title: Relationship between salt intake as estimated by a brief self-administered diet-history questionnaire (BDHQ) and 24-h urinary salt excretion in hypertensive patients.
abstract: Assessing an individual's salt intake is necessary for providing guidance with respect to salt restriction. However, the methods that exist for assessing salt intake have both merits and limitations. Therefore, the evaluation methods should be selected for their appropriateness to the patients and the environment of the medical facilities. The purpose of the present study was to investigate the validity of a brief self-administered diet-history questionnaire (BDHQ) by comparing the responses with 24-h urinary salt excretion. A total of 136 hypertensive outpatients (54 men and 82 women) were included in this study. All subjects were given the BDHQ and performed 24-h home urine collection. The energy-adjusted salt intake as assessed by the BDHQ was 12.3 (95% confidence interval: 11.8-12.9) g per day, and the urinary salt excretion evaluated by 24-h urinary collection was 9.0 (8.4-9.5) g per day. The energy-adjusted salt intake assessed by the BDHQ correlated significantly with the urinary salt excretion evaluated by 24-h urinary collection (r=0.34, P<0.001). In conclusion, the estimated salt intake evaluated by the BDHQ weakly, but significantly, correlated with 24-h urinary salt excretion. In clinical practice, it seems important to utilize both methods to assess an individual's salt intake in order to provide adequate guidance for salt restriction.
authors: 1] Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan [2] Division of Hypertension, Kyushu Medical Center, Clinical Research Institute, Fukuoka, Japan.
authors: Satoko
authors: S
authors: Sakata
authors: Division of Hypertension, Kyushu Medical Center, Clinical Research Institute, Fukuoka, Japan.
authors: Takuya
authors: T
authors: Tsuchihashi
authors: Division of Cardiology, Kyushu Central Hospital, Fukuoka, Japan.
authors: Hideyuki
authors: H
authors: Oniki
authors: Division of Hypertension, Kyushu Medical Center, Clinical Research Institute, Fukuoka, Japan.
authors: Mitsuhiro
authors: M
authors: Tominaga
authors: Division of Hypertension, Kyushu Medical Center, Clinical Research Institute, Fukuoka, Japan.
authors: Kimika
authors: K
authors: Arakawa
authors: Division of Hypertension, Kyushu Medical Center, Clinical Research Institute, Fukuoka, Japan.
authors: Minako
authors: M
authors: Sakaki
authors: Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
authors: Takanari
authors: T
authors: Kitazono
mesh_terms: D000368:Aged; D000959:Antihypertensive Agents / Q000627:therapeutic use; D004039:Diet, Sodium-Restricted; D005260:Female; D006801:Humans; D006973:Hypertension / Q000188:drug therapy / Q000378:metabolism*; D008297:Male; D008875:Middle Aged; D057566:Self Report; D017673:Sodium Chloride, Dietary / Q000008:administration & dosage* / Q000652:urine*; D011795:Surveys and Questionnaires
chemical_list: D000959:Antihypertensive Agents; D017673:Sodium Chloride, Dietary