A Dehmoobad Sharifabadi1, D A Korevaar2, T A McGrath1, N van Es3, R A Frank1, L Cherpak1, W Dang1, J P Salameh4, F Nguyen1, C Stanley5, M D F McInnes6. 1. Department of Radiology-Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada. 2. Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Academic Medical Center, Amsterdam, The Netherlands. 3. Department of Vascular Medicine, Academic Medical Center, Room F4-139, Meibergdreef 9, 1105, AZ, Amsterdam, The Netherlands. 4. School of Epidemiology and Public Health, University of Ottawa, Ottawa, ON, Canada. 5. Dalhousie University, Halifax, NS, Canada. 6. Department of Radiology, Clinical Epidemiology Program, Ottawa Hospital Research Institute, University of Ottawa, Room c159 Ottawa Hospital Civic Campus, 1053 Carling Ave., Ottawa, ON, K1Y 4E9, Canada. mmcinnes@toh.on.ca.
Abstract
OBJECTIVES: The objective of this study was to evaluate whether higher reported accuracy estimates are associated with shorter time to publication among imaging diagnostic accuracy studies. METHODS: We included primary imaging diagnostic accuracy studies, included in meta-analyses from systematic reviews published in 2015. For each primary study, we extracted accuracy estimates, participant recruitment periods and publication dates. Our primary outcome was the association between Youden's index (sensitivity + specificity - 1, a single measure of diagnostic accuracy) and time to publication. RESULTS: We included 55 systematic reviews and 781 primary studies. Study completion dates were missing for 238 (30%) studies. The median time from completion to publication in the remaining 543 studies was 20 months (IQR 14-29). Youden's index was negatively correlated with time from completion to publication (rho = -0.11, p = 0.009). This association remained significant in multivariable Cox regression analyses after adjusting for seven study characteristics: hazard ratio of publication was 1.09 (95% CI 1.03-1.16, p = 0.004) per unit increase for logit-transformed estimates of Youden's index. When dichotomizing Youden's index by a median split, time from completion to publication was 20 months (IQR 13-33) for studies with a Youden's index below the median, and 19 months (14-27) for studies with a Youden's index above the median (p = 0.104). CONCLUSION: Imaging diagnostic accuracy studies with higher accuracy estimates were weakly associated with a shorter time to publication. KEY POINTS: • Higher accuracy estimates are weakly associated with shorter time to publication. • Lag in time to publication remained significant in multivariate Cox regression analyses. • No correlation between accuracy and time from submission to publication was identified.
OBJECTIVES: The objective of this study was to evaluate whether higher reported accuracy estimates are associated with shorter time to publication among imaging diagnostic accuracy studies. METHODS: We included primary imaging diagnostic accuracy studies, included in meta-analyses from systematic reviews published in 2015. For each primary study, we extracted accuracy estimates, participant recruitment periods and publication dates. Our primary outcome was the association between Youden's index (sensitivity + specificity - 1, a single measure of diagnostic accuracy) and time to publication. RESULTS: We included 55 systematic reviews and 781 primary studies. Study completion dates were missing for 238 (30%) studies. The median time from completion to publication in the remaining 543 studies was 20 months (IQR 14-29). Youden's index was negatively correlated with time from completion to publication (rho = -0.11, p = 0.009). This association remained significant in multivariable Cox regression analyses after adjusting for seven study characteristics: hazard ratio of publication was 1.09 (95% CI 1.03-1.16, p = 0.004) per unit increase for logit-transformed estimates of Youden's index. When dichotomizing Youden's index by a median split, time from completion to publication was 20 months (IQR 13-33) for studies with a Youden's index below the median, and 19 months (14-27) for studies with a Youden's index above the median (p = 0.104). CONCLUSION: Imaging diagnostic accuracy studies with higher accuracy estimates were weakly associated with a shorter time to publication. KEY POINTS: • Higher accuracy estimates are weakly associated with shorter time to publication. • Lag in time to publication remained significant in multivariate Cox regression analyses. • No correlation between accuracy and time from submission to publication was identified.
Authors: Daniël A Korevaar; Jérémie F Cohen; René Spijker; Ian J Saldanha; Kay Dickersin; Gianni Virgili; Lotty Hooft; Patrick M M Bossuyt Journal: J Clin Epidemiol Date: 2016-06-14 Impact factor: 6.437
Authors: Will Loughborough; Helen Dale; James H Wareham; Adam H Youssef; Mark A Rodrigues; Jonathan C L Rodrigues Journal: Insights Imaging Date: 2016-08-02
Authors: Daniël A Korevaar; Nick van Es; Aeilko H Zwinderman; Jérémie F Cohen; Patrick M M Bossuyt Journal: BMC Med Res Methodol Date: 2016-06-06 Impact factor: 4.615
Authors: Daniël A Korevaar; Jean-Paul Salameh; Yasaman Vali; Jérémie F Cohen; Matthew D F McInnes; René Spijker; Patrick M Bossuyt Journal: Res Synth Methods Date: 2020-02-05 Impact factor: 5.273
Authors: Jérémie F Cohen; Jonathan J Deeks; Lotty Hooft; Jean-Paul Salameh; Daniël A Korevaar; Constantine Gatsonis; Sally Hopewell; Harriet A Hunt; Chris J Hyde; Mariska M Leeflang; Petra Macaskill; Trevor A McGrath; David Moher; Johannes B Reitsma; Anne W S Rutjes; Yemisi Takwoingi; Marcello Tonelli; Penny Whiting; Brian H Willis; Brett Thombs; Patrick M Bossuyt; Matthew D F McInnes Journal: BMJ Date: 2021-03-15