Σύγκριση μεθόδων

	Χωρικό Δομικό Μοντέλο Οριακής Επίδρασης	Στάθμιση Βαθμολογίας Προδιάθεσης (PSW / IPW)
Πεδίο	Αιτιακή Συμπερασματολογία	Αιτιακή Συμπερασματολογία
Οικογένεια	Regression model	Regression model
Έτος προέλευσης	2000s–2010s	1983 (propensity score); 2003 (efficient IPW estimator)
Δημιουργός	Robins, Hernan & Brumback (MSM foundation, 2000); spatial extensions developed in spatial epidemiology literature	Rosenbaum & Rubin (propensity score); Hirano, Imbens & Ridder (efficient weighting)
Τύπος	Causal inference / spatial weighting	Causal inference / reweighting
Θεμελιώδης πηγή	Robins, J. M., Hernan, M. A., & Brumback, B. (2000). Marginal structural models and causal inference in epidemiology. Epidemiology, 11(5), 550-560.	Rosenbaum, P. R., & Rubin, D. B. (1983). The central role of the propensity score in observational studies for causal effects. Biometrika, 70(1), 41-55.
Εναλλακτικές ονομασίες	Spatial MSM, Geospatial MSM, Spatial IPW-MSM, Space-time marginal structural model	PSW, inverse probability weighting, IPW, propensity-based weighting
Συναφείς	6	6
Σύνοψη	The Spatial Marginal Structural Model (Spatial MSM) extends the classical marginal structural model to settings where units are geographically distributed and spatial dependencies — such as neighborhood spillovers, clustering, and spatial confounding — may bias causal estimates. It estimates causal effects of spatially varying exposures by constructing inverse probability weights that account for both individual covariates and spatial location, then fitting a weighted outcome model in the resulting pseudo-population.	Propensity score weighting is a causal-inference method that reweights observations so that the covariate distributions of treated and untreated units look exchangeable, enabling unbiased estimation of average treatment effects from observational data. Each unit receives a weight that is the inverse of its probability of receiving the treatment it actually received — a strategy formalised by Rosenbaum and Rubin (1983) and given its efficient semiparametric form by Hirano, Imbens and Ridder (2003).