Analysis of health literacy and inflection point ages of residents aged 15-69 years in Zigong City based on ROC curve
Objective To analyze the inflection point ages of different dimensions of health literacy by receiver operating characteristic curve(ROC curve)method,and to provide reference for improving health literacy of residents.Methods Stratified and multi-stage random sampling method was adopted.In 2021,residents aged 15-69 years in Zigong City were surveyed by the National Residents'Health Literacy Monitoring Questionnaire compiled by China Health Education Center.The inflection point ages of different dimensions of health literacy were analyzed by ROC curve method.Binary Logistic regression was used to verify the prediction effect of inflection point age on health literacy.SPSS 26.0 was used for statistical analysis,and the test level was α=0.05.Results A total of 2 376 people were surveyed,including 1 154(48.6％)males and 1 222(51.4％)females.There were 376(15.8％)people aged 15-35 years,297(12.5％)people aged 35-45 years,1 128(47.5％)people aged 45-60 years,and 575(24.2％)people aged 60 and above.Safety and first aid literacy was the highest at 55.9％,followed by health science literacy at 34.3％,basic medical literacy at 26.5％,infectious disease prevention and control literacy at 13.0％,health information literacy at 10.1％,and chronic disease prevention and control literacy at 3.3％.There was statistical difference in the distribution of health science literacy among different gender groups(x2=6.425,P=0.011),but there was no statistical difference in the distribution of infectious disease prevention literacy,safety and first aid literacy,basic medical literacy,health information literacy and general health literacy among different gender groups(P＞0.05).The inflection point ages of health science literacy,infectious disease prevention and control literacy,chronic disease prevention and control literacy,safety and first aid literacy,basic medical literacy,health information literacy and general health literacy were 48.5,47.5,45.5,53.5,51.5,49.5 and 46.5 years old,respectively.The results of binary Logistic regression model and C-index showed that the inflection point age had predictive value on the change of health literacy.Conclusions To improve health science literacy,we should focus on people who are younger than the inflection point,and focus on residents who are older than the inflection points for other dimensions of health literacy,so as to improve the overall level of health literacy.
万方数据
维普
