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Predicting the effectiveness of interventions on population-level sodium reduction: A simulation modeling study.

Yiping Zeng1, Zeshui Xu1, Yu Rao2

  • 1Department of Management Science and Engineering Business School, Sichuan University Chengdu China.

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|March 14, 2022
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Summary

Reducing dietary sodium intake significantly lowers gastric cancer (GCa) burden in China. Salt substitutes are more effective than salt-restriction spoons for reducing GCa and preventing health inequalities.

Keywords:
Chinacancer burdendietary‐sodiumhealth disparitiesinterventions

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Area of Science:

  • Public Health
  • Epidemiology
  • Nutrition Science

Background:

  • High dietary sodium intake is a significant risk factor for gastric cancer (GCa).
  • Optimal strategies for sodium restriction to reduce GCa burden remain unclear.
  • China faces a substantial GCa burden linked to excess salt consumption.

Purpose of the Study:

  • To analyze the impact of sodium consumption policies on GCa burden distribution in China.
  • To evaluate the effectiveness of different salt reduction strategies.

Main Methods:

  • A microscopic simulation study using synthetic populations mirroring China's demographics.
  • Incorporated dietary patterns and GCa risk estimates linked to excess salt intake.
  • Data sourced from the China Health and Nutrition Survey, Global Burden of Disease Project, and national statistics.

Main Results:

  • Estimated national disease burden from excess sodium intake at 472.9 million DALYs (2010-2030).
  • GCa burden disproportionately affects central and southern Chinese provinces.
  • Salt substitute strategy projected to avoid 67.2% of GCa burden, versus 16.7% for salt-restriction spoons.

Conclusions:

  • Dietary salt reduction policies are highly effective in reducing overall GCa burden.
  • Salt substitutes demonstrate greater potential than salt-restriction spoons in mitigating GCa and preventing health inequalities.