Fetal growth restriction: relation to growth and obesity at the age of 9 years
- Supratik Chakraborty1,
- Desaline Veronica Joseph1,
- Michael John Gordon Bankart1,
- Stewart A Petersen2,
- Michael P Wailoo3
- 1Department of Health Sciences, University of Leicester, Leicester, UK
- 2Department of Medical Education, University of Leicester, Leicester, UK
- 3Department of Health Sciences, University of Leicester, Leicester, UK
- Dr Michael P Wailoo, Senior Lecturer in Child Health, Robert Kilpatrick Clinical Sciences Building, University of Leicester, PO Box: 65, Leicester LE2 7LX, UK;
- Accepted 6 February 2007
- Published Online First 14 February 2007
Objective: To assess growth patterns of 9-year-old children, some of whom had intrauterine growth restriction (IUGR).
Method: 75 9-year-old children (41 were IUGR infants) were weighed and measured at birth, at 1 year, at 2 years and at 9 years of age. Using general linear models for continuous data, changes in weight z scores were used to quantify growth rate between birth and 9 years of age.
Results: IUGR children were smaller at birth (weight z score –2.1 v 0.2 in normal children; p<0.001) but showed a greater increase in their weight between birth and 9 years (change of weight z score 1.5 v 0.4 in normal children; p = 0.001). At the age of 9 years the weight, height and body mass index (BMI) z scores were lower in IUGR children than the control children (weight z score –0.4 v 0.6, respectively; p<0.001, height z score –0.5 v 0, respectively; p = 0.002, BMI z score −0.2 v 0.7, respectively; p = 0.002). The predictors of these differences were IUGR, birth weight and maternal and paternal heights.
Conclusion: IUGR infants grow faster but remain shorter and lighter than their normal counterparts—that is, they fail to fully catch up by 9 years of age.
This study was supported by a grant from Leicestershire, Northamptonshire and Rutland Primary Care Research Alliance.
Competing interests: None.
- body mass index
- intrauterine growth restriction