A critical appraisal of standard guidelines for grading levels of evidence.

@article{Gugiu2010ACA,
  title={A critical appraisal of standard guidelines for grading levels of evidence.},
  author={P. Cristian Gugiu and Mihaiela Ristei Gugiu},
  journal={Evaluation & the health professions},
  year={2010},
  volume={33 3},
  pages={233-55}
}
Over the past 30 years, a general consensus has emerged within the medical community regarding the essential role served by grading guidelines in evaluating the quality of evidence produced by a medical research study. Specifically, consensus exists regarding the hierarchy of evidence, where randomized controlled trials (RCTs) are considered the ''gold standard'' followed by nonrandomized controlled trials (non-RCTs) and uncontrolled trials. As guidelines have become more sophisticated… CONTINUE READING

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