Distribution of observations across levels of independent variables included in models of Methodological Standards Reporting and Regulatory Compliance Reporting indices in 490 amyotrophic lateral sclerosis studies
Variable | Level | n | Percentage |
Year | 2005 | 77 | 13.58 |
2007 | 81 | 14.29 | |
2009 | 83 | 14.64 | |
2011 | 106 | 18.69 | |
2013 | 115 | 20.28 | |
2015 | 105 | 18.52 | |
Study type | Concept | 460 | 81.13 |
Preclinical | 107 | 18.87 | |
Country | Australia | 14 | 2.47 |
Belgium | 14 | 2.47 | |
Canada | 29 | 5.11 | |
China | 28 | 4.94 | |
France | 18 | 3.17 | |
Germany | 25 | 4.41 | |
Israel | 18 | 3.17 | |
Italy | 50 | 8.82 | |
Japan | 65 | 11.46 | |
Other | 43 | 7.58 | |
South Korea | 25 | 4.41 | |
Spain | 15 | 2.65 | |
Sweden | 12 | 2.12 | |
UK | 23 | 4.06 | |
USA | 188 | 33.16 | |
Journal | Brain | 9 | 1.59 |
Brain Res | 20 | 3.53 | |
Eur J Neurosci | 8 | 1.41 | |
Exp Neurol | 31 | 5.47 | |
Front Cell Neurosci | 12 | 2.12 | |
Hum Mol Gen | 24 | 4.23 | |
J Biol Chem | 19 | 3.35 | |
J Neurochem | 15 | 2.65 | |
J Neuroinflamm | 9 | 1.59 | |
J Neurosci | 20 | 3.53 | |
J Neurosci Res | 9 | 1.59 | |
Mol Neurodegener | 8 | 1.41 | |
Neurobiol Dis | 34 | 6.00 | |
Neurosci | 15 | 2.65 | |
Other | 271 | 47.80 | |
PLOS One | 45 | 7.94 | |
Proc Natl Acad Sci USA | 18 | 3.17 | |
Severity | 1 | 14 | 2.5 |
2 | 20 | 3.5 | |
3 | 46 | 8.1 | |
4 | 346 | 60.8 | |
5 | 64 | 11.2 | |
Inconclusive | 79 | 13.9 |