dc.contributor.author | Levine, J A | |
dc.contributor.author | Madden, A M | |
dc.contributor.author | Morgan, M Y | |
dc.date.accessioned | 2011-08-18T15:01:05Z | |
dc.date.available | 2011-08-18T15:01:05Z | |
dc.date.issued | 1987 | |
dc.identifier.citation | Levine , J A , Madden , A M & Morgan , M Y 1987 , ' Validation of a computer based system for assessing dietary intake ' , British Medical Journal (Clinical research ed.) , vol. 295 , no. 6594 , pp. 369-72 . https://doi.org/10.1136/bmj.295.6594.369 | |
dc.identifier.issn | 0267-0623 | |
dc.identifier.uri | http://hdl.handle.net/2299/6317 | |
dc.description.abstract | Dietary intake was assessed in 50 patients in hospital by using a dietary history method and computer based system for data collection and standard food tables to calculate the composition of nutrients. The results were compared with those from a weighed assessment that was calculated by using both food tables and manufacturers' food analyses. The use of the food tables overestimated mean (SEM) individual nutrient intakes by between 2.5% (1.5%) and 15.5% (3.0%). The mean errors associated with the dietary history assessment varied from -23% (7.8%) for fat intake to +21.4% (8.5%) for carbohydrate intake. Overall, 30% of the assessments of total nutrient intakes that were calculated using this method were within -20% to +20% of actual values; 18% were within -10% to +10%. The mean errors associated with the computer based assessment varied from -1.0% (4.3%) for carbohydrate intake to +8.5% (3.4%) for protein intake. Overall, 56% of the assessments of total nutrient intakes were within -20% to +20% of actual intakes; 31% were within -10% to +10%. The computer based system provides an accurate, reproducible, convenient, and inexpensive method for assessing dietary intake. | en |
dc.format.extent | 4 | |
dc.format.extent | 775795 | |
dc.language.iso | eng | |
dc.relation.ispartof | British Medical Journal (Clinical research ed.) | |
dc.subject | Automatic Data Processing | |
dc.subject | Data Collection | |
dc.subject | Diet Surveys | |
dc.subject | Energy Intake | |
dc.subject | Female | |
dc.subject | Humans | |
dc.subject | Male | |
dc.subject | Microcomputers | |
dc.subject | Middle Aged | |
dc.subject | Nutrition Surveys | |
dc.title | Validation of a computer based system for assessing dietary intake | en |
dc.contributor.institution | Department of Allied Health Professions and Midwifery | |
dc.contributor.institution | Health & Human Sciences Research Institute | |
dc.description.status | Peer reviewed | |
rioxxterms.versionofrecord | 10.1136/bmj.295.6594.369 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |