[Analysis of the core knowledge level of chronic diseases in Chinese adults and related factors].

Objective: To understand the core knowledge level and influencing factors of chronic disease prevention and control in Adults in China, and to provide a scientific basis for formulating chronic disease prevention and control measures. Methods: In this study, cross-sectional survey and quota sampling were used to recruit 173 819 permanent residents aged 18 and above from 302 counties of adult chronic diseases and nutrition surveillance in China to conduct an online questionnaire survey, including basic information and core knowledge of chronic diseases. The scores of the core knowledge of chronic disease prevention and control were described by median and interquartile range, the Wilcoxon rank sum test or the Kruskal Wallis test was used for the inter-group comparison, and the correlation factors of the total score were analyzed by the multilinear regression model. Results: A total of 172 808 participants were surveyed in 302 counties and districts, of which 42.60%(73 623) were male and 57.40%(99 185) were female; The proportion of respondents aged 18-44, 45-59, and 60 years old and above was 54.74% (94 594), 30.91% (53 423) and 14.35% (24 791), respectively. The total score of the core knowledge of chronic prevention and control in the total population was 66(13), and the scores of different characteristic groups were different, and the differences were statistically significant: the eastern region had the highest score at 67(11) (H=840.66, P<0.01), the urban 66(12) was higher than the rural 65(14) (Z=-31.35, P<0.01), and the male 66(14) was lower than female 66(12) (Z=-11.66, P<0.01), 18-24 years old 64(13) was lower than other age groups(H=115.80, P<0.01), and undergraduate degree and above had the highest score compared to other academic qualifications, with 68(9) points(H=2 547.25, P<0.01). Multivariate analysis showed that eastern (t=27.42, P<0.01), central (t=17.33, P<0.01), urban (t=5.69, P<0.01), female (t=17.81, P<0.01), high age (t=46.04, P<0.01) and high education (t=57.77, P<0.01) had higher scores of core knowledge of chronic disease prevention and control than other groups, the scores of core knowledge of chronic disease prevention and control of professional and technical personnel (t=8.63, P<0.01), state enterprises and institutions (t=38.67, P<0.01), agriculture, forestry, animal husbandry, fishery and water conservancy production (t=5.30, P<0.01), production, transportation and commercial personnel (t=24.87, P<0.01), and other workers (t=8.89, P<0.01) were higher than those of non-employed people. Conclusion: There are differences in the total scores of the core knowledge of chronic disease prevention and control in different characteristics of people in China, and in the future, health education on the prevention and treatment of chronic diseases should be strengthened for specific groups to improve the knowledge level of residents.目的： 了解中国成人慢性病防控核心知识掌握水平及影响因素，为制定慢性病防控措施提供科学依据。 方法： 采用横断面调查和配额抽样方法，2021年3—4月期间，在中国成人慢性病与营养监测302个县区招募173 819名18岁及以上常住居民进行线上问卷调查，内容包括基本信息和慢性病核心知识两部分。慢病防控核心知识得分采用中位数（四分位数间距）进行描述，组间比较采用Wilcoxon秩和检验或Kruskal Wallis检验，采用多重线性回归模型分析总得分的相关因素。 结果： 302个县区共调查172 808名研究对象，其中男性占42.60%（73 623人），女性占57.40%（99 185人）；18~44岁、45~59岁、60岁及以上年龄段调查对象比例分别为54.74%（94 594人）、30.91%（53 423人）和14.35%（24 791人）。总人群慢性病防控核心知识总得分为66（13）分，不同特征人群得分不同，差异均有统计学意义：其中东部地区得分最高，为67（11）分（H=840.66，P<0.01），城市66（12）分高于农村65（14）分（Z=-31.35，P<0.01），男性66（14）分低于女性66（12）分（Z=-11.66，P<0.01），18~24岁64（13）分低于其他年龄段（H=115.80，P<0.01），本科及以上相比其他学历者得分最高，为68（9）分（H=2 547.25，P<0.01）。多因素分析显示，东部（t=27.42，P<0.01）、中部（t=17.33，P<0.01）、城市（t=5.69，P<0.01）、女性（t=17.81，P<0.01）、年龄（t=46.04，P<0.01）和文化程度（t=57.77，P<0.01）越高者的慢性病防控核心知识得分较其他人群高；专业技术和办事人员（t=8.63，P<0.01）、国家机关企事业单位人员（t=38.67，P<0.01）、农林牧渔水利业生产人员（t=5.33，P<0.01）、生产运输和商业人员（t=24.87，P<0.01）、其他劳动者（t=8.89，P<0.01）的慢性病防控核心知识得分较未就业人群高。 结论： 我国不同特征人群慢性病防控核心知识总得分存在差异，今后应针对特定人群加强慢性病防治健康教育，以提高居民的知识水平。.