The contribution of urinary cations to the blood pressure differences associated with migration
Autor: | Michael J. Klag, Josef Coresh, Jing Ping Mo, Jiang He, Jun Yun Chen, Paul K. Whelton, Ming Chu Qian, Guan Qing He, Pei Sheng Mo |
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Rok vydání: | 1995 |
Předmět: |
Adult
Male Rural Population China Alcohol Drinking Urban Population Epidemiology Urinary system Sodium Culture Diastole chemistry.chemical_element Hemodynamics Blood Pressure Urine Body Mass Index Excretion Electrolytes Animal science Cations Ethnicity Medicine Humans Transients and Migrants Traditional medicine business.industry Middle Aged Diet Blood pressure Cross-Sectional Studies chemistry Linear Models business Body mass index |
Zdroj: | American journal of epidemiology. 142(3) |
ISSN: | 0002-9262 |
Popis: | People living in unacculturated societies have a low average blood pressure and little rise in blood pressure with age. In a community-based survey in southwestern China, the authors assessed the contribution of urinary cation excretion to differences in blood pressure between an unacculturated group (Yi farmers) and migrants to an urban environment, as well as urban controls from a different ethnic group (Han). In March 1989, blood pressure and overnight urinary electrolyte levels were measured on 3 consecutive days in 313 Yi farmers, 265 Yi migrants, and 253 urban Han residents, all male. Of the urinary electrolytes, a higher sodium : potassium ratio best explained the higher blood pressure in the migrants. Yi farmers had lower systolic (106.7 mmHg vs. 114.8 mmHg, respectively) and diastolic (66.2 mmHg vs. 71.3 mmHg, respectively) blood pressures than Yi migrants. However, even after adjustment for age, body mass index, alcohol intake, and urinary sodium, potassium, calcium, and magnesium excretion, Yi farmers continued to have lower average blood pressures than Yi migrants. In pooled analyses of all three groups, urinary sodium and calcium were positively related and urinary potassium and magnesium were inversely related to blood pressure. Migration is associated with a higher blood pressure that is only partially explained by higher levels of adiposity and alcohol and sodium intake and lower levels of potassium and magnesium intake. Am J Epidemiol 1995 ; 142 :295-303. |
Databáze: | OpenAIRE |
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