title: Dietary intake of potassium and associated dietary factors among representative samples of Japanese general population: NIPPON DATA 80/90.
abstract: OBJECTIVE
  The purpose of this study was to investigate the dietary potassium intake and associated other dietary factors among a representative sample cohort of Japanese population.
  
  
  METHODS
  We obtained data from NIPPON DATA80 and 90 that were conducted with the National Nutrition Surveys in 1980 and in 1990. Then we estimated nutrient and food intakes of individuals in the National Nutrition Survey of 1980 and that of 1990, which were adjusted on the basis of data of the National Nutrition Survey of 1995. We analyzed data for 10,422 participants (4585 men and 5837 women) in NIPPON DATA80 and 8342 participants (3488 men and 4854 women) in NIPPON DATA90 having dietary potassium intake information.
  
  
  RESULTS
  In NIPPON DATA80 and 90 it was observed that there was a significant relationship between the dietary potassium intake and age for both men and women. Higher potassium intake was associated with higher age, intake of protein, iron, calcium, sodium, vitamins, and fiber. Regarding food groups, lower amount of dietary cereals, rice, flour, fats and oils were associated with higher dietary potassium for both men and women. On the other hand, higher intake of nuts, potatoes, soy beans, fruits, vegetables, mushrooms, sea algae, fish and shellfish were associated with higher dietary potassium.
  
  
  CONCLUSIONS
  We obtained the mean dietary potassium intake and its association with other dietary nutrient intake in Japanese adults as the baseline data in NIPPON DATA80 and in NIPPON DATA90.
authors.affiliation: Department of Health Science, Shiga University of Medical Science, Ohtsu, Japan. turin@belle.shiga-med.ac.jp
authors.forename: Tanvir Chowdhury
authors.initials: TC
authors.lastname: Turin
authors.forename: Nagako
authors.initials: N
authors.lastname: Okuda
authors.forename: Katsuyuki
authors.initials: K
authors.lastname: Miura
authors.forename: Yasuyuki
authors.initials: Y
authors.lastname: Nakamura
authors.forename: Nahid
authors.initials: N
authors.lastname: Rumana
authors.forename: Hirotsugu
authors.initials: H
authors.lastname: Ueshima
mesh_terms: D000367:Age Factors; D000704:Analysis of Variance; D015331:Cohort Studies; D004032:Diet / Q000706:statistics & numerical data*; D005260:Female; D006306:Health Surveys; D006801:Humans; D007564:Japan; D008297:Male; D008875:Middle Aged; D009749:Nutrition Surveys; D017419:Potassium, Dietary / Q000008:administration & dosage*
chemical_list: D017419:Potassium, Dietary