Results 31 to 40 of about 205,197 (219)

Individual participant data meta‐analysis versus aggregate data meta‐analysis: A case study in eczema and food allergy prevention [PDF]

Clinical & Experimental Allergy, 2022
AbstractIntroductionMeta‐analysis traditionally uses aggregate data from published reports. Individual Participant Data (IPD) meta‐analysis, which obtains and synthesizes participant‐level data, is potentially more informative, but resource‐intensive.
Eleanor Van Vogt, Suzie Cro, Victoria R. Cornelius, Hywel C. Williams, Lisa M. Askie, Rachel Phillips, Maeve M. Kelleher, Robert J. Boyle   +7 more
openaire   +4 more sources

External validation of prognostic models predicting pre-eclampsia: individual participant data meta-analysis

BMC Medicine, 2020
Background Pre-eclampsia is a leading cause of maternal and perinatal mortality and morbidity. Early identification of women at risk during pregnancy is required to plan management.
Kym I. E. Snell, John Allotey, Melanie Smuk, Richard Hooper, Claire Chan, Asif Ahmed, Lucy C. Chappell, Peter Von Dadelszen, Marcus Green, Louise Kenny, Asma Khalil, Khalid S. Khan, Ben W. Mol, Jenny Myers, Lucilla Poston, Basky Thilaganathan, Anne C. Staff, Gordon C. S. Smith, Wessel Ganzevoort, Hannele Laivuori, Anthony O. Odibo, Javier Arenas Ramírez, John Kingdom, George Daskalakis, Diane Farrar, Ahmet A. Baschat, Paul T. Seed, Federico Prefumo, Fabricio da Silva Costa, Henk Groen, Francois Audibert, Jacques Masse, Ragnhild B. Skråstad, Kjell Å. Salvesen, Camilla Haavaldsen, Chie Nagata, Alice R. Rumbold, Seppo Heinonen, Lisa M. Askie, Luc J. M. Smits, Christina A. Vinter, Per Magnus, Kajantie Eero, Pia M. Villa, Anne K. Jenum, Louise B. Andersen, Jane E. Norman, Akihide Ohkuchi, Anne Eskild, Sohinee Bhattacharya, Fionnuala M. McAuliffe, Alberto Galindo, Ignacio Herraiz, Lionel Carbillon, Kerstin Klipstein-Grobusch, Seon Ae Yeo, Joyce L. Browne, Karel G. M. Moons, Richard D. Riley, Shakila Thangaratinam, for the IPPIC Collaborative Network   +60 more
doaj   +1 more source

The choice of reference chart affects the strength of the association between malaria in pregnancy and small for gestational age: an individual participant data meta-analysis comparing the Intergrowth-21 with a Tanzanian birthweight chart

Malaria Journal, 2022
Background The prevalence of small for gestational age (SGA) may vary depending on the chosen weight-for-gestational-age reference chart. An individual participant data meta-analysis was conducted to assess the implications of using a local reference ...
George Mtove, Daniel T. R. Minja, Omari Abdul, Samwel Gesase, Kenneth Maleta, Titus H. Divala, Noel Patson, Ulla Ashorn, Miriam K. Laufer, Mwayiwawo Madanitsa, Per Ashorn, Don Mathanga, Jobiba Chinkhumba, Julie R. Gutman, Feiko O. ter Kuile, Sofie Lykke Møller, Ib C. Bygbjerg, Michael Alifrangis, Thor Theander, John P. A. Lusingu, Christentze Schmiegelow   +20 more
doaj   +1 more source

Investigating post-stroke fatigue: An individual participant data meta-analysis [PDF]

Journal of Psychosomatic Research, 2018
The prevalence of post-stroke fatigue differs widely across studies, and reasons for such divergence are unclear. We aimed to collate individual data on post-stroke fatigue from multiple studies to facilitate high-powered meta-analysis, thus increasing our understanding of this complex phenomenon.We conducted an Individual Participant Data (IPD) meta ...
Toby B. Cumming, Ai Beng Yeo, Jodie Marquez, Leonid Churilov, Jean-Marie Annoni, Umaru Badaru, Nastaran Ghotbi, Joe Harbison, Gert Kwakkel, Anners Lerdal, Roger Mills, Halvor Naess, Harald Nyland, Arlene Schmid, Wai Kwong Tang, Benjamin Tseng, Ingrid van de Port, Gillian Mead, Coralie English   +18 more
openaire   +4 more sources

Obtaining and managing data sets for individual participant data meta-analysis: scoping review and practical guide

BMC Medical Research Methodology, 2020
Background Shifts in data sharing policy have increased researchers’ access to individual participant data (IPD) from clinical studies. Simultaneously the number of IPD meta-analyses (IPDMAs) is increasing.
Matthew Ventresca, Holger J. Schünemann, Fergus Macbeth, Mike Clarke, Lehana Thabane, Gareth Griffiths, Simon Noble, David Garcia, Maura Marcucci, Alfonso Iorio, Qi Zhou, Mark Crowther, Elie A. Akl, Gary H. Lyman, Viktoria Gloy, Marcello DiNisio, Matthias Briel   +16 more
doaj   +1 more source

Statistical analyses and quality of individual participant data network meta-analyses were suboptimal: a cross-sectional study

BMC Medicine, 2020
Background Network meta-analyses using individual participant data (IPD-NMAs) have been increasingly used to compare the effects of multiple interventions.
Ya Gao, Shuzhen Shi, Muyang Li, Xinyue Luo, Ming Liu, Kelu Yang, Junhua Zhang, Fujian Song, Jinhui Tian   +8 more
doaj   +1 more source

Estimating interactions in individual participant data meta-analysis: a comparison of methods in practice

Systematic Reviews, 2022
Medical interventions may be more effective in some types of individuals than others and identifying characteristics that modify the effectiveness of an intervention is a cornerstone of precision or stratified medicine.
Ruth Walker, Lesley Stewart, Mark Simmonds   +2 more
doaj   +1 more source

Tocolysis with nifedipine versus atosiban and perinatal outcome: an individual participant data meta-analysis

BMC Pregnancy and Childbirth, 2022
Background Worldwide, nifedipine and atosiban are the two most commonly used tocolytic agents for the treatment of threatened preterm birth. The aim of this study was to evaluate the effectiveness of nifedipine and atosiban in an individual participant ...
Tijn M. S. van Winden, Tobias A. J. Nijman, C. Emily Kleinrouweler, Raed Salim, Maryam Kashanian, Wafa R. Al-Omari, Eva Pajkrt, Ben W. Mol, Martijn A. Oudijk, Carolien Roos   +9 more
doaj   +1 more source

Efficacy and Moderators of Cognitive Behavioural Therapy for Psychosis Versus Other Psychological Interventions: An Individual-Participant Data Meta-Analysis

Frontiers in Psychiatry, 2020
BackgroundStudy-level meta-analyses have demonstrated the efficacy of cognitive–behavioural therapy for psychosis (CBTp). Limitations of conventional meta-analysis may be addressed using individual-participant-data (IPD). We aimed to determine a) whether
David T. Turner, Mirjam Reijnders, Mark van der Gaag, Mark van der Gaag, Eirini Karyotaki, Lucia R. Valmaggia, Lucia R. Valmaggia, Steffen Moritz, Tania Lecomte, Douglas Turkington, Rafael Penadés, Helio Elkis, Corinne Cather, Frances Shawyer, Kieron O’Connor, Zhan-Jiang Li, Eliza Martha de Paiva Barretto, Pim Cuijpers   +17 more
doaj   +1 more source

Pooled prevalence of depressive symptoms among medical students: an individual participant data meta-analysis

BMC Psychiatry, 2023
Background The methodological choice of aggregated estimates for meta-analysis may be notable for some common drawbacks, including variations in the cut-off values of depression, and lower statistical power for analyzing the associated factors. The study
Depression in Medical Students Research Group, Wilson Baldin Zatt, Kenneth Lo, Wilson Tam   +3 more
doaj   +1 more source