Document Detail

Validation of a short food frequency questionnaire for assessment of dietary calcium intake in women.
MedLine Citation:
PMID:  8730608     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To assess the ability of a short food frequency questionnaire to measure dietary calcium intake in women. DESIGN: Estimates of calcium intake from the food frequency questionnaire were compared with those from seven-day estimated records in 58 Caucasian women aged 25-49 years in Dunedin, New Zealand. SUBJECTS: Subjects were recruited through poster and newspaper advertising around the central business district of Dunedin, New Zealand. Of 69 subjects initially recruited, nine failed to complete diet records and two were excluded on the basis that their diet record was unlikely to represent habitual intake. RESULTS: Mean dietary calcium intakes were 808.1mg/day from the estimated record and 776.9mg/day from the questionnaire. The mean difference in intake by the two methods (31.1mg, SD = 234.0, 95% CI = -30.4-92.7, p = 0.3) did not differ significantly from zero. The questionnaire classified women consuming less than 800mg calcium per day with 78% specificity. 81% of subjects when classified by the records fell into the same or adjacent quartiles when classified by the questionnaire. Only two subjects were grossly misclassified. CONCLUSIONS: The short food frequency questionnaire could be used to assess mean dietary calcium intake in young to middle aged women. The specificity of the questionnaire is high in identifying women who consume < 800mg calcium/day, therefore it could be used to target interventions for those with intakes below this level.
P Wilson; C Horwath
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  European journal of clinical nutrition     Volume:  50     ISSN:  0954-3007     ISO Abbreviation:  Eur J Clin Nutr     Publication Date:  1996 Apr 
Date Detail:
Created Date:  1996-09-26     Completed Date:  1996-09-26     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8804070     Medline TA:  Eur J Clin Nutr     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  220-8     Citation Subset:  IM    
Department of Human Nutrition, University of Otago, Dunedin, New Zealand.
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MeSH Terms
Body Mass Index
Calcium, Dietary / administration & dosage*
Diet Records*
Middle Aged
New Zealand
Nutrition Assessment*
Questionnaires / standards*
Reproducibility of Results
Women's Health*
Reg. No./Substance:
0/Calcium, Dietary

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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