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Träfflista för sökning "WFRF:(Galvan Adriana) "

Search: WFRF:(Galvan Adriana)

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1.
  • Botvinik-Nezer, Rotem, et al. (author)
  • Variability in the analysis of a single neuroimaging dataset by many teams
  • 2020
  • In: Nature. - : Springer Science and Business Media LLC. - 0028-0836 .- 1476-4687. ; 582, s. 84-88
  • Journal article (peer-reviewed)abstract
    • Data analysis workflows in many scientific domains have become increasingly complex and flexible. Here we assess the effect of this flexibility on the results of functional magnetic resonance imaging by asking 70 independent teams to analyse the same dataset, testing the same 9 ex-ante hypotheses(1). The flexibility of analytical approaches is exemplified by the fact that no two teams chose identical workflows to analyse the data. This flexibility resulted in sizeable variation in the results of hypothesis tests, even for teams whose statistical maps were highly correlated at intermediate stages of the analysis pipeline. Variation in reported results was related to several aspects of analysis methodology. Notably, a meta-analytical approach that aggregated information across teams yielded a significant consensus in activated regions. Furthermore, prediction markets of researchers in the field revealed an overestimation of the likelihood of significant findings, even by researchers with direct knowledge of the dataset(2-5). Our findings show that analytical flexibility can have substantial effects on scientific conclusions, and identify factors that may be related to variability in the analysis of functional magnetic resonance imaging. The results emphasize the importance of validating and sharing complex analysis workflows, and demonstrate the need for performing and reporting multiple analyses of the same data. Potential approaches that could be used to mitigate issues related to analytical variability are discussed. The results obtained by seventy different teams analysing the same functional magnetic resonance imaging dataset show substantial variation, highlighting the influence of analytical choices and the importance of sharing workflows publicly and performing multiple analyses.
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2.
  • Galvan-Valencia, Oscar, et al. (author)
  • Associations of salivary aldosterone levels during pregnancy with maternal blood pressure and birth weight-for-gestational age in a Mexico City birth cohort
  • 2024
  • In: Journal of Perinatology. - : Springer Nature. - 0743-8346 .- 1476-5543. ; 44:5, s. 643-649
  • Journal article (peer-reviewed)abstract
    • ObjectiveTo determine associations of maternal salivary aldosterone with blood pressure (BP) in pregnancy and infant birth weight-for-gestational age (BWGA).MethodsWe measured maternal salivary aldosterone, BP and BWGA z-scores in 471 Mexico City pregnancy cohort participants and performed multivariable linear regression of BP and BWGA on log-aldosterone levels.ResultsLog-aldosterone was positively associated with diastolic BP (beta = 0.12 95% CI: 0.04, 0.21). There were no main effects of log-aldosterone on BWGA. However, we detected an interaction between log-aldosterone and BP in association with BWGA; higher log-aldosterone was associated with lower BWGA in the lowest (beta = -0.12, 95% CI: -0.26, 0.02) and highest (beta = -0.12, 95% CI: -0.29, 0.06) BP tertiles. In contrast, in the middle BP tertile the association was positive (beta = 0.09, 95% CI: -0.02, 0.20), p for interaction = 0.03.ConclusionHigher maternal salivary aldosterone is positively associated with diastolic BP and may affect fetal growth differently depending on concurrent maternal blood pressure.
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Type of publication
journal article (2)
Type of content
peer-reviewed (2)
Author/Editor
Nilsonne, Gustav (1)
Botvinik-Nezer, Rote ... (1)
Dreber Almenberg, An ... (1)
Holzmeister, Felix (1)
Huber, Juergen (1)
Johannesson, Magnus (1)
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Kirchler, Michael (1)
Poldrack, Russell A. (1)
Schonberg, Tom (1)
Tinghög, Gustav, 197 ... (1)
Glerean, Enrico (1)
Zhang, Lei (1)
Heunis, Stephan (1)
Wright, Robert O (1)
Cunningham, William ... (1)
Lamm, Claus (1)
Hamilton, Paul J., 1 ... (1)
Durnez, Joke (1)
Zhang, Xu (1)
Camerer, Colin F. (1)
Iwanir, Roni (1)
Mumford, Jeanette A. (1)
Adcock, R. Alison (1)
Avesani, Paolo (1)
Baczkowski, Blazej M ... (1)
Bajracharya, Aahana (1)
Bakst, Leah (1)
Ball, Sheryl (1)
Barilari, Marco (1)
Bault, Nadege (1)
Beaton, Derek (1)
Beitner, Julia (1)
Benoit, Roland G. (1)
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Bhanji, Jamil P. (1)
Biswal, Bharat B. (1)
Bobadilla-Suarez, Se ... (1)
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Bottenhorn, Katherin ... (1)
Bowring, Alexander (1)
Braem, Senne (1)
Brooks, Hayley R. (1)
Brudner, Emily G. (1)
Calderon, Cristian B ... (1)
Camilleri, Julia A. (1)
Castrellon, Jaime J. (1)
Cecchetti, Luca (1)
Cieslik, Edna C. (1)
Cole, Zachary J. (1)
Collignon, Olivier (1)
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Stockholm University (1)
Linköping University (1)
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Karlstad University (1)
Karolinska Institutet (1)
Language
English (2)
Research subject (UKÄ/SCB)
Medical and Health Sciences (2)
Natural sciences (1)
Social Sciences (1)

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