Open AccessInterannual study of spot urine–evaluated sodium excretion in young Japanese women
Author(s) -
Yasutake Kenichiro,
Moriguchi Ririko,
Kajiyama Tomomi,
Miyazaki Hitomi,
Abe Shimako,
Masuda Takashi,
Imai Katsumi,
Iwamoto Masako,
Tsuda Hiroko,
Obe Masayo,
Kawate Hisaya,
Ueno Hiromi,
Ono Misaki,
Goromaru Ryoko,
Ohe Kenji,
Enjoji Munechika,
Tsuchihashi Takuya,
Nakano Shuji
Publication year - 2017
Publication title -
the journal of clinical hypertension
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.909
H-Index - 67
eISSN - 1751-7176
pISSN - 1524-6175
DOI - 10.1111/jch.13025
Subject(s) - medicine , excretion , urine , potassium , sodium , endocrinology , body weight , blood pressure , urinary system , zoology , physiology , chemistry , biology , organic chemistry
The authors investigated interannual differences in the sodium excretion levels of young healthy Japanese women as estimated from spot urine analysis at Nakamura Gakuen University from 1995 to 2015. Participants included 4931 women aged 18 to 20 years who were classified into three time periods according to year of health check: first (1995–2001), second (2002–2007), and third (2008–2015). Estimated daily urinary sodium and potassium excretion levels and the sodium to potassium ratio were 120.6±31.9 mmol, 35.2±8.1 mmol, and 3.5±0.9, respectively. Adjusted for body weight, sodium excretion, and potassium excretion significantly decreased in the second and third period compared with the first period ( P <.001). Systolic blood pressure also decreased in the same way between time periods ( P <.001). Estimated urinary excretion levels of sodium and potassium in young Japanese women have decreased over the past 20 years independently of body weight.