Comparison of 4 questionnaires for assessment of fruit and vegetable intake.
OBJECTIVE
This study compared fruit and vegetable assessments derived from 4 self-administered questionnaires.


METHODS
Among 102 adolescents, servings of fruits and vegetables assessed by 4 questionnaires were compared with estimates from 24-hour recalls.


RESULTS
The prevalence of consuming 5 or more servings of fruits and vegetables a day was underestimated by the questionnaires. Questionnaires asking subjects to recall their diet over the previous year were more effective in ranking subjects (r's > or = .42) than those assessing previous-day diet (r's > or = .30).


CONCLUSIONS
Brief assessments of fruit and vegetable intake are more useful for ranking subjects than for estimating prevalence of consumption of 5 or more servings per day.
Department of Medicine, Brigham and Women's Hospital, Boston, Mass., USA.
A E
AE
Field
G A
GA
Colditz
M K
MK
Fox
T
T
Byers
M
M
Serdula
R J
RJ
Bosch
K E
KE
Peterson
D000293:Adolescent; D002908:Chronic Disease; D005247:Feeding Behavior; D005260:Female; D005638:Fruit; D006801:Humans; D008297:Male; D009749:Nutrition Surveys; D012307:Risk Factors; D011795:Surveys and Questionnaires; D014675:Vegetables