Consequences of heterogeneity in aging: parental age at death predicts midlife all-cause mortality and hospitalization in a Swedish national birth cohort.

"Declarations Ethics approval and consent to participateThe research reported here was approved by the regional ethical review board (Regionala Etikprövningsnämden i Stockholm) under the RELINK-53 project (no.2017/34–31/5; 2017/684–32). This study is based on register data belonging to Sweden’s official statistics. The data utilized have been anonymized and de-identified by Statistics Sweden to protect the privacy and confidentiality of the participants. The authors of this study do not have access to the personal identities of the participants, and the requirement of informed consent was waived by the ethical review board as is customary in similar register studies. Consent for publicationNot applicable. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding Open access funding provided by Stockholm University. This work was supported by the Swedish Research Council for Health, Working Life and Welfare (grant number: 2016-07148_Forte) as a part of the RELINK project at Stockholm University."