outcomes

AA Mamun, DA Lawlor, MJ O'Callaghan, GM Williams, JM Najman

Research output: Contribution to journalArticle (Academic Journal)peer-review

67 Citations (Scopus)

Abstract

OBJECTIVE: To describe different patterns of overweight status between ages 5 and 14 y and examine the role of modifiable family and early life characteristics in explaining different patterns of change between these two ages. DESIGN: A population-based prospective birth cohort. SUBJECTS: A total of 2934 children (52% males) who were participants in the Mater-University study of pregnancy, Brisbane, and who were examined at ages 5 and 14 y. MAIN OUTCOME MEASURES: Four patterns of change in overweight/obesity status between ages 5 and 14 y: (i) normal at both ages; (ii) normal at 5 y and overweight/obese at 14 y; (iii) overweight/obese at 5 y and normal at 14 y; (iv) overweight/obese at both ages. RESULTS: Of the 2934 participants, 2018 (68.8%) had a normal body mass index (BMI) at ages 5 and 14 y, 425 (14.5%) changed from a normal BMI at age 5 y to overweight or obese at age 14 y, 175 (6.0%) changed from being overweight or obese at age 5 y to normal weight at age 14 y and 316 (10.8%) were overweight or obese at both ages 5 and 14 y. Girls were more likely to make the transition from overweight or obese at age 5 y to normal at 14 y than their boy counterparts. Children whose parents were overweight or obese were more likely to change from having a normal BMI at age 5 y to being overweight at 14 y (fully adjusted RR: 6.17 (95% CI: 3.97, 9.59)) and were more likely to be overweight at both ages (7.44 (95% CI: 4.60, 12.02)). Birth weight and increase in weight over the first 6 months of life were both positively associated with being overweight at both ages. Other explanatory factors were not associated with the different overweight status transitions. CONCLUSIONS: Parental overweight status is an important determinant of whether a child is overweight at either stage or changes from being not overweight at 5 y to becoming so at 14 y.
Translated title of the contributionFamily and early life factors associated with changes in overweight status between ages 5 and 14: findings from the Mater University Study of Pregnancy and its outcomes
Original languageEnglish
Pages (from-to)475 - 482
Number of pages8
JournalInternational Journal of Obesity
Volume29
DOIs
Publication statusPublished - Mar 2005

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