1952
DOI: 10.2307/2280784
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A Generalization of Sampling Without Replacement From a Finite Universe

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Cited by 1,311 publications
(895 citation statements)
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“…Multivariate models were expansion weighted for the racestratified sampling design (non-proportional sampling fractions) and weighted for survey non-response using the HorvitzThompson approach. 27 Multiple imputation with 20 imputations was used for missing covariates, and an alpha level of 0.05 was set as the threshold for statistical significance. As sensitivity analyses, all models were repeated after excluding patients prescribed bupropion or duloxetine, both of which have Food and Drug Administration (FDA)-approved non-psychiatric indications, who lacked a chart diagnosis of a depressive or anxiety disorder within 1 year of the index prescription.…”
Section: Resultsmentioning
confidence: 99%
“…Multivariate models were expansion weighted for the racestratified sampling design (non-proportional sampling fractions) and weighted for survey non-response using the HorvitzThompson approach. 27 Multiple imputation with 20 imputations was used for missing covariates, and an alpha level of 0.05 was set as the threshold for statistical significance. As sensitivity analyses, all models were repeated after excluding patients prescribed bupropion or duloxetine, both of which have Food and Drug Administration (FDA)-approved non-psychiatric indications, who lacked a chart diagnosis of a depressive or anxiety disorder within 1 year of the index prescription.…”
Section: Resultsmentioning
confidence: 99%
“…We use equation (A1) in Theorem A2 provided in the Appendix to obtain the variance estimator for the estimatorβ. For comparison we also include the inverse probability weighted estimatorβ IPW of Binder (1992) and Lin (2000); see also Horvitz & Thompson (1952) and Qi et al (2005). For the definition of the inverse probability weighted estimator, see equation (13) in § 4·3.…”
Section: Applications 4·1 Length-biased Datamentioning
confidence: 99%
“…Clinicians may want to estimate the average e ect of: (1) assigning all patients to treatment t versus treatment k; (2) treatment t versus treatment k for those assigned to treatment t; or (3) treatment t versus any other treatment, t, for those assigned to t. To answer the ÿrst question, we must assume that all patients can potentially be assigned to each treatment, and be willing to estimate potential outcomes under all treatments for each patient. Imbens [2] presents a weighted estimator similar to Horvitz-Thompson estimator [14] to answer the ÿrst question. The second question can be answered by comparing only the data from treatments t and k. This approach drastically reduces the sample size and does not make use of all the potential information.…”
Section: Causal Inference With Multi-valued Treatmentsmentioning
confidence: 99%