Hospitalization — Unnecessary, Avoidable Lengths of Stay: a Strategy for Clinician Empowerment and Effectiveness Evaluation
Citation(s)
Carey MR, Sheth H, Braithwaite RS A prospective study of reasons for prolonged hospitalizations on a general medicine teaching service. J Gen Intern Med. 2005 Feb;20(2):108-15.
Moro ML Health care-associated infections. Surg Infect (Larchmt). 2006;7 Suppl 2:S21-3. Review.
Selker HP, Beshansky JR, Pauker SG, Kassirer JP The epidemiology of delays in a teaching hospital. The development and use of a tool that detects unnecessary hospital days. Med Care. 1989 Feb;27(2):112-29. Erratum in: Med Care 1989 Aug;27(8):841.
Shojania KG, Wald H, Gross R Understanding medical error and improving patient safety in the inpatient setting. Med Clin North Am. 2002 Jul;86(4):847-67. Review.
Unnecessary, Avoidable Lengths of Stay: a Strategy for Clinician Empowerment and Effectiveness Evaluation
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.
