title: Preschool micronutrient supplementation effects on intellectual and motor function in school-aged Nepalese children.
abstract: OBJECTIVE
  To examine intellectual and motor functioning of children who received micronutrient supplementation from 12 to 35 months of age.
  
  
  METHODS
  Cohort follow-up of children 7 to 9 years of age who participated in a 2 × 2 factorial, placebo-controlled, randomized trial from October 2001 through January 2006.
  
  
  METHODS
  Rural Nepal.
  
  
  METHODS
  A total of 734 children 12 to 35 months of age at supplementation and 7 to 9 years of age at testing.
  
  
  METHODS
  Children received iron plus folic acid (12.5 mg of iron and 50 μg of folic acid); zinc (10 mg); iron plus folic acid and zinc; or placebo.
  
  
  METHODS
  Intellectual, motor, and executive function.
  
  
  RESULTS
  In both the unadjusted and adjusted analyses, iron plus folic acid supplementation had no effect overall or on any individual outcome measures being tested. In the unadjusted analysis, zinc supplementation had an overall effect, although none of the individual test score differences were significant. In the adjusted analysis, the overall difference was not significant.
  
  
  CONCLUSIONS
  In rural Nepal, we found that iron plus folic acid or zinc supplementation during the preschool years had no effect on aspects of intellectual, executive, and motor function at 7 to 9 years of age, suggesting no long-term developmental benefit of iron or zinc supplementation during 12 to 35 months of age.
authors.affiliation: Department of Nutritional Sciences, The Pennsylvania State University, University Park, USA.
authors.forename: Laura E
authors.initials: LE
authors.lastname: Murray-Kolb
authors.forename: Subarna K
authors.initials: SK
authors.lastname: Khatry
authors.forename: Joanne
authors.initials: J
authors.lastname: Katz
authors.forename: Barbara A
authors.initials: BA
authors.lastname: Schaefer
authors.forename: Pamela M
authors.initials: PM
authors.lastname: Cole
authors.forename: Steven C
authors.initials: SC
authors.lastname: LeClerq
authors.forename: Mary E
authors.initials: ME
authors.lastname: Morgan
authors.forename: James M
authors.initials: JM
authors.lastname: Tielsch
authors.forename: Parul
authors.initials: P
authors.lastname: Christian
mesh_terms: D002648:Child; D002675:Child, Preschool; D019587:Dietary Supplements; D004311:Double-Blind Method; D004334:Drug Administration Schedule; D056344:Executive Function / Q000187:drug effects; D005260:Female; D005492:Folic Acid / Q000008:administration & dosage / Q000494:pharmacology*; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D007360:Intelligence / Q000187:drug effects*; D007501:Iron / Q000008:administration & dosage / Q000494:pharmacology*; D008297:Male; D018977:Micronutrients / Q000008:administration & dosage / Q000494:pharmacology*; D009048:Motor Skills / Q000187:drug effects*; D015999:Multivariate Analysis; D009390:Nepal; D011581:Psychological Tests; D015032:Zinc / Q000008:administration & dosage / Q000494:pharmacology*
chemical_list: D018977:Micronutrients; D005492:Folic Acid; D007501:Iron; D015032:Zinc