TY - JOUR
T1 - Salt intake and the validity of a salt intake assessment system based on a 24-h dietary recall method in pregnant Japanese women
AU - Satoh, Michihiro
AU - Tanno, Yumi
AU - Hosaka, Miki
AU - Metoki, Hirohito
AU - Obara, Taku
AU - Asayama, Kei
AU - Hoshi, Kazuhiko
AU - Suzuki, Masakuni
AU - Mano, Nariyasu
AU - Imai, Yutaka
N1 - Funding Information:
This work was supported by Grants for Scientific Research (24659314) from the Ministry of Education, Culture, Sports, Science, and Technology, Japan; a Grant-in-Aid from the Japan Society for the Promotion of Science (JSPS) fellows (25.9328); and in part by a Grant from the Sendai Knowledge Cluster Initiative, Sendai, Japan. None of the authors declare any conflicts of interest.
Publisher Copyright:
© 2015 Taylor & Francis Group, LLC.
PY - 2015/8/18
Y1 - 2015/8/18
N2 - Background: Information regarding salt intake in pregnant women in Japan is limited. An electronic system for the assessment of salt intake using a 24-h dietary recall method has been developed in Japan. The objectives of the present study were to investigate salt intake in pregnant women and to compare the salt intake estimated by the electronic salt intake assessment system with that measured by 24-h urinary salt excretion (24-hUNaCl). Methods: Data were collected on 24-hUNaCl and salt intake estimated by the salt intake assessment system for 35 pregnant Japanese women at approximately 20 weeks of gestation. The adjusted 24-hUNaCl (24-hUNaCl/[the number of urinations during the examination day - the number of missing urine collections] × the number of urinations during the examination day, g/day) was used as a standard. Results: The mean adjusted 24-hUNaCl was 7.7 ± 2.5 g/day, and mean systolic/diastolic blood pressure values were 106.1 ± 8.6/62.8 ± 6.5 mmHg. The adjusted 24-hUNaCl was significantly correlated with the salt intake estimated by the salt intake assessment system (r = 0.47, p = 0.004). Bland-Altman analysis showed no significant mean difference (adjusted 24-hUNaCl - salt intake estimated by the assessment system = -0.36 g/day, p = 0.4) and no significant proportional bias (p = 0.1). Conclusion: These results suggest that pregnant women in Japan restrict their salt intake, at least when they are being examined for salt intake. They also suggest that repeated use of the described system may be useful in estimating salt intake in pregnant women.
AB - Background: Information regarding salt intake in pregnant women in Japan is limited. An electronic system for the assessment of salt intake using a 24-h dietary recall method has been developed in Japan. The objectives of the present study were to investigate salt intake in pregnant women and to compare the salt intake estimated by the electronic salt intake assessment system with that measured by 24-h urinary salt excretion (24-hUNaCl). Methods: Data were collected on 24-hUNaCl and salt intake estimated by the salt intake assessment system for 35 pregnant Japanese women at approximately 20 weeks of gestation. The adjusted 24-hUNaCl (24-hUNaCl/[the number of urinations during the examination day - the number of missing urine collections] × the number of urinations during the examination day, g/day) was used as a standard. Results: The mean adjusted 24-hUNaCl was 7.7 ± 2.5 g/day, and mean systolic/diastolic blood pressure values were 106.1 ± 8.6/62.8 ± 6.5 mmHg. The adjusted 24-hUNaCl was significantly correlated with the salt intake estimated by the salt intake assessment system (r = 0.47, p = 0.004). Bland-Altman analysis showed no significant mean difference (adjusted 24-hUNaCl - salt intake estimated by the assessment system = -0.36 g/day, p = 0.4) and no significant proportional bias (p = 0.1). Conclusion: These results suggest that pregnant women in Japan restrict their salt intake, at least when they are being examined for salt intake. They also suggest that repeated use of the described system may be useful in estimating salt intake in pregnant women.
KW - Blood pressure
KW - pregnancy-induced hypertension
KW - pregnant
KW - salt intake
KW - urinary sodium excretion
UR - http://www.scopus.com/inward/record.url?scp=84942086101&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84942086101&partnerID=8YFLogxK
U2 - 10.3109/10641963.2015.1057832
DO - 10.3109/10641963.2015.1057832
M3 - Article
C2 - 26395952
AN - SCOPUS:84942086101
VL - 37
SP - 459
EP - 462
JO - Clinical and Experimental Hypertension
JF - Clinical and Experimental Hypertension
SN - 1064-1963
IS - 6
ER -