中国老年人虚弱指数与死亡风险及队列差异

摘要

利用中国老年人健康长寿影响因素调查（ CLHLS ）2002－2011年跟踪调查数据，通过多种健康指标构建中国老年人虚弱指数，运用增长曲线模型和Cox等比例风险函数的研究方法，对中国老年人虚弱指数和死亡风险及其队列差异进行了深入分析。研究发现，女性虚弱指数比男性高，增长速度也比男性快，但是死亡风险比男性低；出生较晚的队列与出生早的队列相比，虚弱指数会更高，他们的增长程度更快；受教育程度高的老年人虚弱指数低，但是其增长速度却比受教育程度低的老年人要高。%Using the Chinese Longitudinal Healthy Longevity Survey data ( CLHLS ) from 2002 to 2011 , the paper constructed the Frailty Index ( FI ) of Chinese elderly based on multiple health indicators. Growth Curve Model and Cox proportional hazard model were used to investigate the relationship between frailty index and mortality. The results showed that female elderly were associated with higher level of frailty and faster rate of increase in the Frailty Index but lower mortality risk with age than male. The recent cohorts had higher level and faster growth rate of frailty index than earlier cohorts. Elderly with higher education had lower level of frailty but steeper increasing rate of FI than those with lower education.