Macroeconomic Development and Dramatic Increase in Stroke Burden in Rural China: A 25-Year Population-Based Study

Area of Science:

• Public Health
• Epidemiology
• Health Economics

Background:

• Low socioeconomic status is a known risk factor for high stroke incidence.
• Quantitative links between national economic development and stroke burden remain underexplored, particularly in developing nations.
• Understanding these associations is crucial for public health interventions during economic transitions.

Purpose of the Study:

• To quantitatively assess the association between macroeconomic development indicators and stroke burden in rural China.
• To explore the relationship between gross domestic product (GDP) and per capita net income (PCNI) with stroke incidence.

Main Methods:

• A population-based, prospective study conducted in rural Tianjin, China, from 1992 to 2016.
• Data collected on annual stroke events and deaths, alongside economic indicators: purchasing power parity-adjusted GDP (PPP-aGDP) and PCNI.
• Statistical analysis assessed the association between stroke incidence and changes in PPP-aGDP and PCNI.

Main Results:

• First-ever stroke incidence significantly increased with rising PPP-aGDP and PCNI in both men and women.
• Increases in economic indicators were associated with higher incidence of ischemic stroke and intracerebral hemorrhage.
• Macroeconomic development correlated with an earlier age of onset for intracerebral hemorrhage in men.

Conclusions:

• Macroeconomic development in rural China is positively associated with increased stroke incidence.
• Enhanced healthcare investments are essential to mitigate the rising stroke burden during economic development.
• Findings offer guidance for other developing countries on controlling stroke risk factors during economic transitions.