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  • Title: Weight requirements for catch-up growth in girls with eating disorders and onset of weight loss before menarche.
    Author: Swenne I.
    Journal: Int J Eat Disord; 2005 Dec; 38(4):340-5. PubMed ID: 16231359.
    Abstract:
    OBJECTIVE: The current study investigated catch-up in stature in girls with eating disorders and onset of weight loss and stunting of growth before menarche. METHOD: Forty-six girls were followed with measurements of weight and stature for 2-5 years after presentation. RESULTS: At presentation, the girls were stunted by 0.48 +/- 0.57 standard deviation scores (SDS) for height compared with their prepubertal growth track. Maximal stunting of 0.72 +/- 0.68 SDS was reached after 1 year of treatment despite weight gain. Catch-up growth, that is, increase in height SDS, was achieved during the second to fourth years. Thirty-four girls who reached menarche had normalized weight and reached their prepubertal growth track. In a regression analysis, growth in stature during a year of treatment could be predicted to 50% by age, the weight gain that year, the weight gain the preceding year, and by the weight level at the start of the year. Catch-up growth during a year could be predicted to 26% by the weight gain that year and the weight gain the preceding year. CONCLUSION: Catch-up growth is possible in girls with eating disorders of premenarcheal onset. Weight gain is necessary for catch-up growth and must start before the ability to grow is lost with age. Once weight gain starts, the full effect on growth in stature takes several years to evolve.
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