1999-11-04
Dietary assessment in the elderly: Application of a two-step semiquantitative food frequency questionnaire for epidemiological studies
Publication
Publication
Journal of Human Nutrition and Dietetics , Volume 12 - Issue 5 p. 361- 373
Objective: Description and application of an adapted semiquantitative food frequency questionnaire (SFFQ) for dietary assessment in the elderly population of the Rotterdam Study. Design: Dietary assessment consisting of a two-step approach was performed in 5434 participants (2225 men, 3029 women) of the Rotterdam Study from 1990 to 1993, a population-based prospective cohort of 7983 subjects aged 55-95 years (participation rate 78%). Statistical analysis: Nutrient intake was calculated for men and women in four age groups (55-64 years, 65-74 years, 75-84 years, 85-95 years) and linear trend analysis for differences in mean nutrient intake across age groups (55-64 gears 65-74 years, 75-95 years) by regression analysis was conducted. The influence of baseline characteristics on energy and nutrient intakes adjusted by age and sex was investigated by one-way-analysis of variance. Results: The adapted SFFQ made it possible to measure nutrient intake in the elderly within a limited time frame (2 x 20 min) across a wide age range (55-95 years). For nutrient intake we observed a general decline in mean intake of energy and most nutrients with age in men. In women the relation with age was not consistent: for most nutrients mean intake showed a decrease with age (e.g. water, magnesium, potassium), for some an increase (e.g. total fat, saturated fat, mono/disaccharides), and some nutrients showed no substantial change (e.g. calcium, retinol). Reported nutrient intake was influenced by body mass index, smoking status, socioeconomic status and activities of daily living. A prescribed diet was reported by 12.9% of participants and 34.6% used supplements on a regular basis. Conclusions: The described two-step approach for dietary assessment in the elderly facilitated collection of data on dietary habits across a wide age range and within a limited time frame making it a suitable instrument for application in large-scale epidemiological studies in the elderly.
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| doi.org/10.1046/j.1365-277x.1999.00173.x, hdl.handle.net/1765/68518 | |
| Journal of Human Nutrition and Dietetics | |
| Organisation | Erasmus MC: University Medical Center Rotterdam |
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Klipstein-Grobusch, K., Witteman, J., den Breeijen, H., Goldbohm, A., Hofman, A., de Jong, P., … Grobbee, D. (1999). Dietary assessment in the elderly: Application of a two-step semiquantitative food frequency questionnaire for epidemiological studies. Journal of Human Nutrition and Dietetics, 12(5), 361–373. doi:10.1046/j.1365-277x.1999.00173.x |
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