Table 1.
Means and standard deviations for number of paragraphs per section.
Modified from Albert [2], Fig 5.1.
Fig 1.
Forest plots from meta-analyses.
Pooled means of number of paragraphs (black squares) and 95% confidence intervals (CI, lines) are displayed for each journal for A) methods section in 2005, B) methods section in 2010, C) methods section in 2015 and D) the total number of paragraphs in 2015, respectively. Summary statistics (black diamond) was calculated using the random effects DerSimonian & Laird approach [14]. BMJ: The BMJ, JAMA: The Journal of the American Medical Association, NEJM: The New England Journal of Medicine, PLOS: PLOS Medicine.
Table 2.
Results of meta-analyses per year over journal.
Table 3.
Results of meta-analyses per journal over years.