Factors affecting reductions in dietary salt consumption in people of Chinese descent: An integrative review.
Alex Chan, Sally Wai-Chi Chan, Masuma Khanam and 1 others
PMID 35384036WHAT IT FOUND
Chinese-background adults often knew little about salt limits, and knowing hypertension did not reliably lead to less salt.
Taste, family cooking, measuring salt, language and access were barriers. Education helped knowledge, but intake often returned to baseline.
Key findings
01Fourteen studies involving 48,403 people of Chinese background found low salt-related knowledge and suboptimal adherence to salt restriction.
02Taste, measuring salt, family disagreement and language barriers limited sustained salt reduction.
03Salt-related education improved knowledge and dietary behaviour in one rural Chinese study, but family salt intake returned to baseline after three months in another study.
STILL TO COME
How it was doneWhat they foundWhat it means for RNs
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What it does not show
Eleven of 14 studies were cross-sectional, two were experimental and one was qualitative. Only one qualitative study was included, so motivations and lived experience may be under-represented. Some Chinese publications may not have been found because the authors relied on English resources and were not familiar with some Chinese keywords. Some studies relied on self-report or household salt measurement, so individual intake and attitudes may be inaccurate. Only 560 of the 48,403 participants lived in Western countries, so migrant-specific issues may be thinly represented. The review reported ages from 18 to 65 years, so people older than 65 were not represented.
Declared interests
Funded by the University of Newcastle Australia. The supplied text gives no further conflict-of-interest declaration.
The easy way to misread this
Do not conclude that more salt education will reduce dietary salt intake in Chinese-background patients. The review found low knowledge and barriers such as taste, measuring salt and family disagreement; one family-based study reported salt intake returned to baseline after three months.