Table 2.

Overview of statistical and machine learning techniques for COVID-19 using multimodal data.

Type of data	Technological characteristics	References
CT images, clinical measurements, laboratory tests	Traditional statistical methods, correlation analysis	Xiong et al. [56], Qin et al. [57], Sun et al. [58], Dane et al. [59]
Physiology measurements and physical activities	Random forest model for early detection of COVID-19 infection	Mason et al. [60]
demographics, medications, laboratory tests, CPT and ICD codes	Fusion machine learning model to predict severity of COVID-19	Tariq et al. [61]
CT images and clinical features	Integrative deep learning model for prediction of COVID-19 morbidity and mortality	Ning et al. [51]