Kinnunen, Lotta http://orcid.org/0000-0001-5428-6938
Nordström, Tanja http://orcid.org/0000-0002-1170-9125
Niemelä, Mika
Räsänen, Sami
Whittle, Sarah http://orcid.org/0000-0003-3145-1528
Miettunen, Jouko http://orcid.org/0000-0003-0575-2669
Funding for this research was provided by:
Academy of Finland (268336, 288960, 268336, 288960, 268336, 288960, 268336, 288960, 268336, 288960)
Suomen Kulttuurirahasto (00160427)
Lapin Rahasto (40181463)
Juho Vainion Säätiö (201610329)
The National Health and Medical Research Foundation (1007716)
Oulun Yliopiston Tukisäätiö (20180212)
OLVI-Säätiö
Lastentautien Tutkimussäätiö
Article History
Accepted: 12 August 2021
First Online: 28 August 2021
Compliance with Ethical Standards
:
: The authors declare no competing interests.
: The NFBC1986 study obtained the ethics approval of the Ethical Committee of the Northern Ostrobothnia Hospital District in Finland (17 May 2006) and permission to gather and use register data and hospital records from the Finnish Ministry of Social Affairs and Health. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This article does not contain any studies with animals performed by any of the authors. Informed consent was obtained from all individual participants included in the study. Deleted for blinded review