Results 251 to 260 of about 32,743,025 (287)

Effects of lifestyle interventions in pregnancy on gestational diabetes: individual participant data and network meta-analysis.

BMJ
Allotey J, Coomar D, Ensor J, Ruiz-Calvo G, Boath A, Ogwulu CO, Monahan M, Kabeya V, Zheng M, McNeill R, Meacham H, Mahmoud G, Simpson SA, Hitman GA, Nirantharakumar K, Heslehurst N, Pelaez M, Tonstad S, Yeo S, Cecatti JG, Facchinetti F, Motahari-Tabari NS, Renault KM, Guelfi KJ, Jensen DM, Harrison C, Khomami MB, Calle-Pascual AL, McAuliffe FM, Hauner H, Barakat R, Geiker NRW, Vinter CA, Phelan S, Kinnunen TI, Kothari A, Teede H, Poston L, Betrán AP, Moss N, Iliodromiti S, Austin F, Roberts T, Zamora J, Riley RD, Thangaratinam S, i-WIP Collaborative Group.   +46 more
europepmc   +1 more source

State of play in individual participant data meta-analyses of randomised trials: Systematic review and consensus-based recommendations

Seidler AL, Aagerup J, Nicholson LS, Hunter KE, Bajpai R, Hamilton DG, Love T, Marlin N, Nguyen D, Riley RD, Rydzewska LH, Simmonds M, Stewart LA, Tam W, Tierney JF, Wang R, Amstutz A, Briel M, Burdett S, Ensor J, Hattle M, Libesman S, Liu Y, Schandelmaier S, Siegel LK, Snell KI, Sotiropoulos J, Vale CL, White IR, Williams JG, Godolphin PJ.   +30 more
europepmc   +1 more source

Body-Mass Index and All-Cause Mortality: Individual-Participant-Data Meta-Analysis of 239 Prospective Studies in Four Continents

Lancet, The, 2016
Body-mass index and all-cause mortality: individual-participant-data meta-analysis of 239 prospective studies in four ...
John Potter, Marc J Gunter, Jonathan M Samet   +2 more
exaly   +1 more source

Individual Participant Data Meta-Analyses Should Not Ignore Clustering

Journal of Clinical Epidemiology, 2013
Individual participant data (IPD) meta-analyses often analyze their IPD as if coming from a single study. We compare this approach with analyses that rather account for clustering of patients within studies.Comparison of effect estimates from logistic regression models in real and simulated examples.The estimated prognostic effect of age in patients ...
Richard D. Riley, Thomas P A Debray, Boliang Guo   +2 more
exaly   +4 more sources

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Individual Participant Data (IPD) Meta-Analysis

2021
Individual participant data (IPD) meta-analyses are relatively new compared with the traditional aggregate data meta-analyses. IPD meta-analyses involve the collection, checking, and re-analysis of the original data for each participant in each study.
openaire   +1 more source

An individual participant data meta-analysis

2021
Objective: Behavioral interventions are well established treatments for children with attention-deficit/hyperactivity disorder (ADHD). However, insight into moderators of treatment outcome is limited. Method: We conducted an individual participant data meta-analysis (IPDMA), including data of randomized controlled behavioral intervention trials for ...
Groenman, Annabeth P., Hornstra, Rianne, Hoekstra, Pieter J., Steenhuis, Laura, Aghebati, Asma, Boyer, Bianca E., Buitelaar, Jan K., Chronis-Tuscano, Andrea, Daley, David, Dehkordian, Parisa, Dvorsky, Melissa, Franke, Nike, DuPaul, George J., Gershy, Naama, Harvey, Elizabeth, Hennig, Timo, Herbert, Sharonne, Langberg, Joshua, Mautone, Jennifer A., Mikami, Amori Yee, Pfiffner, Linda J., Power, Thomas J., Reijneveld, Sijmen A., Schramm, Satyam Antonio (Prof. Dr.), Schweitzer, Julie B., Sibley, Margaret H., Sonuga-Barke, Edmund, Thompson, Catharine, Thompson, Margaret, Webster-Stratton, Carolyn, Xie, Yuhuan, Luman, Marjolein, Oord, Saskia van der, Hoofdakker, Barbara J. van den   +33 more
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Efficient integration of aggregate data and individual participant data in one‐way mixed models

Statistics in Medicine, 2022
Often both aggregate data (AD) studies and individual participant data (IPD) studies are available for specific treatments. Combining these two sources of data could improve the overall meta‐analytic estimates of treatment effects. Moreover, often for some studies with AD, the associated IPD maybe available, albeit at some extra effort or cost to the ...
Neha Agarwala, Junyong Park, Anindya Roy
openaire   +3 more sources

Meta-Analysis of a Binary Outcome Using Individual Participant Data and Aggregate Data

Research Synthesis Methods, 2010
Abstract In this paper, we develop meta‐analysis models that synthesize a binary outcome from health‐care studies while accounting for participant‐level covariates. In particular, we show how to synthesize the observed event‐risk across studies while accounting for the within‐study association between participant‐level covariates and ...
Richard D. Riley, Ewout W. Steyerberg
exaly   +3 more sources

Overcoming obstacles in obtaining individual participant data for meta‐analysis

Research Synthesis Methods, 2016
Individual participant data (IPD) is the backbone of scientific inquiry and important to a meta‐analysis for a variety of reasons. It is therefore important to be able to access IPD, and yet, obstacles persist that make it difficult for meta‐analysts, as well as interested primary study analysts, to obtain it.
Joshua R, Polanin, Ryan T, Williams
openaire   +2 more sources