Relationship between the awareness of salt restriction and the actual salt intake in hypertensive patients.
A 24-h home urine collection was conducted to estimate accurate salt intake in hypertensive outpatients. Using 24-h urinary creatinine excretion as a criterion for success, urine samples were obtained from 534 hypertensive patients. The urinary salt excretion of hypertensive outpatients ranged widely from 1.5 to 23.4 g/day (mean value 9.7 +/- 3.9 g/day). Urinary salt excretion was higher in males than in females (10.6 +/- 4.0 vs. 9.2 +/- 3.7 g/day, p<0.01). Based on the questionnaires, the patients were divided into salt-conscious patients, or those who were careful to reduce their daily salt intake, and non-salt-conscious patients. It was found that urinary salt excretion was lower in the salt-conscious group than in the non-salt-conscious group (9.4 +/- 3.8 vs. 10.6 +/- 4.0 g/day, p<0.01), but that urinary salt excretion adjusted for body weight was not significantly different between the two groups (0.16 +/- 0.06 vs. 0.17 +/- 0.07 g/kg/day). Our results suggest that there was no obvious reduction in the actual salt intake in salt-conscious patients, suggesting the importance of monitoring salt intake by 24-h home urine collection and informing patients of their actual salt intake as a means of encouraging the achievement of salt restriction.
Ohta
Yuko
Y
Division of Hypertension and Nephrology, Clinical Research Institute, National Kyushu Medical Center, Fukuoka, Japan. yukoo@intmed2.med.kyushu-u.ac.jp
Tsuchihashi
Takuya
T
Ueno
Michio
M
Kajioka
Tomoko
T
Onaka
Uran
U
Tominaga
Mitsuhiro
M
Eto
Kimika
K
D000368:Aged; D001835:Body Weight; D004039:Diet, Sodium-Restricted; D005260:Female; D006801:Humans; D006973:Hypertension / Q000178:diet therapy* / Q000523:psychology*; D008297:Male; D008875:Middle Aged; D010349:Patient Compliance; D010353:Patient Education as Topic; D017673:Sodium Chloride, Dietary / Q000008:administration & dosage* / Q000652:urine; D011795:Surveys and Questionnaires
D017673:Sodium Chloride, Dietary