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. 2009 Apr 8;9:23. doi: 10.1186/1471-2288-9-23

Table 2.

Distribution of the presented abstracts by study design and direction of results

Published
N (%)
Not Published N (%) Total
N
OR CI 95%

Study design
RCT 284 (62.4) 171 (37.5) 455 1.00
CCT 75 (59.5) 51 (40.5) 126 0.9 0.59 1.33
Results
Positive results 120 (74.5) 41 (25.5) 161 1.00
No reported statistical results 198 (61) 127 (39) 325 0.5 0.4 0.8
Negative/null results 24 (47.1) 27 (52.9) 51 0.3 0.2 0.6
No results 17 (38.6) 27 (61.4) 44 0.2 0.1 0.4
Total 359 222 581