منابع مشابه
Invited commentary: propensity scores.
The propensity score is the conditional probability of exposure to a treatment given observed covariates. In a cohort study, matching or stratifying treated and control subjects on a single variable, the propensity score, tends to balance all of the observed covariates; however, unlike random assignment of treatments, the propensity score may not also balance unobserved covariates. The authors ...
متن کاملInvited commentary: advancing propensity score methods in epidemiology.
Every epidemiologist knows that unmeasured confounding is a serious analytic problem, but practically speaking, there seems to be little one can do about it. In this issue of the Journal, Stürmer et al. (Am J Epidemiol 2007:165:1110-18) offer a novel solution that combines propensity score matching methods with measurement error regression models. They call this technique "propensity score cali...
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Positivity, or the experimental treatment assignment assumption, requires that there be both exposed and unexposed participants at every combination of the values of the observed confounders in the population under study. Positivity is essential for inference but is often overlooked in practice by epidemiologists. This issue of the Journal includes 2 articles featuring discussions related to po...
متن کاملInvited Commentary Invited Commentary: Dietary Pattern Analysis
The analytic approaches used in nutritional epidemiology for dietary pattern analyses share common characteristics with those of genetic epidemiology. In this issue of the Journal, Gorst-Rasmussen et al. (Am J Epidemiol. 2011;173(10):1097–1104) discuss one such approach. Application of methods used in genetic pattern analyses to nutritional epidemiology could prove valuable but raises important...
متن کاملInvited Commentary Invited Commentary: Rescuing Robinson Crusoe
Estimating the independent effect of ‘‘place’’ on health outcomes has proven quite difficult. In this issue of the Journal, Auchincloss and Diez Roux contribute a lucid introduction to agent-based simulation models and argue that they may be a fruitful alternative to current approaches to the problem. Insofar as conceptual understanding must precede empirical investigation, this author agrees. ...
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ژورنال
عنوان ژورنال: American Journal of Epidemiology
سال: 1999
ISSN: 0002-9262,1476-6256
DOI: 10.1093/oxfordjournals.aje.a010011