10.2.1
Publication bias
Introductory
text
Figure
10.2.a: Cumulative full publication of results initially presented as
abstracts from 45 studies reporting time to publication
that followed up research presented at meetings and conferences
Table
10.2.a: Publication status of five cohorts of research projects approved
by ethics committees or institutional review boards which had been completed
and analysed at the time of follow up. (Adapted from
Hopewell et al, (Hopewell 2008)).
Figure
10.2.b: Publication bias in clinical trials due to statistical significance
or direction of trial results (adapted from Hopewell et al. (Hopewell
2008)).
10.2.1.1
Time lag bias
10.2.1.2
Who is responsible for publication bias?
10.2.1.3
The influence of external funding and commercial interests