Age-specific mortality and the role of living remotely: The 1918-20 influenza pandemic in Kautokeino and Karasjok, Norway
The 1918–20 pandemic influenza killed 50–100 million people worldwide, but mortality varied by ethnicity and geography. In Norway, areas dominated by Sámi experienced 3–5 times higher mortality than the country’s average. We here use data from burial registers and censuses to calculate all-cause exc...
Published in: | International Journal of Circumpolar Health |
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2023
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Online Access: | https://hdl.handle.net/10037/28668 https://doi.org/10.1080/22423982.2023.2179452 |
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ftunivtroemsoe:oai:munin.uit.no:10037/28668 2023-05-15T15:55:25+02:00 Age-specific mortality and the role of living remotely: The 1918-20 influenza pandemic in Kautokeino and Karasjok, Norway Nygaard, Ingrid Hellem Dahal, Sushma Chowell, Gerardo Sattenspiel, Lisa Sommerseth, Hilde Leikny Mamelund, Svenn-Erik 2023-02-22 https://hdl.handle.net/10037/28668 https://doi.org/10.1080/22423982.2023.2179452 eng eng Taylor & Francis International Journal of Circumpolar Health Nygaard IH, Dahal S, Chowell G, Sattenspiel L, Sommerseth HL, Mamelund S. Age-specific mortality and the role of living remotely: The 1918-20 influenza pandemic in Kautokeino and Karasjok, Norway. International Journal of Circumpolar Health. 2023 FRIDAID 2128500 https://doi.org/10.1080/22423982.2023.2179452 1239-9736 2242-3982 https://hdl.handle.net/10037/28668 Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) openAccess Copyright 2023 The Author(s) https://creativecommons.org/licenses/by-nc/4.0 CC-BY-NC Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2023 ftunivtroemsoe https://doi.org/10.1080/22423982.2023.2179452 2023-03-09T00:04:22Z The 1918–20 pandemic influenza killed 50–100 million people worldwide, but mortality varied by ethnicity and geography. In Norway, areas dominated by Sámi experienced 3–5 times higher mortality than the country’s average. We here use data from burial registers and censuses to calculate all-cause excess mortality by age and wave in two remote Sámi areas of Norway 1918– 20. We hypothesise that geographic isolation, less prior exposure to seasonal influenza, and thus less immunity led to higher Indigenous mortality and a different age distribution of mortality (higher mortality for all) than was typical for this pandemic in non-isolated majority populations (higher young adult mortality & sparing of the elderly). Our results show that in the fall of 1918 (Karasjok), winter of 1919 (Kautokeino), and winter of 1920 (Karasjok), young adults had the highest excess mortality, followed by also high excess mortality among the elderly and children. Children did not exhibit excess mortality in the second wave in Karasjok in 1920. It was not the young adults alone who produced the excess mortality in Kautokeino and Karasjok. We conclude that geographic isolation caused higher mortality among the elderly in the first and second waves, and among children in the first wave. Article in Journal/Newspaper Circumpolar Health International Journal of Circumpolar Health Karasjok Kautokeino Sámi University of Tromsø: Munin Open Research Archive Norway Kautokeino ENVELOPE(23.048,23.048,69.003,69.003) Karasjok ENVELOPE(25.519,25.519,69.472,69.472) International Journal of Circumpolar Health 82 1 |
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Open Polar |
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University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
description |
The 1918–20 pandemic influenza killed 50–100 million people worldwide, but mortality varied by ethnicity and geography. In Norway, areas dominated by Sámi experienced 3–5 times higher mortality than the country’s average. We here use data from burial registers and censuses to calculate all-cause excess mortality by age and wave in two remote Sámi areas of Norway 1918– 20. We hypothesise that geographic isolation, less prior exposure to seasonal influenza, and thus less immunity led to higher Indigenous mortality and a different age distribution of mortality (higher mortality for all) than was typical for this pandemic in non-isolated majority populations (higher young adult mortality & sparing of the elderly). Our results show that in the fall of 1918 (Karasjok), winter of 1919 (Kautokeino), and winter of 1920 (Karasjok), young adults had the highest excess mortality, followed by also high excess mortality among the elderly and children. Children did not exhibit excess mortality in the second wave in Karasjok in 1920. It was not the young adults alone who produced the excess mortality in Kautokeino and Karasjok. We conclude that geographic isolation caused higher mortality among the elderly in the first and second waves, and among children in the first wave. |
format |
Article in Journal/Newspaper |
author |
Nygaard, Ingrid Hellem Dahal, Sushma Chowell, Gerardo Sattenspiel, Lisa Sommerseth, Hilde Leikny Mamelund, Svenn-Erik |
spellingShingle |
Nygaard, Ingrid Hellem Dahal, Sushma Chowell, Gerardo Sattenspiel, Lisa Sommerseth, Hilde Leikny Mamelund, Svenn-Erik Age-specific mortality and the role of living remotely: The 1918-20 influenza pandemic in Kautokeino and Karasjok, Norway |
author_facet |
Nygaard, Ingrid Hellem Dahal, Sushma Chowell, Gerardo Sattenspiel, Lisa Sommerseth, Hilde Leikny Mamelund, Svenn-Erik |
author_sort |
Nygaard, Ingrid Hellem |
title |
Age-specific mortality and the role of living remotely: The 1918-20 influenza pandemic in Kautokeino and Karasjok, Norway |
title_short |
Age-specific mortality and the role of living remotely: The 1918-20 influenza pandemic in Kautokeino and Karasjok, Norway |
title_full |
Age-specific mortality and the role of living remotely: The 1918-20 influenza pandemic in Kautokeino and Karasjok, Norway |
title_fullStr |
Age-specific mortality and the role of living remotely: The 1918-20 influenza pandemic in Kautokeino and Karasjok, Norway |
title_full_unstemmed |
Age-specific mortality and the role of living remotely: The 1918-20 influenza pandemic in Kautokeino and Karasjok, Norway |
title_sort |
age-specific mortality and the role of living remotely: the 1918-20 influenza pandemic in kautokeino and karasjok, norway |
publisher |
Taylor & Francis |
publishDate |
2023 |
url |
https://hdl.handle.net/10037/28668 https://doi.org/10.1080/22423982.2023.2179452 |
long_lat |
ENVELOPE(23.048,23.048,69.003,69.003) ENVELOPE(25.519,25.519,69.472,69.472) |
geographic |
Norway Kautokeino Karasjok |
geographic_facet |
Norway Kautokeino Karasjok |
genre |
Circumpolar Health International Journal of Circumpolar Health Karasjok Kautokeino Sámi |
genre_facet |
Circumpolar Health International Journal of Circumpolar Health Karasjok Kautokeino Sámi |
op_relation |
International Journal of Circumpolar Health Nygaard IH, Dahal S, Chowell G, Sattenspiel L, Sommerseth HL, Mamelund S. Age-specific mortality and the role of living remotely: The 1918-20 influenza pandemic in Kautokeino and Karasjok, Norway. International Journal of Circumpolar Health. 2023 FRIDAID 2128500 https://doi.org/10.1080/22423982.2023.2179452 1239-9736 2242-3982 https://hdl.handle.net/10037/28668 |
op_rights |
Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) openAccess Copyright 2023 The Author(s) https://creativecommons.org/licenses/by-nc/4.0 |
op_rightsnorm |
CC-BY-NC |
op_doi |
https://doi.org/10.1080/22423982.2023.2179452 |
container_title |
International Journal of Circumpolar Health |
container_volume |
82 |
container_issue |
1 |
_version_ |
1766390911493734400 |