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Abstract
Aim: To document the growth of Portuguese and Cape Verdean infants living in Greater Lisbon, Portugal according to the WHO 2006 Growth Standard.
Subjects and methods: Mixed effects models were applied to serial weight, length, BMI, head circumference and triceps and subscapular skin-fold thickness data from 263 infants (134 Portuguese, 129 Cape Verdean) aged 0.01–1.08 years. Models tested systematic differences between ethnic groups. Individual monthly estimates were converted to Z-scores and plotted.
Results: There was no significant difference in growth curves between ethnic groups, except for subscapular skin-fold growth in girls; at 1 year of age Cape Verdeans had a 1 mm advantage. Despite growth in BMI against the WHO standard being characterized by apparent accelerated growth and final Z-scores close to the 75th centile, triceps Z-scores were consistently low and subscapular Z-scores roughly approximated the 50th centile after age 7 months.
Conclusion: Cape Verdean infants may develop higher levels of adiposity than Portuguese infants for the same BMI, a phenomenon common in children from developing nations. Because infants had high BMI but low skin-fold values against the WHO standard, research is needed to understand how change over age in BMI according to the WHO standard reflects changes in body composition.
Declaration of interest: The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper