Linked Life Data

7485070

Source:http://linkedlifedata.com/resource/pubmed/id/7485070

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
1995-12-7
pubmed:abstractText
The authors studied temporal change in the reproducibility of a self-administered food frequency questionnaire. During 1988-1994, 492 residents of a rural Japanese town completed five questionnaires including 27 food items, with intervals ranging from 2 weeks through 5.5 years. The reproducibility decreased steadily over time for pairs of the questionnaires administered in the same season (median Spearman's r at 2 weeks and 5 years = 0.62 and 0.28, respectively). The reduction was less marked for those surveyed in different seasons (median r at 5 months and 5.5 years = 0.35 and 0.28, respectively). The short-term, different season correlation at 5 months was lower than the short-term, same season correlation at 1 year. For individual food items, a lower initial reproducibility, infrequent consumption, and a larger difference in seasonal intake were associated with a greater reduction in reproducibility over time. The results indicate that reproducibility studies should deliberately choose the intervals and the seasons for surveys.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0002-9262
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
142
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1231-5
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Temporal change in the reproducibility of a self-administered food frequency questionnaire.
pubmed:affiliation
Department of Public Health, Tohoku University School of Medicine, Miyagi, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't