Stages of change for salt intake and urinary salt excretion: Baseline results from the High-Risk and Population Strategy for Occupational Health Promotion (HIPOP-OHP) study

Junko Tamaki, Yuriko Kikuchi, Katsushi Yoshita, Toru Takebayashi, Nagako Chiba, Taichiro Tanaka, Tomonori Okamura, Fumiyoshi Kasagi, Junko Minai, Hirotsugu Ueshima

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

We investigate the relationship of urinary salt excretion to the stage of change to decrease salt intake in the Japanese diet. The data reported here were obtained from a baseline survey of the High-Risk and Population Strategy for Occupational Health Promotion (HIPOP-OHP) study that was conducted as a non-randomized control trial at 12 worksites in Japan. A total of 6,816 subjects (5,410 male, 1,406 female) were used in 1999 and 2000 for the analysis. We used three categories of stage of change: precontemplation or contemplation (P/C), preparation (P), and action or maintenance (A/M). Urinary salt excretion was estimated from the sodium and creatinine concentrations in spot urine samples. Multivariate analysis indicated that urinary salt excretion among males was 0.3 g/day greater in the P/C stage than in the A/M stage (p<0.05). For non-obese females, urinary salt excretion in the P/C stage was 0.6 g/day greater than in the A/M stage (p<0.05). Multivariate analysis showed that diastolic blood pressure in males not taking antihypertensive agents was 1.3 mmHg lower in the P/C stage than in the A/M stage (p<0.05). A similar but statistically insignificant tendency was observed among non-obese females. A significant association was demonstrated between stage of change for dietary salt intake and urinary salt excretion for both males and non-obese females. There may be a potential application of the stage of change model for reducing dietary salt intake in a health promotion program.

Original languageEnglish
Pages (from-to)157-166
Number of pages10
JournalHypertension Research
Volume27
Issue number3
DOIs
Publication statusPublished - 2004 Mar 1

Keywords

  • Dietary intervention
  • Population strategy
  • Stage of change
  • Urinary salt excretion
  • Worksite

ASJC Scopus subject areas

  • Internal Medicine
  • Physiology
  • Cardiology and Cardiovascular Medicine

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