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Mendelian randomization study of maternal coffee consumption and its influence on birthweight, stillbirth, miscarriage, gestational age and pre-term birth

International journal of epidemiology, 2023-02, Vol.52 (1), p.165-177 [Peer Reviewed Journal]

The Author(s) 2022. Published by Oxford University Press on behalf of the International Epidemiological Association. ;info:eu-repo/semantics/openAccess ;The Author(s) 2022. Published by Oxford University Press on behalf of the International Epidemiological Association. 2022 ;ISSN: 0300-5771 ;EISSN: 1464-3685 ;DOI: 10.1093/ije/dyac121 ;PMID: 35679582

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  • Title:
    Mendelian randomization study of maternal coffee consumption and its influence on birthweight, stillbirth, miscarriage, gestational age and pre-term birth
  • Author: Brito Nunes, Caroline ; Huang, Peiyuan ; Wang, Geng ; Lundberg, Mischa ; D'Urso, Shannon ; Wootton, Robyn E ; Borges, Maria Carolina ; Lawlor, Deborah A ; Warrington, Nicole M ; Evans, David M ; Hwang, Liang-Dar ; Moen, Gunn-Helen
  • Subjects: Abortion, Spontaneous - epidemiology ; Birth Weight ; Child ; Coffee - adverse effects ; Female ; Genome-Wide Association Study ; Gestational Age ; Humans ; Longitudinal Studies ; Mendelian Randomization Analysis ; Perinatal Epidemiology ; Pregnancy ; Stillbirth - epidemiology ; Stillbirth - genetics ; Term Birth
  • Is Part Of: International journal of epidemiology, 2023-02, Vol.52 (1), p.165-177
  • Description: Coffee consumption has been associated with several adverse pregnancy outcomes, although data from randomized-controlled trials are lacking. We investigate whether there is a causal relationship between coffee consumption and miscarriage, stillbirth, birthweight, gestational age and pre-term birth using Mendelian randomization (MR). A two-sample MR study was performed using summary results data from a genome-wide association meta-analysis of coffee consumption (N = 91 462) from the Coffee and Caffeine Genetics Consortium. Outcomes included self-reported miscarriage (N = 49 996 cases and 174 109 controls from a large meta-analysis); the number of stillbirths [N = 60 453 from UK Biobank (UKBB)]; gestational age and pre-term birth (N = 43 568 from the 23andMe, Inc cohort) and birthweight (N = 297 356 reporting own birthweight and N = 210 248 reporting offspring's birthweight from UKBB and the Early Growth Genetics Consortium). Additionally, a one-sample genetic risk score (GRS) analysis of coffee consumption in UKBB women (N up to 194 196) and the Avon Longitudinal Study of Parents and Children (N up to 6845 mothers and 4510 children) and its relationship with offspring outcomes was performed. Both the two-sample MR and one-sample GRS analyses showed no change in risk of sporadic miscarriages, stillbirths, pre-term birth or effect on gestational age connected to coffee consumption. Although both analyses showed an association between increased coffee consumption and higher birthweight, the magnitude of the effect was inconsistent. Our results suggest that coffee consumption during pregnancy might not itself contribute to adverse outcomes such as stillbirth, sporadic miscarriages and pre-term birth or lower gestational age or birthweight of the offspring.
  • Publisher: England: Oxford University Press
  • Language: English;Norwegian
  • Identifier: ISSN: 0300-5771
    EISSN: 1464-3685
    DOI: 10.1093/ije/dyac121
    PMID: 35679582
  • Source: GFMER Free Medical Journals
    MEDLINE
    NORA Norwegian Open Research Archives
    Alma/SFX Local Collection
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