2020
DOI: 10.1007/s00330-019-06568-z
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Publication bias in diagnostic imaging: conference abstracts with positive conclusions are more likely to be published

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Cited by 27 publications
(25 citation statements)
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“…"spin") in primary DTA studies, 27,32 whereby manuscripts might be rejected on the basis of having inappropriately positive conclusion. Accordingly, we observed a large proportion of submitted abstracts and manuscripts with positive conclusions, disproportionate to those with high accuracy estimates-as documented in prior work 23,33,34 which indicates an element of "spin" among submitted materials and further suggests that publication bias may be attributable to presubmission factors. This is also consistent with prior evidence that negative conclusions in imaging DTA studies were associated with longer time from study completion to submission but not from submission to Qualitative values expressed as: number of abstracts (percentage).…”
Section: Discussionsupporting
confidence: 80%
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“…"spin") in primary DTA studies, 27,32 whereby manuscripts might be rejected on the basis of having inappropriately positive conclusion. Accordingly, we observed a large proportion of submitted abstracts and manuscripts with positive conclusions, disproportionate to those with high accuracy estimates-as documented in prior work 23,33,34 which indicates an element of "spin" among submitted materials and further suggests that publication bias may be attributable to presubmission factors. This is also consistent with prior evidence that negative conclusions in imaging DTA studies were associated with longer time from study completion to submission but not from submission to Qualitative values expressed as: number of abstracts (percentage).…”
Section: Discussionsupporting
confidence: 80%
“…Sample size calculation was performed based on prior work 23,24,31 targeting a power of 80% in detecting a minimum OR of 1.2 for the primary variables (based on consensus among investigators a 20% relative difference in odds of acceptance for conference presentation or journal publication was deemed to be the smallest relevant difference). We aimed to include an approximately equal proportion of abstracts/manuscripts from each participating conference/journal.…”
Section: Sample Size Calculationmentioning
confidence: 99%
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“…Although formal testing using Egger's regression and inspecting the funnel plots showed no evidence of publication bias, we cannot exclude the possibility of this effect, as nearly all of our included studies had reported significant results. Furthermore, we excluded non-English articles and conference abstracts from our meta-analysis, and it is more likely for a nonsignificant finding to be published only as a conference abstract [ 68 ] or in a local non-English journal [ 69 ].…”
Section: Discussionmentioning
confidence: 99%
“…These investigations have found that, on average, studies with statistically significant or “positive” results are more likely to be published than null or “negative” studies (Figure 1). Such an association has been observed for randomized and nonrandomized studies of interventions, 6 diagnostic test accuracy studies, 9 prognostic accuracy studies, 10 and qualitative studies 11 . Published randomized trials of health interventions also tend to have larger intervention effect estimates on average than unpublished trials, 12 which suggests that studies with smaller effects might be considered less worthy of publication.…”
Section: Introductionmentioning
confidence: 84%