Abstract:
BACKGROUND:Minimal clinically important difference (MCID) is determined when a patient or physician defines the minimal change that outweighs the costs and untoward effects of a treatment. These measurements are "anchored" to validated quality-of-life instruments or physician-rated, disease-activity indices. To capture the subjective clinical experience in a measurable way, there is an increasing use of MCID. OBJECTIVE:To review the overall concept, method of calculation, strengths, and weaknesses of MCID and its application in the neurosurgical literature. METHODS:Recent articles were reviewed based on PubMed query. To illustrate the strengths and limitations of MCID, studies regarding the measurement of pain are emphasized and their impact on subsequent publications queried. RESULTS:MCID varies by population baseline characteristics and calculation method. In the context of pain, MCID varied based on the quality of pain, chronicity, and treatment options. CONCLUSION:MCID evaluates outcomes relative to whether they provide a meaningful change to patients, incorporating the risks and benefits of a treatment. Using MCID in the process of evaluating outcomes helps to avoid the error of interpreting a small but statistically significant outcome difference as being clinically important.
journal_name
Neurosurgeryjournal_title
Neurosurgeryauthors
Zervos TM,Asmaro K,Air ELdoi
10.1093/neuros/nyaa490subject
Has Abstractpub_date
2020-12-28 00:00:00eissn
0148-396Xissn
1524-4040pii
6053822pub_type
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