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Is network meta-analysis as valid as standard pairwise meta-analysis? It all depends on the distribution of effect modifiers

Jansen, Jeroen P.; Naci, Huseyin - London School of Economics (LSE) - 2013

Background In the last decade, network meta-analysis of randomized controlled trials has been introduced as an extension of pairwise meta-analysis. The advantage of network meta-analysis over standard pairwise meta-analysis is that it facilitates indirect comparisons of multiple interventions...

Persistent link: https://www.econbiz.de/10011126556

Estimating the Effect of Perceived Risk of Crime on Social Trust in the Presence of Endogeneity Bias

Zanin, Luca; Radice, Rosalba; Marra, Giampiero - In: Social Indicators Research 114 (2013) 2, pp. 523-547

women, accounting for both observed and unobserved confounding. We use microdata collected by the Italian National … estimated after controlling for observed confounding by using a propensity score weighting approach. To control for both … observed and unobserved confounding (better known as endogeneity), a semiparametric recursive bivariate probit approach is …

Persistent link: https://www.econbiz.de/10010728137

Optimal blocking for general resolution-3 designs

SCHOEN, Eric D.; SARTONO, Bagus; GOOS, Peter - Faculteit Toegepaste Economische Wetenschappen, … - 2012

This paper presents a general method for nding optimal blocking arrangements of pure-level and mixed-level orthogonal designs of resolution 3. The method requires enumeration of all non-isomorphic `parent designs' that include the treatment factors as well as the future blocking factor. For all...

Persistent link: https://www.econbiz.de/10010797668

The effects of family stressors on substance use initiation in adolescence

Fletcher, Jason; Sindelar, Jody - In: Review of Economics of the Household 10 (2012) 1, pp. 99-114

Persistent link: https://www.econbiz.de/10010867592

A command to calculate age-standardized rates with efficient interval estimation

Consonni, Dario; Coviello, Enzo; Buzzoni, Carlotta; … - In: Stata Journal 12 (2012) 4, pp. 688-701

In this article, we illustrate the command distrate, which calcu- lates age-standardized rates with efficient interval estimation by using formulas developed by Tiwari, Clegg, and Zou (2006, Statistical Methods in Medical Re- search 15: 547–569) as a modification of the method proposed by Fay...

Persistent link: https://www.econbiz.de/10011002416

Confounding and control in a multivariate system. An issue in causal attribution

RUSSO, Federica; MOUCHART, Michel; WUNSCH, Guillaume - Center for Operations Research and Econometrics (CORE), … - 2013

third variable, susceptible of confounding the relation between X and Y. This paper examines complex systems of variables …, characterised by multiple causes and multiple effects. The paper advances the view that in such contexts confounding is a moot issue …

Persistent link: https://www.econbiz.de/10010752808

Controlling for time-dependent confounding using marginal structural models

Fewell, Zoe; Wolfe, Frederick; Choi, Hyon; Hernán, … - In: Stata Journal 4 (2004) 4, pp. 402-420

Longitudinal studies in which exposures, confounders, and outcomes are measured repeatedly over time have the potential to allow causal inferences about the effects of exposure on outcome. There is particular interest in estimating the causal effects of medical treatments (or other...

Persistent link: https://www.econbiz.de/10005583299

Statistics and causal inference: A review

Pearl, Judea - In: TEST: An Official Journal of the Spanish Society of … 12 (2003) 2, pp. 281-345

Persistent link: https://www.econbiz.de/10005613288

Two postestimation commands for assessing confounding effects in epidemiological studies

Wang, Zhiqiang - In: Stata Journal 7 (2007) 2, pp. 183-196

Confounding is a major issue in observational epidemiological studies. This paper describes two postestimation commands … for assessing confounding effects. One command (confall) displays and plots all possible effect estimates against one of p …

Persistent link: https://www.econbiz.de/10005748328

Data Adaptive Estimation of the Treatment Specific Mean

Wang, Yue; Laan, Mark van der - Berkeley Electronic Press - 2004

An important problem in epidemiology and medical research is the estimation of a causal effect of a treatment action at a single point in time on the mean of an outcome within a population defined by strata of some of the observed covariates. Marginal structural models (MSM) are models for...

Persistent link: https://www.econbiz.de/10005751448