Cohort profile: EFTER-COVID – a Danish nationwide cohort for assessing the long-term health effects of the COVID-19 pandemic
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Cohort profile : EFTER-COVID – a Danish nationwide cohort for assessing the long-term health effects of the COVID-19 pandemic. / Sørensen, Anna Irene Vedel; Bager, Peter; Nielsen, Nete Munk; Koch, Anders; Spiliopoulos, Lampros; Hviid, Anders; Ethelberg, Steen.
I: BMJ Open, Bind 14, Nr. 5, e087799, 2024.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Cohort profile
T2 - EFTER-COVID – a Danish nationwide cohort for assessing the long-term health effects of the COVID-19 pandemic
AU - Sørensen, Anna Irene Vedel
AU - Bager, Peter
AU - Nielsen, Nete Munk
AU - Koch, Anders
AU - Spiliopoulos, Lampros
AU - Hviid, Anders
AU - Ethelberg, Steen
N1 - Publisher Copyright: © Author(s) (or their employer(s)) 2024.
PY - 2024
Y1 - 2024
N2 - Purpose To follow SARS-CoV-2-infected persons up to 18 months after a positive test in order to assess the burden and nature of post acute symptoms and health problems. Participants Persons in Denmark above 15 years of age, who were tested positive for SARS-CoV-2 during 1 September 2020 to 21 February 2023 using a RT-PCR test. As a reference group, three test-negative individuals were selected for every two test-positive individuals by matching on test date. Findings to date In total, 2 427 913 invitations to baseline questionnaires have been sent out and 839 528 baseline questionnaires (34.5%) have been completed. Females, the age group 50–69 years, Danish-born and persons, who had received at least one SARS-CoV-2 vaccination booster dose were more likely to participate. Follow-up questionnaires were sent at 2, 4, 6, 9, 12 and 18 months after the test, with response rates at 42%–54%. Future plans New participants have been recruited on a daily basis from 1 August 2021 to 23 March 2023. Data collection will continue until the last follow-up questionnaires (at 18 months after test) have been distributed in August 2024.
AB - Purpose To follow SARS-CoV-2-infected persons up to 18 months after a positive test in order to assess the burden and nature of post acute symptoms and health problems. Participants Persons in Denmark above 15 years of age, who were tested positive for SARS-CoV-2 during 1 September 2020 to 21 February 2023 using a RT-PCR test. As a reference group, three test-negative individuals were selected for every two test-positive individuals by matching on test date. Findings to date In total, 2 427 913 invitations to baseline questionnaires have been sent out and 839 528 baseline questionnaires (34.5%) have been completed. Females, the age group 50–69 years, Danish-born and persons, who had received at least one SARS-CoV-2 vaccination booster dose were more likely to participate. Follow-up questionnaires were sent at 2, 4, 6, 9, 12 and 18 months after the test, with response rates at 42%–54%. Future plans New participants have been recruited on a daily basis from 1 August 2021 to 23 March 2023. Data collection will continue until the last follow-up questionnaires (at 18 months after test) have been distributed in August 2024.
KW - COVID-19
KW - EPIDEMIOLOGY
KW - Epidemiology
U2 - 10.1136/bmjopen-2024-087799
DO - 10.1136/bmjopen-2024-087799
M3 - Journal article
C2 - 38719312
AN - SCOPUS:85192644851
VL - 14
JO - BMJ Open
JF - BMJ Open
SN - 2044-6055
IS - 5
M1 - e087799
ER -
ID: 392980355