Validation of a computer based system for assessing dietary intake

James A. Levine, A. M. Madden, M. Y. Morgan

Research output: Contribution to journalArticle

17 Citations (Scopus)

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.

Original languageEnglish (US)
Pages (from-to)369-372
Number of pages4
JournalBritish Medical Journal
Volume295
Issue number6594
StatePublished - 1987
Externally publishedYes

Fingerprint

Computer Systems
Food
Carbohydrates
Food Analysis
Fats
Proteins

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Levine, J. A., Madden, A. M., & Morgan, M. Y. (1987). Validation of a computer based system for assessing dietary intake. British Medical Journal, 295(6594), 369-372.

Validation of a computer based system for assessing dietary intake. / Levine, James A.; Madden, A. M.; Morgan, M. Y.

In: British Medical Journal, Vol. 295, No. 6594, 1987, p. 369-372.

Research output: Contribution to journalArticle

Levine, JA, Madden, AM & Morgan, MY 1987, 'Validation of a computer based system for assessing dietary intake', British Medical Journal, vol. 295, no. 6594, pp. 369-372.
Levine JA, Madden AM, Morgan MY. Validation of a computer based system for assessing dietary intake. British Medical Journal. 1987;295(6594):369-372.
Levine, James A. ; Madden, A. M. ; Morgan, M. Y. / Validation of a computer based system for assessing dietary intake. In: British Medical Journal. 1987 ; Vol. 295, No. 6594. pp. 369-372.
@article{03630ece9a4749028dd709d1842e4f78,
title = "Validation of a computer based system for assessing dietary intake",
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.",
author = "Levine, {James A.} and Madden, {A. M.} and Morgan, {M. Y.}",
year = "1987",
language = "English (US)",
volume = "295",
pages = "369--372",
journal = "The BMJ",
issn = "0959-8146",
publisher = "BMJ Publishing Group",
number = "6594",

}

TY - JOUR

T1 - Validation of a computer based system for assessing dietary intake

AU - Levine, James A.

AU - Madden, A. M.

AU - Morgan, M. Y.

PY - 1987

Y1 - 1987

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=0023190506&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0023190506&partnerID=8YFLogxK

M3 - Article

C2 - 3115455

AN - SCOPUS:0023190506

VL - 295

SP - 369

EP - 372

JO - The BMJ

JF - The BMJ

SN - 0959-8146

IS - 6594

ER -