Training in portion-size estimation is known to improve the accuracy of dietary self-reporting in adults, but there is no comparable evidence for children.
To obtain this information, we studied 110 second-and third-grade American Indian schoolchildren (34 control subjects were not trained), testing the hypotheses that a 45-min portion-size estimation training session would reduce children's food quantity estimation error, and that the improvement would be dependent on food type, measurement type, or both.
Training was a hands-on, 4-step estimation and measurement skill-building process.
Mixed linear models (using logarithmic-transformed data) were used to evaluate within-and between-group differences from pre-to posttest.
Test scores were calculated as percentage estimation errors by difference and absolute value methods.
Mean within-group estimation error decreased significantly (P<0.05) from pre-to posttest for 7 of 12 foods (trained group) by both calculation methods, plus 3 additional foods by the difference method and one additional food by the absolute value method.
Significant (P<0.05) between-group differences occurred for 3 foods, reflecting a greater decrease in estimation error for the trained group.
Improvement was greatest for solid foods estimated by dimensions (P>0.05) or in cups (P<0.05), for liquids estimated by volume or by label reading (P<0.001), and for one amorphous food estimated in cups (P<0.01). (...)
Mots-clés Pascal : Amérindien, Origine ethnique, Entraînement, Evaluation, Consommation alimentaire, Education nutritionnelle, Obésité, Prévention, Etat nutritionnel, Alimentation, Comportement alimentaire, Trouble nutrition, Enfant, Homme, Age scolaire
Mots-clés Pascal anglais : Amerindian, Ethnic origin, Dragging, Evaluation, Food intake, Nutrition education, Obesity, Prevention, Nutritional status, Feeding, Feeding behavior, Nutrition disorder, Child, Human, School age
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 99-0288094
Code Inist : 002B22B. Création : 16/11/1999.