Tag Sasha Vaziri

Summary of Key Points Confounders in clinical investigation are systematic errors that cause a tendency toward erroneous results. The two major forms of bias in retrospective studies are selection bias and missing data. Case-control studies are used to identify factors…

Summary of Key Points Axial low back pain is a common clinical problem with a significant healthcare impact. The pathophysiology and underlying etiology of axial low back pain remain poorly defined. The diagnosis of axial low back pain is largely…