Adams-Campbell L L, Nwankwo M U, Ukoli F A, Janney C
Howard University Cancer Centre, Division of Epidemiology and Cancer Control, Washington, DC 20060.
J Hum Hypertens. 1993 Oct;7(5):437-41.
BP and urinary sodium and potassium were assessed in 183 African-American, 113 US white and 72 Nigerian college students. SBP was higher in African-American males compared with Nigerian and US white males (123.1, 117.6 and 115.7 mmHg, respectively, P < 0.05). There were no significant differences observed between African-American and white male students in overnight urinary excretion rates of sodium and potassium. In contrast, African-American females excreted more sodium (41.0 vs. 31.3 mEq per 8 hours, P < 0.01) and potassium (12.0 vs. 8.9 mEq per 8 hours, P < 0.05) compared with white females. Only among the white students was a significant sex difference observed in urinary electrolyte excretion rates, where males excreted at higher rates than females. Multiple regression models for the African-Americans revealed that potassium explained only 4% of the SBP variance. Among the US whites and Nigerians, sodium explained 4.9% and 6.8%, respectively, of the DBP variance.
对183名非裔美国大学生、113名美国白人大学生和72名尼日利亚大学生的血压、尿钠和尿钾进行了评估。非裔美国男性的收缩压高于尼日利亚男性和美国白人男性（分别为123.1 mmHg、117.6 mmHg和115.7 mmHg，P<0.05）。非裔美国男学生和白人男学生在夜间尿钠和尿钾排泄率方面未观察到显著差异。相比之下，非裔美国女性比白人女性排泄更多的钠（每8小时41.0 mEq对31.3 mEq，P<0.01）和钾（每8小时12.0 mEq对8.9 mEq，P<0.05）。仅在白人学生中观察到尿电解质排泄率存在显著的性别差异，男性排泄率高于女性。针对非裔美国人的多元回归模型显示，钾仅解释了收缩压方差的4%。在美国白人和尼日利亚人中，钠分别解释了舒张压方差的4.9%和6.8%。
