Journal article

Comparative inequalities in child dental caries across four countries: Examination of international birth cohorts and implications for oral health policy

S Goldfeld, KL Francis, E O'Connor, J Ludvigsson, T Faresjö, B Nikiema, L Gauvin, J Yang-Huang, YA Awad, JJ McGrath, JD Goldhaber-Fiebert, Å Faresjo, H Raat, L Kragt, FK Mensah

Plos One | PUBLIC LIBRARY SCIENCE | Published : 2022

Abstract

Child dental caries (i.e., cavities) are a major preventable health problem in most highincome countries. The aim of this study was to compare the extent of inequalities in child dental caries across four high-income countries alongside their child oral health policies. Coordinated analyses of data were conducted across four prospective population-based birth cohorts (Australia, n = 4085, born 2004; Québec, Canada, n = 1253, born 1997; Rotterdam, the Netherlands, n = 6690, born 2002; Southeast Sweden, n = 7445, born 1997), which enabled a high degree of harmonization. Risk ratios (adjusted) and slope indexes of inequality were estimated to quantify social gradients in child dental caries acc..

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Grants

Awarded by Canadian Institutes of Health Research


Awarded by Netherlands Organisation for Health Research and Development (ZonMw)


Awarded by Swedish Research Council


Awarded by Wallenberg Foundation


Awarded by Swedish Council for Working Life and Social Research


Awarded by Australian National Health and Medical Research Council (NHMRC) Practitioner Fellowship


Awarded by NHMRC Career Development Fellowship


Funding Acknowledgements

EPOCH was partly supported by Canadian Institutes of Health Research (J. McGrath OCO-79897, MOP-89886, MSH-95353; L. Seguin ROG-110537). Longitudinal Study of Australian Children (LSAC) was initiated and funded by Australian Government Department of Social Services, with additional funding from partner organizations Australian Institute of Family Studies (AIFS) and Australian Bureau of Statistics (ABS). This paper uses unit record data from Growing Up in Australia, the Longitudinal Study of Australian Children. The database of fluoride levels in water is maintained at the Australian Research Centre for Population Oral Health. The study was conducted in partnership with the Department of Social Services (DSS), the Australian Institute of Family Studies (AIFS) and the Australian Bureau of Statistics (ABS). The findings and views reported in this paper are those of the authors and should not be attributed to the DSS, the AIFS or the ABS. Generation R Study (GenR) was made possible by financial support from Erasmus Medical Center, Rotterdam; Erasmus University Rotterdam; Netherlands Organisation for Health Research and Development (ZonMw; additional grant received by V. Jaddoe, ZonMw 907.00303, 916.10159); Netherlands Organisation for Scientific Research (NWO); Ministry of Health, Welfare and Sport; and, Ministry of Youth and Families. GenR is conducted by Erasmus Medical Center in close collaboration with the School of Law and Faculty of Social Sciences of the Erasmus University Rotterdam, the Municipal Health Service Rotterdam area, Rotterdam, the Rotterdam Homecare Foundation, Rotterdam and the Stichting Trombosedienst & Artsenlaboratorium Rijnmond (STAR-MDC), Rotterdam; we gratefully acknowledge the contribution of children and parents, general practitioners, hospitals, midwives and pharmacies in Rotterdam. Que ' bec Longitudinal Study of Child Development (QLSCD) 1996-2014 cohort was principally funded by l'Institut de la statistique du Quebec through partnership with Fondation Lucie et Andre Chagnon, Ministere de l'Education et de l'Enseignement superieur, Ministere de la Santeet des Services sociaux, Ministere de la Famille, GRIP Research Unit on Children's Psychosocial Maladjustment, QUALITY Cohort Collaborative Group, le Centre hospitalier universitaire SainteJustine, Institut de recherche Robert-Sauveen santeet en securiteau travail, l'Institut de recherche en santepublique de l'Universite de Montreal, Centre de recherche du Centre hospitalier de l'Universite de Montreal (CRCHUM), Fonds de recherche du Quebec Sante (FRQS), Fonds de recherche du Quebec Socie te et culture (FRQSC), Social Sciences and Humanities Research Council (SSHRC), and Canadian Institutes of Health Research (MOP-123079, HDF70335). The paper used unit record data from the QLSCD (ELDEQ -Enquete longitudinale des enfants du Quebec). Data for the QLSCD were collected by the Institut de la Statistique du Quebec, Direction des enquetes longitudinales et sociales. ABIS (Alla Barn i Sydostra Sverige; All Babies in Southeast Sweden) and this research were supported in part by the County Council of Ostergotland, Swedish Research Council (K200572X-11242-11A and K2008-69X-20826-01-4), the Swedish Child Diabetes Foundation (Barndiabetesfonden), Juvenile Diabetes Research Foundation, Wallenberg Foundation (K 98-99D12813-01A), Medical Research Council of Southeast Sweden (FORSS), the Swedish Council for Working Life and Social Research (FAS20041775), and Ostgota Brandstodsbolag. Johnny Ludvisson founded the ABIS Cohort. Sharon Goldfeld is supported by Australian National Health and Medical Research Council (NHMRC) Practitioner Fellowship 1155290. Fiona Mensah was supported by NHMRC Career Development Fellowship 1111160. Research at the Murdoch Children's Research Institute is supported by the Victorian Government's Operational Infrastructure Program. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.