nowson-effectsofa-2016.pdf (675.7 kB)
Effects of a community-based salt reduction program in a regional Australian population
journal contribution
posted on 2016-05-01, 00:00 authored by M-A Land, J H Y Wu, A Selwyn, M Crino, M Woodward, J Chalmers, J Webster, Caryl NowsonCaryl Nowson, Paul Brian Jeffery, W Smith, V Flood, B NealBACKGROUND: Salt reduction is a public health priority but there are few studies testing the efficacy of plausible salt reduction programs. METHODS: A multi-faceted, community-based salt reduction program using the Communication for Behavioral Impact framework was implemented in Lithgow, Australia. Single 24-h urine samples were obtained from 419 individuals at baseline (2011) and from 572 at follow-up (2014). Information about knowledge and behaviors relating to salt was also collected. RESULTS: Survey participants were on average 56 years old and 58 % female. Mean salt intake estimated from 24-h urine samples fell from 8.8 g/day (SD = 3.6 g/day) in 2011 to 8.0 (3.6) g/day in 2014 (-0.80, 95 % confidence interval -1.2 to -0.3;p < 0.001). There were significant increases in the proportion of participants that knew the recommended upper limit of salt intake (18 % vs. 29 %; p < 0.001), knew the importance of salt reduction (64 % vs. 78 %; p < 0.001) and reported changing their behaviors to reduce their salt intake by using spices (5 % vs. 28 %; p < 0.001) and avoiding eating out (21 % vs. 34 %; p < 0.001). However, the proportions that checked food labels (30 % vs. 25 %; p = 0.02) fell, as did the numbers avoiding processed foods (44 % vs. 35 %; p = 0.006). Twenty-six percent reported using salt substitute at the end of the intervention period and 90 % had heard about the program. Findings were robust to multivariable adjustment. CONCLUSIONS: Implementation of this multi-faceted community-based program was associated with a ~10 % reduction in salt consumption in an Australian regional town. These findings highlight the potential of well-designed health promotion programs to compliment other population-based strategies to bring about much-needed reductions in salt consumption. CLINICAL TRIAL REGISTRATION: NCT02105727 .
History
Journal
BMC public healthVolume
16Article number
388Pagination
1 - 11Publisher
BioMed CentralLocation
London, Eng.Publisher DOI
eISSN
1471-2458Language
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2016, Land et al.Usage metrics
Categories
No categories selectedKeywords
24-hour urineCardiovascular disease preventionSaltSodiumScience & TechnologyLife Sciences & BiomedicinePublic, Environmental & Occupational HealthPOISSON REGRESSION APPROACHWORLD HYPERTENSION LEAGUEURINARY SODIUM-EXCRETIONSOCIETY-OF-HYPERTENSIONBLOOD-PRESSUREDIETARY-SODIUMPUBLIC-HEALTHINTAKE TARGETFOODPOTASSIUM
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC