Limits...
A novel online Food Recall Checklist for use in an undergraduate student population: a comparison with diet diaries.

Comrie F, Masson LF, McNeill G - Nutr J (2009)

Bottom Line: However, FoRC recorded significantly lower intakes of energy and alcohol and significantly higher intakes of fruit and vegetables and breakfast cereal compared with the food diary.For all variables except alcohol and percentage energy from fat, correlation co-efficients were statistically significant and greater than 0.5.At the group level, four days of FoRC showed good median agreement with the food diary and there was high correlation between methods for most foods and nutrients.

View Article: PubMed Central - HTML - PubMed

Affiliation: Institute of Applied Health Sciences, University of Aberdeen, Foresterhill, Aberdeen, AB25 2ZD, UK. fiona.comrie@foodstandards.gsi.gov.uk

ABSTRACT

Background: University students are commonly overlooked when diet of populations is measured and there is a lack of comprehensive dietary assessment in whole university student populations. To measure diet of undergraduate students, a new online 121-item Food Recall Checklist (FoRC) was designed as an alternative to a non-weighed record (food diary). This article reports the comparison between the new dietary assessment method (FoRC) and the food diary as a measure of energy (kJ), fat (g), Non-Starch Polysaccharide (NSP) (g), fruit and vegetables (g), breakfast cereal (g) and bread (g) and alcohol (units) intake.

Methods: Fifty-three students at the University of Aberdeen completed four days of FoRC then four days food diary. Median agreement and correlation between the two methods was assessed for foods and nutrients using the Spearman's rank correlation co-efficient and the Wilcoxon signed ranks test. Agreement between FoRC and food diary was assessed using the Bland-Altman method.

Results: The mean time taken to complete FoRC for one day was 7.4 minutes. Intakes of fat (g and % food energy), NSP and bread were similar between FoRC and the food diary. Median energy intake was 8185 kJ in the food diary and 8007 kJ in FoRC. However, FoRC recorded significantly lower intakes of energy and alcohol and significantly higher intakes of fruit and vegetables and breakfast cereal compared with the food diary. There was considerable variation in agreement between methods at the individual level. For all variables except alcohol and percentage energy from fat, correlation co-efficients were statistically significant and greater than 0.5.

Conclusion: At the group level, four days of FoRC showed good median agreement with the food diary and there was high correlation between methods for most foods and nutrients. This suggests that this novel method of assessing diet can provide a useful alternative for assessing group mean intakes but that individual intakes may need to be interpreted with care.

Show MeSH
Bland-Altman plot of energy intake (kJ): non-weighed record and FoRC.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC2654910&req=5

Figure 3: Bland-Altman plot of energy intake (kJ): non-weighed record and FoRC.

Mentions: Figures 3, 4, 5, 6, 7, 8, 9, 10 show the mean agreement and 95% confidence intervals between the diary and FoRC. Figure 3 shows mean energy intake from the diary compared to FoRC. At the absolute limits of variation, estimated energy intake could vary by up to 7000 kJ. In Figure 4, mean fat intakes (g) were widely spread and showed extensive variation. Figures 6, 7, 8, 9 and show Bland-Altman data for NSP (g), fruit and vegetables (g), bread (g) and breakfast cereal (g) intakes. The data were disrupted by a few large outliers in the each of the figures, but for the rest of the measures, results were concentrated around the mean difference line. However, for these nutrients and foods there was a tendency for wider differences between methods as the average intake from FoRC and the diary increased. There was no such pattern in the spread of data in Figures 3, 4, 5. Figure 10 shows the plot for alcohol and there was a clear indication that FoRC was more likely to underestimate alcohol intake the larger the amount of alcohol reported in the diary.


A novel online Food Recall Checklist for use in an undergraduate student population: a comparison with diet diaries.

Comrie F, Masson LF, McNeill G - Nutr J (2009)

Bland-Altman plot of energy intake (kJ): non-weighed record and FoRC.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2654910&req=5

Figure 3: Bland-Altman plot of energy intake (kJ): non-weighed record and FoRC.
Mentions: Figures 3, 4, 5, 6, 7, 8, 9, 10 show the mean agreement and 95% confidence intervals between the diary and FoRC. Figure 3 shows mean energy intake from the diary compared to FoRC. At the absolute limits of variation, estimated energy intake could vary by up to 7000 kJ. In Figure 4, mean fat intakes (g) were widely spread and showed extensive variation. Figures 6, 7, 8, 9 and show Bland-Altman data for NSP (g), fruit and vegetables (g), bread (g) and breakfast cereal (g) intakes. The data were disrupted by a few large outliers in the each of the figures, but for the rest of the measures, results were concentrated around the mean difference line. However, for these nutrients and foods there was a tendency for wider differences between methods as the average intake from FoRC and the diary increased. There was no such pattern in the spread of data in Figures 3, 4, 5. Figure 10 shows the plot for alcohol and there was a clear indication that FoRC was more likely to underestimate alcohol intake the larger the amount of alcohol reported in the diary.

Bottom Line: However, FoRC recorded significantly lower intakes of energy and alcohol and significantly higher intakes of fruit and vegetables and breakfast cereal compared with the food diary.For all variables except alcohol and percentage energy from fat, correlation co-efficients were statistically significant and greater than 0.5.At the group level, four days of FoRC showed good median agreement with the food diary and there was high correlation between methods for most foods and nutrients.

View Article: PubMed Central - HTML - PubMed

Affiliation: Institute of Applied Health Sciences, University of Aberdeen, Foresterhill, Aberdeen, AB25 2ZD, UK. fiona.comrie@foodstandards.gsi.gov.uk

ABSTRACT

Background: University students are commonly overlooked when diet of populations is measured and there is a lack of comprehensive dietary assessment in whole university student populations. To measure diet of undergraduate students, a new online 121-item Food Recall Checklist (FoRC) was designed as an alternative to a non-weighed record (food diary). This article reports the comparison between the new dietary assessment method (FoRC) and the food diary as a measure of energy (kJ), fat (g), Non-Starch Polysaccharide (NSP) (g), fruit and vegetables (g), breakfast cereal (g) and bread (g) and alcohol (units) intake.

Methods: Fifty-three students at the University of Aberdeen completed four days of FoRC then four days food diary. Median agreement and correlation between the two methods was assessed for foods and nutrients using the Spearman's rank correlation co-efficient and the Wilcoxon signed ranks test. Agreement between FoRC and food diary was assessed using the Bland-Altman method.

Results: The mean time taken to complete FoRC for one day was 7.4 minutes. Intakes of fat (g and % food energy), NSP and bread were similar between FoRC and the food diary. Median energy intake was 8185 kJ in the food diary and 8007 kJ in FoRC. However, FoRC recorded significantly lower intakes of energy and alcohol and significantly higher intakes of fruit and vegetables and breakfast cereal compared with the food diary. There was considerable variation in agreement between methods at the individual level. For all variables except alcohol and percentage energy from fat, correlation co-efficients were statistically significant and greater than 0.5.

Conclusion: At the group level, four days of FoRC showed good median agreement with the food diary and there was high correlation between methods for most foods and nutrients. This suggests that this novel method of assessing diet can provide a useful alternative for assessing group mean intakes but that individual intakes may need to be interpreted with care.

Show MeSH