摘要
目的 探讨高龄老年人生存结局的相关影响因素。方法 于2009年对中国7个长寿地区的930名80岁及以上老年人进行基线调查,收集社会经济学、生活方式、认知功能、日常生活自理能力和疾病等资料,并对老年人进行体格测量,检测血液、尿液等生物学指标。在2012、2014年进行两次随访,追踪生存结局。采用Cox比例风险模型逐步回归筛选高龄老年人5年生存结局的影响因素。结果 经过5年的随访,571例高龄老年人死亡,133名失访,死亡率为63.4%。男性、无配偶、自评生活质量较差、日常生活自理能力受限、认知功能受损、心脑血管疾病、慢性肾疾病为高龄老年人生存结局的危险因素,HR(95%CI)值分别为1.75(1.40-2.12)、1.49(1.10-2.03)、1.40(1.16-1.69)、1.37(1.11-1.70)、1.51(1.22-1.88)、1.62(1.18-2.23)和1.48(1.23-1.77);年龄每增加1岁,老年人死亡风险增加4% [HR(95% CI)=1.04(1.02-1.05)]。与不进行身体锻炼的老年人相比,身体锻炼的老年人的死亡风险下降19% [HR(95% CI)为0.81(0.66-0.98)];BMI每增加1 kg/m^2,老年人死亡风险下降5% [HR(95% CI)=0.95(0.93-0.98)];总淋巴细胞计数每增加1.0×10^9/L,老年人死亡风险下降13% [HR(95% CI)=0.87(0.76-0.99)];与TG未升高的老年人相比,TG升高(≥2.26 mmol/L)的老年人死亡风险下降41% [HR(95% CI)=0.59(0.40-0.88)]。结论 在中国长寿地区高龄老年人中,较高水平的BMI、总淋巴细胞计数和TG为其生存的独立保护因素,呈现出不同于一般成年人的特征。
Objective To investigate the influence factors of survival outcome among elderly aged ≥80 years old.Methods In baseline survey in 2009, 930 participants aged ≥80 years old were enrolled from 7 longevity areas, to collect the information of socioeconomic factors, life style, cognitive function, activities of daily living and diseases, as well as physical examination to test biomarkers of blood and urine. The survival status was followed up at 2012 and 2014 survey. Stepwise Cox proportional hazards models were used to screen influence factors of 5-year survival.Results During 5 years of follow-up, 571 participants died, 133 participants were lost to follow up, and the all-cause mortality was 63.4%. In stepwise Cox proportional hazards models, male, unmarried, self-reported poor life quality, disability in daily life, cognitive impairment, cardiovascular and cerebrovascular diseases, chronic kidney diseases were risk factors for elderly survival outcome, with the HR (95%CI) at 1.75 (1.40-2.12), 1.49 (1.10-2.03), 1.40 (1.16-1.69), 1.37 (1.11-1.70), 1.51 (1.22-1.88), 1.62 (1.18-2.23) and 1.48 (1.23-1.77) respectively. Each 1 year increase in age corresponded to 4% increase in mortality risk (HR (95%CI)=1.04 (1.02-1.05)); each 1 kg/m2 increase in BMI corresponded to 5% increase in mortality risk (HR (95%CI)=0.95 (0.93-0.98)); each 1.0×109/L increase in total lymphocyte count (TLC) corresponded to 13% increase in mortality risk (HR (95%CI)=0.87 (0.76-0.99)). Additionally, the mortality risk decreased 19% (HR (95%CI)=0.81 (0.66-0.98)) in participants with regularly physical exercise compared to those without; and the mortality risk decreased 41% (HR (95% CI)=0.59 (0.40-0.88)) in participants with elevated triglycerides (TG, ≥2.26 mmol/L) compared to those without.Conclusion In Chinese longevity areas, some nutritional and immune indices such as relatively higher level of BMI, TLC and TG were independent protective factors for 5-year survival outcome, which was different from general adults and younger elderly
作者
吕跃斌
张娟
罗杰斯
石文惠
殷召雪
苏丽琴
方建龙
王蛟男
施小明
Lyu Yuebin Zhang Juan Luo Jiesi Shi Wenhui Yin Zhaoxue Su Liqin Fang Jianlong Wang Jiaonan Shi Xiaoming(National Institute for Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China)
出处
《中华预防医学杂志》
CAS
CSCD
北大核心
2017年第11期1028-1032,共5页
Chinese Journal of Preventive Medicine
基金
国家自然科学基金(81273160、81573247、71233001、71490732)
联合国人口基金会和美国国立卫生研究院联合资助项目(2P01AG031719)志谢参与本研究现场调查的所有工作人员