Correlation Analysis Of Sleep Quality Status With Cognitive Function And Dietary Intake In Rural Elderly People In Jiaozhou City

Objective:Based on the group’s previous exploration of cognitive function and dietary patterns,this study investigated the association between sleep quality and cognitive function by investigating the current status of cognitive function and sleep quality in rural elderly people,and further analyzed the correlation between sleep quality and dietary intake by investigating the dietary intake of rural elderly people to provide a basis for the next epidemiological study and clinical trials.Methods:A questionnaire was used to investigate the general conditions,sleep quality,dietary intake,and cognitive status of 1167 older adults over 65 years in a randomized whole-group sample of 18 villages.General conditions included gender,age,education,marital status,smoking,alcohol consumption,income,housing status,and chronic diseases.The Mini-mental State Examination(MMSE)was used to measure the cognitive function of the population.The cognitive function of the population was measured using MMSE,and the scores of the 5 dimensions and the total score were calculated separately.The Pittsburgh Sleep Quality Index(PSQI)scale was used to measure the sleep status of the population,and the scores of the 7 dimensions and the total score were calculated separately;the Food Frequency Questionnaire(FFQ)was used to investigate the dietary intake of the population over a 3-month period,and the food was divided into 16 major categories(rice and flour,cereals,potatoes,mixed beans,vegetables,onions and garlic,fruits,livestock,poultry,fish,shrimps and crabs,eggs,dairy,soybeans and their products,nuts,pickles and tea).The seven dimensions of PSQI were analyzed by exploratory factor analysis to extract the sleep structure.The nonparametric test was used to verify the relationships between diet and sleep unidimensionally,sleep and cognition unidimensionally,sleep patterns(SPs)and cognition and diet.Spearman correlation analysis and multiple logistic regression were used to analyze the relationship between SPs and cognition.Results:1.1167 participants were included in this study.Of these,44.5% were male,45.2%were illiterate,and 19.1% had junior high school or higher education.The PSQI total score range for older adults in the region was 0-5 for 76.3%,6-10 for 18.6%,and 11 or more for 5.1%.23.7% of all older adults had a PSQI total score of 5 or more.2.Two sleep patterns were extracted based on factor analysis.sp1 was characterized by long sleep onset,short sleep duration,and low sleep efficiency;sp2 was characterized by poor subjective sleep quality,many sleep disturbances,daytime dysfunction,and hypnotic drugs.3.Statistically significant differences were found between SP 2 and total MMSE score,memory,recall,and language(P = 0.006,0.001,0.033,0.019),whereas no statistical differences were found between SP 1 and cognitive function.The results of the regression analysis were similar to those of the univariate analysis.Using the Q1 group of SP 2 as a reference,after adjusting for covariates(gender and age)(model 2),subjects in the Q2 group showed improvements in recall ability(OR: 1.22;95% CI: 1.08,1.36),language ability(OR: 1.09;95% CI: 1.02,1.16),and total MMSE score(OR: 1.03;95%CI: 1.06)respectively,with a significant decrease in memory in the Q3 group(OR: 0.75;95% CI: 0.61,0.92).Also,after adjusting for all general variables except education and income(model 4),the results of the regression analysis were the same as in model 2.4.The results of the analysis between sleep dimensions and food groups showed that subjective sleep quality was associated with the intake of onion and garlic and soybean and their products;sleep latency was associated with the intake of cereals,fish,shrimp and crab,soybean and their products;sleep duration was associated with the intake of potatoes,poultry,soybean and their products and nuts;sleep efficiency was associated with the intake of potatoes,onion and garlic,soybean and their products,nuts and tea;sleep disturbance was associated with The total PSQI score was associated with the rice and noodle category(P < 0.05).5.There was a statistical difference between SP1 and potatoes and eggs(P < 0.05);SP2 and rice flour and soybean and their products(P < 0.05).There was also a negative correlation between SP1 and eggs(P < 0.003)and a positive correlation between SP1 and both rice and noodles and soybeans and their products(P < 0.003).there was a statistical difference between SP1 and vitamin C,total vitamin E,sodium,calcium,zinc and copper(P < 0.05);there was a statistical difference between SP2 and carbohydrates,total vitamin E,sodium,manganese and selenium(P < 0.05).Conclusion:1.Poorer subjective sleep quality,sleep disturbances i.e.more sleep disturbances,more daytime dysfunction,and use of more hypnotic drugs can affect cognitive function in older adults.2.Rice and flour,cereals,potatoes,soybeans and their products,nuts,fish,shrimp and crab,poultry,eggs,vegetables,onions and garlic,and tea are all foods that affect the quality of sleep,of which,ensuring the right amount of high-quality carbohydrates,soybeans and their products,nuts,fish,shrimp and crab,and vegetable food intake can improve the quality of sleep of the elderly.