Modified logit life table system: Principles, empirical validation, and application

Murray, C. J . L., Ferguson, B. D., Lopez, A. D., Guillot, M., Ahmad, O. and Salomon, J. A. (2003) Modified logit life table system: Principles, empirical validation, and application. Population Studies, 57 2: 165-182. doi:10.1080/0032472032000097083

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Author Murray, C. J . L.
Ferguson, B. D.
Lopez, A. D.
Guillot, M.
Ahmad, O.
Salomon, J. A.
Title Modified logit life table system: Principles, empirical validation, and application
Journal name Population Studies   Check publisher's open access policy
ISSN 0032-4728
Publication date 2003-07-01
Sub-type Article (original research)
DOI 10.1080/0032472032000097083
Open Access Status Not yet assessed
Volume 57
Issue 2
Start page 165
End page 182
Total pages 18
Editor J. Simons
Place of publication Abingdon, U. K.
Publisher Routledge Taylor & Francis Ltd
Language eng
Subject C1
321202 Epidemiology
730299 Public health not elsewhere classified
1199 Other Medical and Health Sciences
Abstract Despite its widespread use, the Coale-Demeny model life table system does not capture the extensive variation in age-specific mortality patterns observed in contemporary populations, particularly those of the countries of Eastern Europe and populations affected by HIV/AIDS. Although relational mortality models, such as the Brass logit system, can identify these variations, these models show systematic bias in their predictive ability as mortality levels depart from the standard. We propose a modification of the two-parameter Brass relational model. The modified model incorporates two additional age-specific correction factors (gamma(x), and theta(x)) based on mortality levels among children and adults, relative to the standard. Tests of predictive validity show deviations in age-specific mortality rates predicted by the proposed system to be 30-50 per cent lower than those predicted by the Coale-Demeny system and 15-40 per cent lower than those predicted using the original Brass system. The modified logit system is a two-parameter system, parameterized using values of l(5) and l(60).
Keyword Adult Mortality
Age-specific Death Rates
Brass Techniques
Indirect Estimation Techniques
Model Life Table Systems
Relational Logit Models
Q-Index Code C1

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Created: Wed, 15 Aug 2007, 11:55:34 EST