Abstract: Objective To understand the status and influencing factors of chronic disease prevention and control literacy of residents in Suzhou City,provide scientific basis for the prevention and control of chronic disease in this area. Methods From August to October 2021,3 000 permanent residents aged 15-69 years old in Suzhou City were selected by probability proportionate to size sampling（PPS） method. The data were analyzed by χ² test,logistic regression analysis,and nomogram. Results A total of 3 000 questionnaires were distributed,of which 225 were lost,2 775 were recovered,and 2 673 were valid,with the effective rate of 96.32%. The proportion of residents with qualified literacy level of chronic disease prevention and treatment was 24.39%,among which the level of chronic disease prevention and control literacy of residents aged 60-69 years old was the lowest,which was 13.49%. The higher the education level and the higher the income,the higher the chronic disease prevention and control literacy level of residents. For the occupations,the level of chronic disease prevention and control literacy of farmers was the lowest,which was 11.99%. The level of chronic disease prevention and control literacy of residents with one or more chronic diseases was lower than that of residents without chronic diseases,which was 16.48% and 17.95% respectively,and the difference was statistically significant（all P<0.05）. The multivariate logistic regression analysis showed that the 15-<45 age group was taken as the reference,and the 45-<60 age group had a relatively high level of literacy in chronic disease prevention and control,with an OR value of 1.797（95%CI：1.268-2.547）. In terms of occupation,taking civil servants as reference,the level of chronic disease prevention and control literacy of medical staff,staff of other public institutions and staff of other enterprises was relatively high,with OR values of 1.806（95%CI：1.019-3.201）,2.620（95%CI：1.325-5.181） and 1.372（95%CI：1.073-1.755）,respectively. The nomogram showed that high age groups,low education level and farmers were the main risk factors for chronic disease prevention and control literacy level. Conclusions The overall level of chronic disease prevention and control literacy of residents in Suzhou City is low,among which the high age group,residents with low education level and farmers have low literacy level. It is suggested that appropriate publicity methods should be adopted to popularize the knowledge and skills of chronic disease prevention,so as to improve the level of chronic disease prevention and control literac of residents in Suzhou City and further prevent and control chronic diseases.

Key words: Chronic diseases, Health literacy, Influencing factors