Search Results - "Luna, Xavier"

Journal Article

Inference for partial correlation when data are missing not at random

by Gorbach, Tetiana de Luna, Xavier Published in Statistics & probability letters (01.10.2018)

“...We introduce uncertainty regions to perform inference on partial correlations when data are missing not at random. These uncertainty regions are shown to have...”

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Sufficient Dimension Reduction for Feasible and Robust Estimation of Average Causal Effect

by Ghosh, Trinetri Ma, Yanyuan de Luna, Xavier Published in Statistica Sinica (2021-00-00)

“...Statistica Sinica 31 (2021), 1-22 When estimating the treatment effect in an observational study, we use a semiparametric locally efficient dimension reduction...”

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Journal Article

Sensitivity analysis for unobserved confounding of direct and indirect effects using uncertainty intervals

by Lindmark, Anita Luna, Xavier Eriksson, Marie Published in Statistics in medicine (10.05.2018)

“...To estimate direct and indirect effects of an exposure on an outcome from observed data, strong assumptions about unconfoundedness are required. Since these...”

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Journal Article

Data Resource Profile: Swedish Microdata Research from Childhood into Lifelong Health and Welfare (Umeå SIMSAM Lab)

by Lindgren, Urban Nilsson, Karina de Luna, Xavier Ivarsson, Anneli Published in International journal of epidemiology (01.08.2016)

Journal Article

Influenza Casts a Lung Shadow

by De Luna, Xavier Hartshorn, Kevan L Published in The American journal of pathology (2017)

“...This commentary highlights the article by Pociask et al that provides new insights into the lingering effects of influenza infection...”

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Synthesis and Characterization of Silica/Poly (Methyl Methacrylate) Nanocomposite Latex Particles through Emulsion Polymerization Using a Cationic Azo Initiator

by Luna-Xavier, José-Luiz Guyot, Alain Bourgeat-Lami, Elodie Published in Journal of colloid and interface science (01.06.2002)

“...Following a previous work (J. L. Luna-Xavier et al., Colloid Polym. Sci.279, 947 (2001)), silica–poly (methyl methacrylate) (PMMA) nanocomposite latex...”

Journal Article

Longitudinal association between hippocampus atrophy and episodic-memory decline

by Gorbach, Tetiana Pudas, Sara Lundquist, Anders Orädd, Greger Josefsson, Maria Salami, Alireza de Luna, Xavier Nyberg, Lars Published in Neurobiology of aging (2016)

“...Abstract There is marked variability in both onset and rate of episodic-memory decline in aging. Structural magnetic-resonance imaging (MRI) studies have...”

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Journal Article

Data-driven algorithms for dimension reduction in causal inference

by Persson, Emma Häggström, Jenny Waernbaum, Ingeborg de Luna, Xavier Published in Computational statistics & data analysis (01.01.2017)

“...In observational studies, the causal effect of a treatment may be confounded with variables that are related to both the treatment and the outcome of interest...”

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Journal Article

Can adult education delay retirement from the labour market?

by Stenberg, Anders Luna, Xavier de Westerlund, Olle Published in Journal of population economics (2012)

“...We examine whether adult education delays retirement to potentially increase labour force participation among the elderly, a mechanism suggested in the OECD...”

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Journal Article

Preparation of nano‐sized silica/poly(methyl methacrylate) composite latexes by heterocoagulation: comparison of three synthetic routes

by Luna‐Xavier, José‐Luiz Guyot, Alain Bourgeat‐Lami, Elodie Published in Polymer international (01.05.2004)

“...Continuing earlier work, 2,2′‐azobis(isobutyramidine) dihydrochloride (AIBA) was used as a cationic initiator to generate positively charged polymers, and...”

Journal Article

Does formal education for older workers increase earnings?: Evidence based on rich data and long-term follow-up

by Stenberg, Anders Luna, Xavier de Westerlund, Olle Published in Labour (Rome, Italy) (2014)

“...Governments in Europe, Canada and the USA have expressed an ambition to stimulate education of older. In this paper, we analyse if there are effects on annual...”

Journal Article

Does the number of siblings affect health in midlife? Evidence from the Swedish Prescribed Drug Register

by Anna Baranowska-Rataj Xavier de Luna Anneli Ivarsson Published in Demographic research (01.12.2016)

“...Our objective is to examine the long-term causal effects of sibship size on physical and mental health in modern Sweden. We employ longitudinal data covering...”

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Journal Article

Brain Characteristics of Individuals Resisting Age-Related Cognitive Decline over Two Decades

by Pudas, Sara Persson, Jonas Josefsson, Maria de Luna, Xavier Nilsson, Lars-Göran Nyberg, Lars Published in The Journal of neuroscience (15.05.2013)

“...Some elderly appear to resist age-related decline in cognitive functions, but the neural correlates of successful cognitive aging are not well known. Here,...”

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Journal Article

Family Life Course and the Timing of Women's Retirement – a Sequence Analysis Approach

by Svensson, Ingrid Lundholm, Emma De Luna, Xavier Malmberg, Gunnar Published in Population space and place (01.11.2015)

“...Based on longitudinal data from national Swedish registers, family life course dynamics for all women born in 1935 in Sweden are explored for the period...”

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The role of initiation in the synthesis of silica/poly(methyl methacrylate) nanocomposite latex particles through emulsion polymerization

by Luna-Xavier, J.-L Bourgeat-Lami, E Guyot, A Published in Colloid and polymer science (01.10.2001)

“...Silica/poly(methyl methacrylate) nanocomposite latex particles have been synthesized by emulsion polymerization of methyl methacrylate using a nonionic...”

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Journal Article

Predictors of decline in self-reported health: addressing non-ignorable dropout in longitudinal studies of aging

by Genbäck, Minna Genbäck, Minna Ng, Nawi Ng, Nawi Stanghellini, Elena Stanghellini, Elena de Luna, Xavier de Luna, Xavier Published in European journal of ageing (01.06.2018)

“...Predictors of decline in health in older populations have been investigated in multiple studies before. Most longitudinal studies of aging, however, assume...”

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Journal Article

Covariate selection for the nonparametric estimation of an average treatment effect

by XAVIER DE LUNA INGEBORG WAERNBAUM THOMAS S. RICHARDSON Published in Biometrika (01.12.2011)

“...Observational studies in which the effect of a nonrandomized treatment on an outcome of interest is estimated are common in domains such as labour economics...”

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Journal Article

Testing for the Unconfoundedness Assumption Using an Instrumental Assumption

by de Luna, Xavier Johansson, Per Published in Journal of causal inference (01.09.2014)

“...The identification of average causal effects of a treatment in observational studies is typically based either on the unconfoundedness assumption (exogeneity...”

Journal Article

Causal inference accounting for unobserved confounding after outcome regression and doubly robust estimation

by Genbäck, Minna de Luna, Xavier Published in Biometrics (01.06.2019)

“...Causal inference with observational data can be performed under an assumption of no unobserved confounders (unconfoundedness assumption). There is, however,...”

Journal Article

Targeted smoothing parameter selection for estimating average causal effects

by Häggström, Jenny de Luna, Xavier Published in Computational statistics (01.12.2014)

“...The non-parametric estimation of average causal effects in observational studies often relies on controlling for confounding covariates through smoothing...”

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