Contributions of food categories to absolute nutrient intake and between-person variation within a representative sample of 2677 Norwegian men and women

Abstract

Telefon: 22 24 90 66 telefaks: 22 24 90 91 e-post: lars.johansson@sef.no SAMMENDRAGKunnskap om endringer i matvarenes sammensetning og befolkningens kosthold er grunnleggende for utforming og oppfølging av en helsefremmende mat-og ernaeringspolitikk. Dagens system for overvåking av kostholdet bygger først og fremst på en matvaredatabase og opplysninger om forbruket av matvarer fra tre typer datasett; matforsyningsstatistikk, forbruksundersøkelser og kostholdsundersøkelser. Det avgis årlig en vurdering av utviklingen i norsk kosthold i forhold til mat-og ernaeringspolitiske målsettinger. Det norske systemet for overvåking av kostholdet er blitt betydelig styrket i løpet av 1990-årene ved innføringen av regelmessige kostholdsundersøkelser blant landsrepresentative utvalg av befolkningen i ulike aldersgrupper og økte ressurser til analyse av naeringsinnholdet i matvarer. Det er imidlertid beskjedent sammenlignet med datainnsamlingen i land som USA og Storbritannia. Det norske overvåkingssystemet er forsatt i en utviklingsfase, og det må justeres og kompletteres etter hvert. Dessuten vil det arbeides med å kvalitetssikre datainnsamlingen.Johansson L. Surveillance of the diet in Norway -methods and results.Nor J Epidemiol 2000; 10 (1): 31-42.

Methodological challenges when monitoring the diet of pregnant women in a large study: experiences from the Norwegian Mother and Child Cohort Study (MoBa)

“…1996). Stepwise regression analyses have been applied to the Norwegian food intake data to identify the most discriminating food items (Mosdøl et al . 2000).…”

“…The number of food categories that must be included in a FFQ in order to capture the variation between persons within a population varies for different foods and nutrients Mark et al 1996). Stepwise regression analyses have been applied to the Norwegian food intake data to identify the most discriminating food items (Mosdøl et al 2000). Thus we feel confident that our food questions cover the major foods and food patterns representative of the majority of the Norwegian population.…”

Frequent use of staff canteens is associated with unhealthy dietary habits and obesity in a Norwegian adult population

“…The questions covered intake of bread (slices per day for three categories), bread spreads (no portion size; response categories of 'seldom/never', '1-2 times/week', '3-4 times/week', '5-7 times/week' and 'several times/day'), dinner dishes, sauces/dressings, cakes/sweets, fats (no portion size; response categories of 'seldom/never', '1-3 times/month', '1-2 times/week', '3-4 times/week' and '5-7 times/week'), fruit, vegetables (no portion size; response categories of 'seldom/never', '1-3 times/month', '1-3 times/week', '4-6 times/week', '1-2 times/day' and '$3 times/day') and milk, fruit juice, soft drinks (in glasses; response categories of 'seldom/never', '1-6/week', '1/day', '2-3/day' and '$4/day'). The selection of food items was based upon previous analyses of a representative Norwegian sample identifying items contributing the most to between-person variability in energy or nutrient intake (21) . The food frequency questions have previously been validated against intake of the matching food/food group based on a 14 d diet diary (22) .…”

High education is associated with low fat and high fibre, beta-carotene and vitamin C - Computation of nutrient intake based on a short food frequency questionnaire in 17,265 men and women in the Tromsø Study

“…It is, however, known that information about the frequency of intake of a limited number of food items explains a large part of the between-person variation in nutrient intake (11)(12)(13)(14)(15). This means that there is a relatively high correlation coefficient between the nutrient intake estimated from a few food items and that estimated from a comprehensive dietary survey method covering the intake of many food items.…”