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Table 1 General characteristics of published DRMAs of the abstract

From: Assessment of the abstract reporting of systematic reviews of dose-response meta-analysis: a literature survey

Category by items

All Publications (N = 529)

Word count

245 (212 to 267.5)

 ≤250

307 (58.0%)

 > 250

222 (42.0%)

Structured abstract

 Yes

338 (63.9%)

 No

191 (36.2%)

Number of authors [median (IQR)]

6 (4 to 8)

  ≤ 4

171 (32.3%)

 5 ~  6

125 (23.6%)

 7 ~  8

153 (28.9%)

  > 8

80 (15.1%)

Year of publish

 2011

35 (6.6%)

 2012

44 (8.3%)

 2013

56 (10.6%)

 2014

117 (22.1%)

 2015

120 (22.7%)

 2016

85 (16.0%)

 2017 (up to July-31)

72 (13.6%)

Journals (n = 174 for journal numbers)

 Specialist journal (disease-specific)

365 (69.0%)

 General journal (all diseases)

119 (22.5%)

 Epidemiology or public health

45 (8.5%)

Region of first author

 Asian

350 (66.2%)

 European

129 (24.4%)

 America

47 (8.9%)

 Australia

3 (0.6%)

Funding

 Yes

337 (63.7%)

 No

54 (10.2%)

 Not reported

138 (26.1%)

  1. IQR interquartile range