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Over-coverage in population registers leads to bias in demographic estimates
Stockholm University, Faculty of Social Sciences, Department of Sociology.
Stockholm University, Faculty of Social Sciences, Department of Sociology.
Stockholm University, Faculty of Social Sciences, Department of Sociology.
Number of Authors: 42019 (English)In: Population Studies, ISSN 0032-4728, E-ISSN 1477-4747Article in journal (Refereed) Epub ahead of print
Abstract [en]

Estimating the number of individuals living in a country is an essential task for demographers. This study assesses the potential bias in estimating the size of different migrant populations due to over-coverage in population registers. Over-coverage-individuals registered but not living in a country-is an increasingly pressing phenomenon; however, there is no common understanding of how to deal with over-coverage in demographic research. This study examines different approaches to and improvements in over-coverage estimation using Swedish total population register data. We assess over-coverage levels across migrant groups, test how estimates of age-specific death and fertility rates are affected when adjusting for over-coverage, and examine whether over-coverage can explain part of the healthy migrant paradox. Our results confirm the existence of over-coverage and we find substantial changes in mortality and fertility rates, when adjusted, for people of migrating age. Accounting for over-coverage is particularly important for correctly estimating migrant fertility.

Place, publisher, year, edition, pages
2019.
Keywords [en]
over-coverage, fertility, mortality, foreign-born, Sweden, register-based, register bias, population estimates, healthy migrant paradox
National Category
Sociology
Identifiers
URN: urn:nbn:se:su:diva-176510DOI: 10.1080/00324728.2019.1683219ISI: 000496390800001PubMedID: 31722620OAI: oai:DiVA.org:su-176510DiVA, id: diva2:1381281
Available from: 2019-12-20 Created: 2019-12-20 Last updated: 2020-01-20

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Monti, AndreaDrefahl, SvenMussino, Eleonora
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