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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
1996-8-22
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pubmed:abstractText |
The objective of this study was to assess the reliability of lactose consumption measured with a food-frequency questionnaire and to compare food-frequency data to prospectively recorded data. A self-administered food-frequency questionnaire (FF1) was completed by 295 women ages 38 to 49. Two months later, 75 received the same food-frequency questionnaire (FF2), and 75 received a 1-week diet diary listing 23 commonly eaten lactose-containing foods. Estimated mean intake of lactose was 16.1 g/d with FF1. Intake was slightly (but not significantly) higher at follow-up: Mean difference (95% confidence interval) was 1.4 (-0.8, 3.7) g/d for FF2 versus FF1, and 0.5 g (1.3, 2.3) g/d for the diet diary versus FF1. A moderate level of correlation was found: r = 0.57 between FF1 and FF2, and r = 0.65 between FF1 and the diet diary. Smaller subsets of items (n = 15 and n = 7) could be used to estimate lactose, with 89% and 82% agreement within tertiles, respectively. Since relatively few foods contain substantial amounts of lactose, a limited food-frequency or structured diary may be useful in research studies on the association between lactose consumption and ovarian cancer or other diseases.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
1047-2797
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
5
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
473-7
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pubmed:dateRevised |
2008-6-23
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pubmed:meshHeading |
pubmed-meshheading:8680610-Adult,
pubmed-meshheading:8680610-Diet Surveys,
pubmed-meshheading:8680610-Eating,
pubmed-meshheading:8680610-Female,
pubmed-meshheading:8680610-Food Habits,
pubmed-meshheading:8680610-Humans,
pubmed-meshheading:8680610-Lactose,
pubmed-meshheading:8680610-Middle Aged,
pubmed-meshheading:8680610-Questionnaires,
pubmed-meshheading:8680610-Reproducibility of Results
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pubmed:year |
1995
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pubmed:articleTitle |
Measurement of lactose consumption reliability and comparison of two methods.
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pubmed:affiliation |
Epidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.,
Research Support, Non-U.S. Gov't
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