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On the efficiency of extended generalized estimating equation approaches

✍ Scribed by Brajendra C. Sutradhar; Pranesh Kumar

Book ID
104301743
Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
116 KB
Volume
55
Category
Article
ISSN
0167-7152

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✦ Synopsis

On top of the generalized estimating equation (GEE) approach, there exist two extended generalized estimating equation (EGEE) approaches where two sets of estimating equations are simultaneously solved for the estimation of the regression and the so-called 'working' correlation parameters. The loss of e ciency of the GEE approach based regression estimators was recently studied by Sutradhar and Das (Biometrika 86 (1999) 459). In this paper, we study the e ciency loss problem for the two EGEE approaches by utilizing the approach of Sutradhar and Das.

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## Abstract Health‐care expenditure regressions are used in a wide variety of economic analyses including risk adjustment and program and treatment evaluations. Recent articles demonstrated that generalized gamma models (GGMs) and extended estimating equations (EEE) models provide flexible approach