MARC details
| 000 -LEADER |
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| fixed length control field |
03105nam a2200241Ia 4500 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
200306s2018 xx 000 0 und d |
| 100 ## - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Bean, Melanie K. |
| 245 #0 - TITLE STATEMENT |
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| Title |
Reliability and validity of digital imagery methodology for measuring starting portions and plate waste from school salad bars / |
| Statement of responsibility, etc. |
Melanie K. Bean, Hollie A. Raynor, Laura M. Thornton, Alexandra Sova, Mary Dunne Stewart, Suzanne E. Mazzeo Hollie A. Raynor, Laura M. Thornton, Alexandra Sova, Mary Dunne Stewart, Suzanne E. Mazzeo |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) |
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| Date of publication, distribution, etc. |
August 2018 |
| 336 ## - CONTENT TYPE |
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| Content type term |
text |
| 337 ## - MEDIA TYPE |
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| Media type term |
unmediated |
| 338 ## - CARRIER TYPE |
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| Carrier type term |
volume |
| 440 ## - SERIES STATEMENT/ADDED ENTRY--TITLE |
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| Number of part/section of a work |
118 : 8, page 1482-1489 |
| Title |
Journal of the Academy of Nutrition and Dietetics |
| 520 ## - SUMMARY, ETC. |
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| Summary, etc. |
Background Scientifically sound methods for investigating dietary consumption patterns from self-serve salad bars are needed to inform school policies and programs. Objective To examine the reliability and validity of digital imagery for determining starting portions and plate waste of self-serve salad bar vegetables (which have variable starting portions) compared with manual weights. Design/methods In a laboratory setting, 30 mock salads with 73 vegetables were made, and consumption was simulated. Each component (initial and removed portion) was weighed; photographs of weighed reference portions and pre- and post-consumption mock salads were taken. Seven trained independent raters visually assessed images to estimate starting portions to the nearest ΒΌ cup and percentage consumed in 20% increments. These values were converted to grams for comparison with weighed values. Statistical analyses Intraclass correlations between weighed and digital imagery-assessed portions and plate waste were used to assess interrater reliability and validity. Pearson's correlations between weights and digital imagery assessments were also examined. Paired samples t tests were used to evaluate mean differences (in grams) between digital imagery-assessed portions and measured weights. Results Interrater reliabilities were excellent for starting portions and plate waste with digital imagery. For accuracy, intraclass correlations were moderate, with lower accuracy for determining starting portions of leafy greens compared with other vegetables. However, accuracy of digital imagery-assessed plate waste was excellent. Digital imagery assessments were not significantly different from measured weights for estimating overall vegetable starting portions or waste; however, digital imagery assessments slightly underestimated starting portions (by 3.5 g) and waste (by 2.1 g) of leafy greens. Conclusions This investigation provides preliminary support for use of digital imagery in estimating starting portions and plate waste from school salad bars. Results might inform methods used in empirical investigations of dietary intake in schools with self-serve salad bars. |
| 521 ## - TARGET AUDIENCE NOTE |
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| Target audience note |
Nutrition. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Elementary school. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Nutrition policy. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Plate waste. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Salad bars. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
School lunch. |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
Library of Congress Classification |
| Koha item type |
Articles |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) |
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| Cataloger's initials, CIN (RLIN) |
84496 |
| First Date, FD (RLIN) |
142859 |
