qlifetable: An R package for constructing quarterly life tables.

The big data revolution has greatly expanded the availability of microdata on vital statistics, providing researchers with unprecedented access to large and complex datasets on birth, death, migration, and population, sometimes even including exact dates of demographic events. This has led to the de...

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Main Authors: Jose M Pavía, Josep Lledó
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2025-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0315937
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author Jose M Pavía
Josep Lledó
author_facet Jose M Pavía
Josep Lledó
author_sort Jose M Pavía
collection DOAJ
description The big data revolution has greatly expanded the availability of microdata on vital statistics, providing researchers with unprecedented access to large and complex datasets on birth, death, migration, and population, sometimes even including exact dates of demographic events. This has led to the development of a novel methodology for estimating sub-annual life tables that offers new opportunities for the insurance industry, also potentially impacting on the management of pension funds and social security systems. This paper introduces the qlifetable package, an R implementation of this methodology. It begins by detailing how basic summary statistics are computed by the package from detailed individual records, including the length of age years, which should be observed as relative (subjective) to ensure congruency between age and calendar time when measuring exposure times and exact ages of individuals at events. This is a new result that compels the observation of time as relative in the disciplines of actuarial science, risk management and demography. Afterwards, the paper demonstrates the use of the package, which integrates a set of functions for estimating crude quarterly (and annual) death rates, calculating seasonal-ageing indexes (SAIs) and building quarterly life tables for a (general or insured) population by exploiting either microdata of dates of births and events or summary statistics.
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spelling doaj-art-c5788ec0271741bdb11fbaea67954f212025-08-20T03:09:19ZengPublic Library of Science (PLoS)PLoS ONE1932-62032025-01-01202e031593710.1371/journal.pone.0315937qlifetable: An R package for constructing quarterly life tables.Jose M PavíaJosep LledóThe big data revolution has greatly expanded the availability of microdata on vital statistics, providing researchers with unprecedented access to large and complex datasets on birth, death, migration, and population, sometimes even including exact dates of demographic events. This has led to the development of a novel methodology for estimating sub-annual life tables that offers new opportunities for the insurance industry, also potentially impacting on the management of pension funds and social security systems. This paper introduces the qlifetable package, an R implementation of this methodology. It begins by detailing how basic summary statistics are computed by the package from detailed individual records, including the length of age years, which should be observed as relative (subjective) to ensure congruency between age and calendar time when measuring exposure times and exact ages of individuals at events. This is a new result that compels the observation of time as relative in the disciplines of actuarial science, risk management and demography. Afterwards, the paper demonstrates the use of the package, which integrates a set of functions for estimating crude quarterly (and annual) death rates, calculating seasonal-ageing indexes (SAIs) and building quarterly life tables for a (general or insured) population by exploiting either microdata of dates of births and events or summary statistics.https://doi.org/10.1371/journal.pone.0315937
spellingShingle Jose M Pavía
Josep Lledó
qlifetable: An R package for constructing quarterly life tables.
PLoS ONE
title qlifetable: An R package for constructing quarterly life tables.
title_full qlifetable: An R package for constructing quarterly life tables.
title_fullStr qlifetable: An R package for constructing quarterly life tables.
title_full_unstemmed qlifetable: An R package for constructing quarterly life tables.
title_short qlifetable: An R package for constructing quarterly life tables.
title_sort qlifetable an r package for constructing quarterly life tables
url https://doi.org/10.1371/journal.pone.0315937
work_keys_str_mv AT josempavia qlifetableanrpackageforconstructingquarterlylifetables
AT joseplledo qlifetableanrpackageforconstructingquarterlylifetables