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首页> 外文期刊>Archives of Internal Medicine >Racial differences in diurnal blood pressure and heart rate patterns: results from the Dietary Approaches to Stop Hypertension (DASH) trial.
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Racial differences in diurnal blood pressure and heart rate patterns: results from the Dietary Approaches to Stop Hypertension (DASH) trial.

机译：在昼夜血压和种族差异心率模式:饮食的结果停止高血压(DASH)试验方法。

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BACKGROUND: Several studies have suggested that blacks, on average, have a blunted decline in nocturnal blood pressure (BP) as compared with nonblacks. It is unknown whether differences in traditional determinants of BP, specifically diet and obesity, account for observed differences in diurnal patterns. METHODS: We conducted an analysis of the Dietary Approaches to Stop Hypertension (DASH) trial that enrolled adults with prehypertension or stage 1 hypertension. At the end of a 3-week run-in period, ambulatory BP monitoring data were obtained on 333 participants, all of whom ate the same diet. Mean ambulatory daytime (6 am-11 pm) and nighttime (11 pm-6 am) systolic BP, diastolic BP, and heart rate (HR) were measured. Dipping was defined as a nighttime drop of less than 10% from mean daytime values. RESULTS: Office BP was similar in blacks and nonblacks, as were 24-hour and daytime BP and HR. However, blacks demonstrated a statistically significant, blunted nocturnal decline in BP and HR. Blacks were significantly more likely than nonblacks to have systolic nondipping (44.9% vs 26.7%, P = .001), diastolic nondipping (20.9% vs 11.6%, P = .03), and HR nondipping (40.9% vs 19.9%, P < .001). These differences persisted after adjustment for site, sex, age, body mass index, alcohol intake, physical activity, office BP (or HR), education, and income. CONCLUSION: Blacks with similar office BP, and who consumed the same diet as nonblacks, had a blunted nocturnal decline in systolic BP, diastolic BP, and HR, even after factors that influence BP were controlled for.
机译：背景:一些研究表明黑人平均下降钝化夜间血压(BP)相比非黑人。传统的英国石油(BP)的决定因素,特别是饮食和肥胖,占观察到的差异昼夜模式。饮食的分析方法来停止成人高血压(DASH)试验了高血压前期或第一阶段高血压。抓捕磨合过程,动态BP333年监测数据得到参与者都吃同样的食物。步白天(6 am-11点)和夜间(11pm-6 am)收缩压、舒张压和心脏率(人力资源)测量。从意味着白天夜间下降不到10%值。和非黑人,24小时,白天BP和人力资源。重要,削弱了英国石油公司和夜间下降人力资源。非黑人收缩压不下降(44.9% vs26.7%, P =措施),舒张期不下降(20.9% vs11.6%, P = 03),人力资源不下降(40.9% vs19.9%, P <措施)。调整后的网站,性别、年龄、身体质量指数、饮酒、体力活动、办公英国石油公司(或人力资源)、教育和收入。黑人有类似办公室BP,消耗非黑人一样的饮食,钝化夜间收缩压下降,舒张压,影响英国石油(BP)和人力资源,即使因素控制了。

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