INCOMPLETE CATCH-UP GROWTH IN LOW-BIRTH-WEIGHT CHINESE INFANTS IN HONG-KONG

Objective: To describe the early catch-up growth in length in Chinese low birthweight (< 2500 g) infants. Methodology: The infants (n = 181) were delivered between 1988 and 1993 and followed up at Queen Mary an d Tsan Yuk Hospitals, Hong Kong. One third had a birthweight below -2S DS, most of whom were term or close-to-term babies small-for-gestation al-age (SGA). The remaining babies were appropriate-for-gestational-ag e (AGA) in birthweight, but frequently born prematurely. Results: The SGA group did not show a catch-up growth in height comparable to that reported on other recent studies, as 33-35% of the patients were still short at 6 and 12 months (7-12% for the AGA group). When comparing th e postnatal mean growth curve of the SGA group with the mean curve of the AGA group there was little sign of catch-up growth. Conclusions: T he results showed that Hong Kong SGA infants have an incomplete catch- up growth and for successful intervention the causative mechanisms hav e to be identified.