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Table 2 Time from completion to publication: association with other study characteristics

From: Time to publication among completed diagnostic accuracy studies: associated with reported accuracy estimates

  Studies n (%) Months Median (IQR)
Overalla 471 (100 %) 24 (16–35)
Year of publication   
  <1990 10 (2 %) 26 (17–53)
  1990–1994 15 (3 %) 18 (14–38)
  1995–1999 44 (9 %) 23 (15–36)
  2000–2004 99 (21 %) 26 (18–37)
  2005–2009 243 (52 %) 23 (16–35)
  ≥2010 60 (13 %) 22 (15–35)
Journal impact factor   
  <4 or not available 312 (66 %) 25 (16–37)
  4–9 129 (27 %) 22 (15–33)
  ≥10 30 (6 %) 22 (16–34)
Number of authors   
  <6 170 (36 %) 23 (14–38)
  ≥6 301 (64 %) 24 (17–34)
Continent of first author   
  Africa 32 (7 %) 31 (20–48)
  Asia 125 (27 %) 20 (13–29)
  Europe 183 (39 %) 24 (17–35)
  North America 116 (25 %) 26 (16–39)
  Oceania 10 (2 %) 28 (21–44)
  South America 5 (1 %) 19 (14–50)
Type of test   
  Imaging 229 (49 %) 24 (16–34)
  Other 242 (51 %) 24 (16–37)
Type of data collection   
  Prospective 192 (41 %) 24 (17–34)
  Retrospective 96 (20 %) 25 (15–36)
  Not reported 183 (39 %) 24 (15–38)
Study durationb   
  <13 months 115 (24 %) 24 (15–34)
  13–24 months 139 (30 %) 25 (19–35)
  ≥25 months 216 (46 %) 24 (14–37)
Number of participants   
  <100 208 (44 %) 24 (15–35)
  100–999 232 (49 %) 24 (16–35)
  ≥1000 31 (7 %) 27 (20–39)
  1. aTime from completion to publication missing for 285 of 756 included studies
  2. bStudy duration missing for 1 of 471 studies included in this analysis