Koh GC, Chen CH, Petrella R, Thind A Rehabilitation impact indices and their independent predictors: a systematic review. BMJ Open. 2013 Sep 24;3(9):e003483. doi: 10.1136/bmjopen-2013-003483.
Kwon S, Hartzema AG, Duncan PW, Min-Lai S Disability measures in stroke: relationship among the Barthel Index, the Functional Independence Measure, and the Modified Rankin Scale. Stroke. 2004 Apr;35(4):918-23. doi: 10.1161/01.STR.0000119385.56094.32. Epub 2004 Feb 19.
Paneroni M, Simonelli C, Vitacca M, Ambrosino N Aerobic Exercise Training in Very Severe Chronic Obstructive Pulmonary Disease: A Systematic Review and Meta-Analysis. Am J Phys Med Rehabil. 2017 Aug;96(8):541-548. doi: 10.1097/PHM.0000000000000667.
Pedersen AR, Nielsen JF, Jensen J, Maribo T Referral decision support in patients with subacute brain injury: evaluation of the Rehabilitation Complexity Scale - Extended. Disabil Rehabil. 2017 Jun;39(12):1221-1227. doi: 10.1080/09638288.2016.1189610. Epub 2016 Jul 6.
Roda F, Agosti M, Corradini E, Lombardi F, Maini M, Brianti R Cross-cultural adaptation and preliminary test-retest reliability of the Italian version of the Complexity Rehabilitation Scale-Extended (13th version). Eur J Phys Rehabil Med. 2015 Aug;51(4):439-46. Epub 2014 Mar 4.
Turner-Stokes L, Disler R, Williams H The Rehabilitation Complexity Scale: a simple, practical tool to identify 'complex specialised' services in neurological rehabilitation. Clin Med (Lond). 2007 Dec;7(6):593-9. doi: 10.7861/clinmedicine.7-6-593.
Turner-Stokes L, Scott H, Williams H, Siegert R The Rehabilitation Complexity Scale--extended version: detection of patients with highly complex needs. Disabil Rehabil. 2012;34(9):715-20. doi: 10.3109/09638288.2011.615880. Epub 2011 Nov 24.
Turner-Stokes L, Sutch S, Dredge R, Eagar K International casemix and funding models: lessons for rehabilitation. Clin Rehabil. 2012 Mar;26(3):195-208. doi: 10.1177/0269215511417468. Epub 2011 Nov 9.
Turner-Stokes L, Williams H, Siegert RJ The Rehabilitation Complexity Scale version 2: a clinimetric evaluation in patients with severe complex neurodisability. J Neurol Neurosurg Psychiatry. 2010 Feb;81(2):146-53. doi: 10.1136/jnnp.2009.173716. Epub 2009 Jul 8.
The Rehabilitation Complexity Scale (RCS) in Pulmonary Rehabilitation: Utility and Limitations
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.
