Zhongguo quanke yixue (Nov 2022)
The Relationship between Sleeping Time and Falls in Middle-aged and Elderly Residents over 45 Years in China
Abstract
Background There are few studies on the relationship between sleep time and falls at present, and the research results are inconsistent. Objective To explore the relationship between sleeping time and falls in middle-aged and elderly residents in China, and to provide reference for preventing falls in this population. Methods The study based on the data from China Health and Retirement Longitudinal Survey (CHARLS) data in 2015. 18 181 subjects aged ≥45 years with complete key data were included. Collect the indicators of the middle-aged and old people in the past two years, such as falls and medical treatment, sleep time, demographic characteristics, behavior and lifestyle, health status, self-life satisfaction and self-rated health. The subjects were divided into 5 groups according to the sleep time per night: <5 h (2 945 cases) , 5-<6 h (2 755 cases) , 6-<7 h (reference group, 3 824 cases) , 7 to <8 hours (3 257 cases) and ≥8 hours (5 400 cases) . Logistic regression model was used to adjust different variables to gradually evaluate the relationship between sleep time and the occurrence of falls and medical treatment for falls in the past two years. Results The average sleeping time of middle-aged and elderly people was (6.4±1.9) hours, the incidence of falls in the past two years was 17.01% (3 092/18 181) , and the rate of medical treatment for falls was 6.95% (1 264/18 181) . The incidence of falls in subjects with sleep time <5 h, 5-<6 h, 6-<7 h, 7-<8 h and≥8 h were 25.26% (744/2 945) , 19.82% (546/2 755) , 15.51% (593/3 824) , 14.03% (457/3 257) , 13.93% (752/5 400) , the incidence of falling to hospital was 10.97% (323/2 945) , 8.09% (223/2 755) , 6.04% (231/3 824) , 5.43% (177/3 257) and 5.74% (310/5 400) , which were significant differences demonstrated by the trend chi-square test, and the difference was statistically significant (P<0.05) . Compared with 6-<7 hours after adjusting factors such as age, gender, those with sleeping time ≥8 hours had a significantly lower risk of falling〔OR (95%CI) =0.88 (0.78, 0.99) 〕, and those with sleeping time <5 h and 5-<6 h had a significantly higher risk of falling〔OR (95%CI) <5 h=1.31 (1.16, 1.49) , OR (95%CI) 5-<6 h=1.14 (1.00, 1.30) 〕. The middle-aged and old people who slept less than 5 hours per night had a higher risk of falling and seeking medical treatment〔OR (95%CI) =1.30 (1.08, 1.56) 〕. Conclusion The incidence of falls in middle-aged and elderly people in China is relatively high, sleep time <6 hours per night will increase the risk of falls, and sleeping≥8 hours may reduce the risk of falls. Adjusting sleeping time of middle-aged and elderly people and strengthening lifestyle intervention can effectively reduce the incidence of falls in the middle-aged and elderly people.
Keywords
