Chinese Longitudinal Healthy Longevity Survey (CLHLS), 1998-2014

The Chinese Longitudinal Healthy Longevity Survey (CLHLS) provides information on health status and quality of life of the elderly aged 65 and older in 22 provinces of China in the period 1998 to 2014. The study was conducted to shed light on the determinants of healthy human longevity and oldest-old mortality. To this end, data were collected on a large percent of the oldest population, including centenarian and nonagenarian; the CLHLS provides information on the health, socioeconomic characteristics, family, lifestyle, and demographic profile of this aged population. Data are provided on respondents' health conditions, daily functioning, self-perceptions of health status and quality of life, life satisfaction, mental attitude, and feelings about aging. Respondents were asked about their diet and nutrition, use of medical services, and drinking and smoking habits, including how long ago they quit either or both. They were also asked about their physical activities, reading habits, television viewing, and religious activities, and were tested for motor skills, memory, and visual functioning. In order to ascertain their current state of health, respondents were asked if they suffered from such health conditions as hypertension, diabetes, heart disease, stroke, cancer, emphysema, asthma, tuberculosis, cataracts, glaucoma, gastric or duodenal ulcer, arthritis, Parkinson's disease, bedsores, or other chronic diseases. Respondents were further queried about assistance with bathing, dressing, toileting, or feeding, and who provided help in times of illness. Other questions focused on siblings, parents, and children, the frequency of family visits, and the distance lived from each other. Demographic and background variables include age, sex, ethnicity, place of birth, marital history and status, history of childbirth, living arrangements, education, main occupation before age 60, and sources of financial support.

中国纵向健康长寿调查（CLHLS）提供了关于1998年至2014年间中国22个省份65岁及以上老年人健康状况和生活质量的信息。该研究旨在揭示健康人类长寿及其百岁及以上死亡率的决定因素。为此，对包括百岁老人和九旬老人在内的较大比例的最老龄人口进行了数据收集；CLHLS提供了有关该年龄群体健康状况、社会经济特征、家庭、生活方式和人口统计概况的信息。数据涵盖了受访者的健康状况、日常生活功能、对健康状况和生活质量的自我感知、生活满意度、心理态度以及对老龄化的感受。受访者被询问其饮食和营养、医疗服务的使用、饮酒和吸烟习惯，包括他们何时停止了其中一种或两种习惯。他们还被询问其身体活动、阅读习惯、电视观看习惯和宗教活动，并对其运动技能、记忆和视觉功能进行了测试。为了确定他们的当前健康状况，受访者被问及他们是否患有高血压、糖尿病、心脏病、中风、癌症、肺气肿、哮喘、结核病、白内障、青光眼、胃或十二指肠溃疡、关节炎、帕金森病、褥疮或其他慢性疾病等健康问题。受访者还被进一步询问关于洗澡、穿衣、如厕或进食的协助，以及在生病时提供帮助的人。其他问题集中在兄弟姐妹、父母和子女上，家庭访问的频率以及他们之间的居住距离。人口统计和背景变量包括年龄、性别、种族、出生地、婚姻史和状况、生育史、居住安排、教育、60岁之前的主要职业以及财务支持来源。