American Journal of Clinical Nutrition, Vol 60, 930-935, Copyright © 1994 by The American Society for Clinical Nutrition, Inc

ORIGINAL RESEARCH COMMUNICATIONS

Premature infants require additional folate and vitamin B-12 to reduce the severity of the anemia of prematurity

DA Worthington-White, M Behnke and S Gross
Department of Pediatrics, University of Florida College of Medicine, Gainesville 32610.

One hundred eighty-four premature infants, < 1800 g at birth and < 36 wk gestation, were entered into a study investigating the role of additional folate and vitamin B-12 supplementation of the anemia of prematurity. All patients initially received vitamin E and iron in accordance with accepted standards. Patients were randomly assigned to four groups to receive orally 0.1 mg folate/d for 4 mo, 100 micrograms vitamin B-12 intramuscularly monthly for 4 mo, both supplements, or neither. All other activities including parenteral nutrition were carried out according to established practices, irrespective of study group. By 10-12 wk, infants treated with vitamin B-12 alone or combined with folate had higher hemoglobin values than the untreated (P < 0.0005) or solely folate-treated (P < 0.01) groups. These findings held true irrespective of wide variations in treatment and feeding practices. The only uncontrolled hematologic nutritional factor, selenium, showed a similar pattern of decline for 10-12 wk in all study patients, whether or not they received additional vitamin supplements.

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