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Table 2 Quantitative distribution and proportions of the publications according to the document types and study design

From: Publication trends in corneal transplantation: a bibliometric analysis

Year

OA & CR

Letter

MA

Review

Correction

Total

2006

133 (85 %)

12 (7.5 %)

6 (4 %)

4 (2.5 %)

2 (1 %)

157

2007

159 (79 %)

28 (14 %)

6 (3 %)

7 (3.5 %)

1 (0.5 %)

201

2008

183 (77 %)

39 (16.5 %)

11 (5 %)

3 (1 %)

1 (0.5 %)

237

2009

212 (83 %)

30 (12 %)

4 (1.5 %)

7 (3 %)

2 (0.5 %)

255

2010

212 (84.5 %)

34 (13.5)

0 (0 %)

5 (2 %)

0 (0 %)

251

2011

253 (73.5 %)

77 (22 %)

7 (2 %)

6 (2 %)

2 (0.5 %)

345

2012

246 (75.5 %)

52 (16 %)

10 (3 %)

15 (4.5 %)

3 (1 %)

326

2013

236 (72 %)

48 (14.5 %)

29 (9 %)

12 (3.5 %)

3 (1 %)

328

2014

216 (75 %)

31 (10.5 %)

23 (8 %)

19 (6.5 %)

0 (0 %)

289

2015

214 (63.5 %)

41 (12 %)

73 (21.5 %)

5 (1.5 %)

4 (1.5 %)

337

  1. OA original articles, CR case reports, MA meeting abstracts