Hyppönen, Elina http://orcid.org/0000-0003-3670-9399
Carslake, David http://orcid.org/0000-0003-2916-4546
Berry, Diane J.
Power, Chris
Davey Smith, George
Article History
Received: 16 November 2020
Revised: 12 August 2021
Accepted: 27 August 2021
First Online: 8 September 2021
Competing interests
: The authors declare no competing interests.
: Ethical committee approval for the survey at 42 years of age was obtained from the North Thames Medical Research Ethics Committee (MREC) and for the survey at 44 years of age from the South East MREC. Ethical committee approval was not sought for the survey at 33 years of age, although cohort members were asked to give written consent for access to medical records. Ethical approval for the intergenerational research was obtained from the local research ethics committee (Great Ormond Street Hospital/Institute of Child Health, London).