title: The influence of age and body mass index on relative accuracy of energy intake among Japanese adults.
abstract: OBJECTIVE
  To examine relationships between the ratio of energy intake to basal metabolic rate (EI/BMR) and age and body mass index (BMI) among Japanese adults.
  
  
  METHODS
  Energy intake was assessed by 4-day semi-weighed diet records in each of four seasons (16 days in total). The EI/BMR ratio was calculated from reported energy intake and estimated basal metabolic rate as an indicator of reporting accuracy.
  
  
  METHODS
  Residents in three areas in Japan, namely Osaka (urban), Nagano (rural inland) and Tottori (rural coastal).
  
  
  METHODS
  One hundred and eighty-three healthy Japanese men and women aged > or =30 years.
  
  
  RESULTS
  The oldest age group (> or =60 years) had higher EI/BMR values than the youngest age group (30-39 years) in both sexes (1.74 vs. 1.37 for men; 1.65 vs. 1.43 for women). In multiple regression analyses, age correlated positively (partial correlation coefficient, beta = 0.012, P < 0.001 for men; beta = 0.011, P < 0.001 for women) and BMI correlated negatively (beta = -0.031, P < 0.001 for men; beta = -0.025, P < 0.01 for women) with EI/BMR.
  
  
  CONCLUSIONS
  Age and BMI may influence the relative accuracy of energy intake among Japanese adults.
authors.affiliation: Scientific Evaluation of Dietary Reference Intakes' Project, National Institute of Health and Nutrition, Tokyo, Japan.
authors.forename: Hitomi
authors.initials: H
authors.lastname: Okubo
authors.forename: Satoshi
authors.initials: S
authors.lastname: Sasaki
authors.forename: Naoko
authors.initials: N
authors.lastname: Hirota
authors.forename: Akiko
authors.initials: A
authors.lastname: Notsu
authors.forename: Hidemi
authors.initials: H
authors.lastname: Todoriki
authors.forename: Ayako
authors.initials: A
authors.lastname: Miura
authors.forename: Mitsuru
authors.initials: M
authors.lastname: Fukui
authors.forename: Chigusa
authors.initials: C
authors.lastname: Date
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D001481:Basal Metabolism / Q000502:physiology*; D015992:Body Mass Index; D015930:Diet Records; D002149:Energy Intake / Q000502:physiology*; D005247:Feeding Behavior; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D012044:Regression Analysis; D012621:Seasons; D012680:Sensitivity and Specificity