Disease-modifying therapies for nonrelapsing multiple sclerosis: Absence of evidence does not constitute evidence of absence
نویسندگان
چکیده
منابع مشابه
Absence of evidence is not evidence of absence.
Randomized controlled clinical trials are conducted to determine whether differences of clinical importance exist between selected treatment regimens. When statistical analysis of the study data finds a P value greater than 5%, it is convention to deem the assessed difference nonsignificant. Just because convention dictates that such study findings be termed nonsignificant, or negative, howev...
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It is with great interest that we read the recent systematic review by BELL et al. [1] concerning the effects of oxygen therapy on dyspnoea and exercise capacity in patients with interstitial lung disease (ILD). The authors report that, while supplemental oxygen increases exercise capacity, it does not improve dyspnoea. Overall, this is a well-executed systematic review that accurately reflects...
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ژورنال
عنوان ژورنال: Neurology: Clinical Practice
سال: 2013
ISSN: 2163-0402,2163-0933
DOI: 10.1212/01.cpj.0000436215.95884.89