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L'Espérance K, Abrahamowicz M, O'Loughlin J, Koushik A. Childhood body fatness and the risk of epithelial ovarian cancer: A population-based case-control study in Montreal, Canada. Prev Med 2024; 178:107794. [PMID: 38072312 DOI: 10.1016/j.ypmed.2023.107794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 11/14/2023] [Accepted: 12/01/2023] [Indexed: 12/17/2023]
Abstract
OBJECTIVE To assess the association between childhood body fatness and epithelial ovarian cancer (EOC), and whether this association differs by type of EOC. METHODS Using data from a population-based case-control study (497 cases and 902 controls) in Montreal, Canada conducted 2011-2016, we examined the association between childhood body fatness and EOC, overall and separately for invasive vs. borderline EOCs. A figure rating scale was used to measure body fatness at ages 5 and 10. Multivariable logistic regression was used to estimate adjusted odds ratios (aORs) and 95% confidence intervals (95% CI). Quantitative bias analyses were conducted to assess the impact of exposure misclassification and non-participation. RESULTS The aOR (95% CI) of overall EOC for high vs. low body fatness was 1.07 (0.85-1.34) at age 5 and 1.28 (0.98-1.68) at age 10. The associations were stronger for invasive EOC, specifically the endometrioid histological type. For borderline cancers, the aORs were below the null value with wide confidence intervals. Bias analyses did not reveal a strong influence of non-participation. Non-differential exposure misclassification may have biased aORs towards the null for invasive cancers but did not appear to have an appreciable influence on the aORs for borderline cancers. CONCLUSIONS Childhood body fatness may be a risk factor for invasive EOC in later adult life. Our study highlights the potential importance of examining early life factors for a comprehensive understanding of EOC development.
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Affiliation(s)
- Kevin L'Espérance
- Université de Montréal Hospital Research Centre (CRCHUM), 850, rue Saint-Denis, Montréal, Québec H2X 0A9, Canada; Department of Social and Preventive Medicine, Université de Montréal, 7101, avenue du Parc, Montréal, Québec H3N 1X9, Canada
| | - Michal Abrahamowicz
- Centre for Outcomes Research and Evaluation and Division of Clinical Epidemiology, 1001, boulevard Décarie, Montréal, Québec H4A 3J1, Canada; Department of Epidemiology, Biostatistics and Occupational Health, Faculty of Medicine and Health Sciences, McGill University, 2001, avenue McGill College, Montréal, Québec H3A 1Y7, Canada
| | - Jennifer O'Loughlin
- Université de Montréal Hospital Research Centre (CRCHUM), 850, rue Saint-Denis, Montréal, Québec H2X 0A9, Canada; Department of Social and Preventive Medicine, Université de Montréal, 7101, avenue du Parc, Montréal, Québec H3N 1X9, Canada
| | - Anita Koushik
- Université de Montréal Hospital Research Centre (CRCHUM), 850, rue Saint-Denis, Montréal, Québec H2X 0A9, Canada; Department of Social and Preventive Medicine, Université de Montréal, 7101, avenue du Parc, Montréal, Québec H3N 1X9, Canada; Gerald Bronfman Department of Oncology, Faculty of Medicine and Health Sciences, McGill University, 5100 de Maisonneuve Blvd. West, Suite 720, Montréal, Québec H4A 3T2, Canada; St. Mary's Research Centre, 3830 Lacombe Ave, Montréal, Québec, H3T 1M5, Canada.
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