In the Results section, the general dietary habits at home and at school are presented based on the questionnaire data. Nutrient intakes are calculated as the mean values from the food intake data of the previous 2 days. Intake from dietary supplements is not included. Results are presented separately for boys and girls and intakes are compared to the Finnish Nutrition Recommendations(10). Differences between the sexes were tested by x2 or Fisher’s exact test for the questionnaire data. The nutrient intake data were not normally distributed and were tested
by Mann–Whitney U test. All statistical analyses were performed with the SAS statistical software package version 8?2 (SAS Institute Inc., Cary, NC, USA).