Babu T N, Nazir F, Rao D B, Luisada A A
Geriatrics. 1977 Jan;32(1):73-6.
Blood pressure was studied in two groups of institutionalized subjects ranging in age from 50 to over 100 years. The first group comprised 199 selected normal subjects; subjects with any disease, including systemic hypertension, were excluded. The second group consisted of 947 unselected subjects; those with acute illness were excluded. In the first group, systolic pressure increased slightly, but diastolic pressure did not change with increasing age. The blood pressures were still within the limits that were considered normal for younger persons. In the second group, both the systolic and the diastolic pressures progressively decreased with age, so that the former fell below normal limits.
对两组年龄在50岁至100多岁的机构养老人员进行了血压研究。第一组包括199名经过挑选的正常受试者；排除了患有任何疾病（包括系统性高血压）的受试者。第二组由947名未经挑选的受试者组成；排除了患有急性疾病的受试者。在第一组中，收缩压略有上升，但舒张压并未随年龄增长而变化。血压仍在较年轻人群正常范围之内。在第二组中，收缩压和舒张压均随年龄增长而逐渐下降，以至于收缩压降至正常范围以下。
