title: [Methodological problems of evaluation of electrolyte intake in the clinical and population studies].
abstract: The paper deals with methodological problems of electrolyte intake in clinical and population-based studies. Marked inter- and intraindividual fluctuations were found to substantially affect the reliability of assessing the intake of electrolytes, which should be borne in mind in practice. Specifically, individual-based reliable characteristics of electrolyte intake (excretion) may be obtained after examining at least 8 daily urinary collections. The adequate validity of group electrolyte intake may be attained when a group consists of at least 8 persons. It is shown that it is feasible to employ the definite urine amounts to gain an insight into electrolyte intake.
authors.forename: A N
authors.initials: AN
authors.lastname: Britov
authors.forename: A M
authors.initials: AM
authors.lastname: Koba'l
authors.forename: I I
authors.initials: II
authors.lastname: Sapozhnikov
authors.forename: B I
authors.initials: BI
authors.lastname: Minchenko
authors.forename: E A
authors.initials: EA
authors.lastname: Grishenkov
authors.forename: O V
authors.initials: OV
authors.lastname: Molchanova
mesh_terms: D000328:Adult; D002136:Calcium, Dietary / Q000008:administration & dosage* / Q000652:urine; D002940:Circadian Rhythm; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009747:Nutritional Physiological Phenomena / Q000502:physiology*; D010783:Photometry / Q000379:methods; D011188:Potassium / Q000008:administration & dosage* / Q000652:urine; D012982:Sodium, Dietary / Q000008:administration & dosage* / Q000652:urine; D013054:Spectrophotometry, Atomic / Q000379:methods; D014586:USSR
chemical_list: D002136:Calcium, Dietary; D012982:Sodium, Dietary; D011188:Potassium
vernacular_title: Metodologicheskie problemy otsenki potrebleniia élektrolitov v klinicheskikh i populiatsionnykh issledovaniiakh.