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Table 1 Baseline characteristics of abstracts

From: Publication bias in gastroenterological research – a retrospective cohort study based on abstracts submitted to a scientific meeting

 

CCT N (%)

OCR N (%)

BSS N (%)

total N

total sampled

326

455

219

1,000

descriptive studies (excluded)

-

119

45

164

total in analysis

326

336

174

836

acceptance of abstract

    

   accepted

227 (70)

214 (64)

101 (58)

542

   rejected

99 (30)

122 (36)

73 (42)

294

country region of origin

    

   US/Canada

88 (27)

128 (38)

95 (55)

311

   NW-Europe/Australia

138 (42)

107(32)

34 (20)

279

   SE-Europe/Mediterranean

52 (16)

44(13)

9(5)

105

   other

48 (15)

57(17)

36(21)

141

number of study centers

    

   1–2

280 (86)

324 (96)

173 (99)

777

   >3

46 (14)

12 (12)

1(1)

59

statistical significance

    

   positive

140 (43)

149 (44)

65 (37)

354

   negative

99 (30)

41 (12)

7(4)

147

   equivocal

87 (27)

146 (44)

102 (59)

335