The PHREG procedure in SAS/STAT software performs regression analysis of survival or duration data based on the Cox proportional hazards model. Cox's semiparametric model is widely used in the ...

Aims Previous studies have suggested an association between retinal artery occlusion (RAO) and ischaemic stroke (IS), both associated with elevated inflammatory factors. However, the role of ...

Pancreatic ductal adenocarcinoma (PDAC) is an aggressive malignancy characterized by distinct histological subtypes and a poor prognosis. Among these, the micropapillary pattern, typically observed ...

However, traditional statistical models, such as logistic regression and Cox proportional hazards regression, often face ...