Evidence map›Paper›PMID 37620015›Full record

Trial reportBMJ (Clinical research ed.)2023

Effect of home cook interventions for salt reduction in China: cluster randomised controlled trial.

Xiaochang Zhang, Puhong Zhang, Danyang Shen, Yuan Li, Feng J He, Jixiang Ma, Wei Yan, Yifu Gao, Donghui Jin, Ying Deng and 5 more

Open access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in BMJ (Clinical research ed.), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
3.1field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Metabolic diseases in the East Asian populations.Nature reviews. Gastroenterology & hepatology · 2025
    Review
  5. Article
  6. Nutrition and Hypertension Researches in 2023: focus on salt intake and blood pressure.Hypertension research : official journal of the Japanese Society of Hypertension · 2025
    Review
  7. Article
  8. Article
  9. Article
  10. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

15 authors at 11 institutions in 3 countries.

Xiaochang ZhangChinese Center for Disease Control and Prevention, Beijing, China.
Puhong Zhang
Danyang ShenBeijing Center for Diseases Control and Prevention, Beijing, China.
Yuan LiThe George Institute for Global Health, Beijing, China.
Feng J HeWolfson Institute of Population Health, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK.
Jixiang MaShandong Center for Disease Control and Prevention, Jinan, China.
Wei YanJiangxi Center for Disease Control and Prevention, Nanchang, China.
Yifu GaoHebei Center for Disease Control and Prevention, Shi Jiazhuang, China.
Donghui JinHunan Center for Disease Control and Prevention, Changsha, China.
Ying DengSichuan Center for Disease Control and Prevention, Chengdu, China.
Fangming GuoQinghai Center for Disease Control and Prevention, Xining, China.
Shichun YanHeilongjiang Center for Disease Control and Prevention, Haerbin, China.
Jing SongWolfson Institute of Population Health, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK.
Graham A MacGregorWolfson Institute of Population Health, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK.
Jing WuChinese Center for Disease Control and Prevention, Beijing, China wujing@chinacdc.cn.ORCID 0000-0003-3519-0839
Queen Mary University of London · GBChinese Center For Disease Control and Prevention · CNBeijing Center for Disease Prevention and Control · CNHebei Provincial Center for Disease Control and Prevention · CNHeilongjiang Center for Tuberculosis Control and Prevention · CNHunan Provincial Center for Disease Control and Prevention · CNNanchang Center for Disease Control and Prevention · CNQinghai Institute for Endemic Diease Prevention and Control · CNShandong Center for Disease Control and Prevention · CNSichuan Center for Disease Control and Prevention · CNUNSW Sydney · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo determine the effects of salt reduction interventions designed for home cooks and family members.

designCluster randomised controlled trial.

settingSix provinces in northern, central, and southern China from 15 October 2018 to 30 December 2019.

participants60 communities from six provinces (10 communities from each province) were randomised; each community comprised 26 people (two people from each of 13 families).

interventionsParticipants in the intervention group received 12 month interventions, including supportive environment building for salt reduction, six education sessions on salt reduction, and salt intake monitoring by seven day weighed record of salt and salty condiments. The control group did not receive any of the interventions.

main outcome measureDifference between the two groups in change in salt intake measured by 24 hour urinary sodium during the 12 month follow-up.

results1576 participants (775 (49.2%) men; mean age 55.8 (standard deviation 10.8) years) from 788 families (one home cook and one other adult in each family) completed the baseline assessment. After baseline assessment, 30 communities with 786 participants were allocated to the intervention group and 30 communities with 790 participants to the control group. During the trial, 157 (10%) participants were lost to follow-up, and the remaining 706 participants in the intervention group and 713 participants in the control group completed the follow-up assessment. During the 12 month follow-up, the urinary sodium excretion decreased from 4368.7 (standard deviation 1880.3) mg per 24 hours to 3977.0 (1688.8) mg per 24 hours in the intervention group and from 4418.7 (1973.7) mg per 24 hours to 4330.9 (1859.8) mg per 24 hours in the control group. Compared with the control group, adjusted mixed linear model analysis showed that the 24 hour urinary sodium excretion in the intervention group was reduced by 336.8 (95% confidence interval 127.9 to 545.7) mg per 24 hours (P=0.002); the systolic and diastolic blood pressures were reduced by 2.0 (0.4 to 3.5) (P=0.01) and 1.1 (0.1 to 2.0) mm Hg (P=0.03), respectively; and the knowledge, attitude, and behaviours in the intervention group improved significantly.

conclusionsThe community based salt reduction package targeting home cooks and family members was effective in lowering salt intake and blood pressure. This intervention has the potential to be widely applied in China and other countries where home cooking remains a major source of salt intake.

trial registrationChinese Clinical Trial Registry ChiCTR1800016804.

Indexed as

FamilySodium Chloride, DietaryAdultChinaCookingFemaleHumansMaleMiddle AgedSodiumSodiumSodium Chloride, Dietary

Identifiers

PMID37620015
PMCPMC10448250
OpenAlexW4386149761

What Socratic holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.