Prediction Model for COVID-19 Vaccination Intention among the Mobile Population in China: Validation and Stability

Vaccines

Yaqi Chen¹  Kechun Zhang¹  Tian Hu¹  Meili Shang²  Fan Hu³  Yong Cai³  Yexin Chen³  Jinxin Zhang³  Ruijie Gong³ 

[1] Longhua Center for Disease Control and Prevention, Shenzhen 518100, China;Sanlin Community Health Service Center, Shanghai 200124, China;School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China;

关键词: COVID-19;    vaccination intention;    nomogram;    prediction model;    model validation;   

DOI  :  10.3390/vaccines9111221

来源: DOAJ

【 摘 要 】

Since China’s launch of the COVID-19 vaccination, the situation of the public, especially the mobile population, has not been optimistic. We investigated 782 factory workers for whether they would get a COVID-19 vaccine within the next 6 months. The participants were divided into a training set and a testing set for external validation conformed to a ratio of 3:1 with R software. The variables were screened by the Lead Absolute Shrinkage and Selection Operator (LASSO) regression analysis. Then, the prediction model, including important variables, used a multivariate logistic regression analysis and presented as a nomogram. The Receiver Operating Characteristic (ROC) curve, Kolmogorov–Smirnov (K-S) test, Lift test and Population Stability Index (PSI) were performed to test the validity and stability of the model and summarize the validation results. Only 45.54% of the participants had vaccination intentions, while 339 (43.35%) were unsure. Four of the 16 screened variables—self-efficacy, risk perception, perceived support and capability—were included in the prediction model. The results indicated that the model has a high predictive power and is highly stable. The government should be in the leading position, and the whole society should be mobilized and also make full use of peer education during vaccination initiatives.

【 授权许可】

Unknown