November 15, 1991American Journal of Epidemiology
Migration, Blood Pressure Pattern, and Hypertension: The Yi Migrant Study
Why the study?
Does rural-urban migration affect blood pressure patterns and the prevalence of hypertension in the Yi people?
Population
14,505 persons aged 15-89 years in southwestern China, including 8,241 Yi farmers, 2,575 urban Yi migrants…
Comparison
Rural-urban migration (urban Yi migrants) vs Yi farmers and Han urban residents
Design
Cross-sectional
Authors
Discussion
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Implication
Rural-urban migration was associated with higher hypertension prevalence in Yi people; leaves open causal environmental effects and requires prospective confirmation.
Key Points
- This study investigates how rural-urban migration affects blood pressure patterns and hypertension prevalence among the Yi people in China.
- Measured blood pressure in 14,505 individuals (aged 15-89 years) including Yi farmers, Yi urban migrants, and Han urban residents.
- Analyzed differences in blood pressure patterns and hypertension prevalence between migrant and resident groups.
- Utilized standardized measurement methods to ensure reliability.
- Yi farmers exhibited the lowest mean blood pressure and hypertension prevalence (0.66%).
- Yi migrants had a mean hypertension prevalence of 4.25% and higher age-related blood pressure rise compared to farmers.
- Han men and women showed the highest blood pressure levels and hypertension prevalence (4.91% and 4.76%, respectively).
Structured PICO
Does rural-urban migration affect blood pressure patterns and the prevalence of hypertension in the Yi people?
P
Population
14,505 persons aged 15-89 years in southwestern China, including 8,241 Yi farmers, 2,575 urban Yi migrants, and 3,689 Han urban residents.
I
Intervention
Rural-urban migration (urban Yi migrants)
C
Comparator
Yi farmers (rural non-migrants) and Han urban residents
O
Outcome
Blood pressure levels, age-related rise in blood pressure, and prevalence of hypertensionsurrogate
Rural-urban migration is associated with an increased age-related rise in blood pressure and higher prevalence of hypertension, highlighting environmental influences on cardiovascular risk.
Cite This Study
He et al. (1991) studied this question.