BLSA POPULATION DYNAMICS

本项目涉及优化管理和科学 总人口的描述，其中包括，截至1991年8月1日，1138 在职参与者（454名妇女; 684名男子），435名非在职参与者（137名妇女; 298名男子） 523人死亡（39名妇女; 484名男子）。 与BLSA一致 根据指导委员会的建议，NIA现在致力于提供一个样本， 女性的体型与男性相当。 妇女占40%， 总活跃样本，自1978年以来，当妇女首次进入研究， 填补了64%的首次就诊名额。 实现男女人数相等 将需要再招聘200名妇女。 然而直到 为执行这一建议提供了额外资源 （包括空间），男女都将继续招聘 根据1987年确定的样本量长期目标。 （见 项目描述）。 然而，这一目标并没有提供足够的 根据荷尔蒙状态划分女性的数字，而且，由于 由于发病率和死亡率较低，需要更多的妇女提供 终点数量与男性相似。 1991年老年学 美国社会的论文将描述一些性别差异 与高血压患者健康状况相关的人口统计学变量。

This project is concerned with optimal management and scientific description of the total population, which includes, as of 8/1/91, 1138 active participants (454 women; 684 men), 435 inactive (137 women; 298 men), and 523 deceased (39 women; 484 men). Consistent with a BLSA Steering Committee recommendation, the NIA is now committed to a sample size of women equivalent to that of the men. Women comprise 40% of the total active sample and, since 1978, when women first entered the Study, fill 64% of first-visit slots. To achieve equal numbers of men and women will require recruitment of 200 additional women. However, until additional resources are available to carry out this recommendation (including space), both men and women will continue to be recruited according to long range goals for sample size established in 1987. (See Project Description). That goal, however, does not provide adequate numbers for dividing women according to hormonal status, and, because of their lower morbidity and mortality, more women are needed to provide numbers of endpoints similar to those of men. A 1991 Gerontological Society of America paper will describe gender differences in some demographic variables related to health in the presence of hypertension.