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Modugno F, Fu Z, Jordan SJ, Group A, Chang-Claude J, Fortner RT, Goodman MT, Moysich KB, Schildkraut JM, Berchuck A, Bandera EV, Qin B, Sutphen R, McLaughlin JR, Menon U, Ramus SJ, Gayther SA, Gentry-Maharaj A, Karpinskyj C, Pearce CL, Wu AH, Risch HA, Webb PM. Offspring sex and risk of epithelial ovarian cancer: a multinational pooled analysis of 12 case-control studies. Eur J Epidemiol 2020; 35:1025-1042. [PMID: 32959149 PMCID: PMC7981786 DOI: 10.1007/s10654-020-00682-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 08/26/2020] [Indexed: 12/18/2022]
Abstract
While childbearing protects against risk of epithelial ovarian cancer (EOC), few studies have explored the impact on maternal EOC risk of sex of offspring, which may affect the maternal environment during pregnancy. We performed a pooled analysis among parous participants from 12 case-controls studies comprising 6872 EOC patients and 9101 controls. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated using multivariable logistic regression for case-control associations and polytomous logistic regression for histotype-specific associations, all adjusted for potential confounders. In general, no associations were found between offspring sex and EOC risk. However, compared to bearing only female offspring, bearing one or more male offspring was associated with increased risk of mucinous EOC (OR = 1.45; 95% CI = 1.01-2.07), which appeared to be limited to women reporting menarche before age 13 compared to later menarche (OR = 1.71 vs 0.99; P-interaction = 0.02). Bearing increasing numbers of male offspring was associated with greater risks of mucinous tumors (OR = 1.31, 1.84, 2.31, for 1, 2 and 3 or more male offspring, respectively; trend-p = 0.005). Stratifying by hormonally-associated conditions suggested that compared to bearing all female offspring, bearing a male offspring was associated with lower risk of endometrioid cancer among women with a history of adult acne, hirsutism, or polycystic ovary syndrome (OR = 0.49, 95% CI = 0.28-0.83) but with higher risk among women without any of those conditions (OR = 1.64 95% CI = 1.14-2.34; P-interaction = 0.003). Offspring sex influences the childbearing-EOC risk relationship for specific histotypes and conditions. These findings support the differing etiologic origins of EOC histotypes and highlight the importance of EOC histotype-specific epidemiologic studies. These findings also suggest the need to better understand how pregnancy affects EOC risk.
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Grants
- R03 CA092776 NCI NIH HHS
- 191. 211 and 182 Cancer Council NSW
- PPD/RPCI.07 Ovarian Cancer Research Fund
- K22 CA138563 NCI NIH HHS
- R01 CA080742 NCI NIH HHS
- NIH-K07 CA095666, R01-CA83918, NIH-K22-CA138563, P30CA072720 NCI NIH HHS
- K07 CA080668 NCI NIH HHS
- R01-CA58598, N01-CN-55424 and N01-PC-67001 NIH HHS
- P01CA17054, P30CA14089, R01CA61132, N01PC67010, R03CA113148, R03CA115195, N01CN025403, NIH HHS
- 6613-1415-53 National Health Research and Development Program, Health Canada
- R01 CA076016 NCI NIH HHS
- R03 CA110797 NCI NIH HHS
- R01 CA063682 NCI NIH HHS
- K07 CA095666 NCI NIH HHS
- AOCS Peter MacCallum Cancer Centre
- R01 CA126841 NCI NIH HHS
- R01-CA074850; R01-CA080742 NIH HHS
- K07-CA080668,R01-CA95023, MO1-RR000056 R01-CA126841 NCI NIH HHS
- N01 CN025403 NCI NIH HHS
- N01 PC067010 NCI NIH HHS
- R01 CA106414 NCI NIH HHS
- 00-01389V-20170, 2II0200 California Cancer Research Program
- M01 RR000056 NCRR NIH HHS
- P30 CA072720 NCI NIH HHS
- R01 CA095023 NCI NIH HHS
- 199600, 400413 and 105 400281 National Health & Medical Research Council of Australia
- R21 CA095113 NCI NIH HHS
- R03 CA113148 NCI NIH HHS
- R01 CA058598 NCI NIH HHS
- MC_UU_12023/20 Medical Research Council
- R01 CA074850 NCI NIH HHS
- R01 CA063678 NCI NIH HHS
- MR_UU_12023 MRF
- R01 CA063678 and R01 CA063682 NIH HHS
- 01 GB 9401 German Federal Ministry of Education and Research
- P30 CA014089 NCI NIH HHS
- R01 CA083918 NCI NIH HHS
- R03 CA115195 NCI NIH HHS
- R03 CA115214 NCI NIH HHS
- DAMD17-02-1-0669 DOD Peer Reviewed Cancer Research Program
- R01-CA074850; R01-CA080742); Division of Cancer Epidemiology and Genetics, National Cancer Institute
- DAMD17-01-1- 104 0729 Medical Research and Materiel Command
- P01 CA017054 NCI NIH HHS
- R13 CA110770 NCI NIH HHS
- R01-CA76016 NIH HHS
- R01-CA106414-A2 NIH HHS
- CRTG-00-196-01-CCE American Cancer Society
- DAMD17-98-1-8659 DOD Peer Reviewed Cancer Research Program
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Affiliation(s)
- Francesmary Modugno
- Womens Cancer Research Center, Magee-Womens Research Institute and Hillman Cancer Center, Pittsburgh, PA, 15213, USA.
- Division of Gynecologic Oncology, Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh School of Medicine, Magee-Womens Hospital of UPMC, Suite 2130, 300 Halket Street, Pittsburgh, PA, 15213, USA.
| | - Zhuxuan Fu
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, 15213, USA
| | - Susan J Jordan
- School of Public Health, University of Queensland, Herston, QLD, Australia
- Population Health Department, QIMR Berghofer Medical Research Institute, Herston, QLD, 4006, Australia
| | - Aocs Group
- Population Health Department, QIMR Berghofer Medical Research Institute, Herston, QLD, 4006, Australia
- Peter MacCallum Cancer Center, Melbourne, VIC, 3000, Australia
- Centre for Cancer Research, The Westmead Institute for Medical Research, The University of Sydney, Sydney, NSW, 2145, Australia
| | - Jenny Chang-Claude
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), 69120, Heidelberg, Germany
- Cancer Epidemiology Group, University Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Renée T Fortner
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), 69120, Heidelberg, Germany
| | - Marc T Goodman
- Cancer Prevention and Genetics Program, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
| | - Kirsten B Moysich
- Division of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, NY, 14263, USA
| | - Joellen M Schildkraut
- Department of Public Health Sciences, University of Virginia, Box 800717, Charlottesville, VA, 22908, USA
| | - Andrew Berchuck
- Department of Gynecologic Oncology, Duke University Medical Center, DUMC 3079, Durham, NC, 27710, USA
| | - Elisa V Bandera
- Cancer Prevention and Control Program, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, 08903, USA
| | - Bo Qin
- Cancer Prevention and Control Program, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, 08903, USA
| | - Rebecca Sutphen
- Epidemiology Center, College of Medicine, University of South Florida, Tampa, FL, 33612, USA
| | - John R McLaughlin
- Public Health Ontario, Samuel Lunenfeld Research Institute, Toronto, ON, M5T3L9, Canada
| | - Usha Menon
- MRC Clinical Trials Unit at UCL, Institute of Clinical Trials and Methodology, University College London, London, WC1V 6LJ, UK
| | - Susan J Ramus
- Faculty of Medicine, School of Women's and Children's Health, University of NSW Sydney, Sydney, NSW, 2052, Australia
- Adult Cancer Program, Lowy Cancer Research Centre, University of NSW Sydney, Sydney, NSW, 2052, Australia
| | - Simon A Gayther
- Center for Bioinformatics and Functional Genomics and the Cedars Sinai Genomics Core, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
| | - Aleksandra Gentry-Maharaj
- MRC Clinical Trials Unit at UCL, Institute of Clinical Trials and Methodology, University College London, London, WC1V 6LJ, UK
| | - Chloe Karpinskyj
- MRC Clinical Trials Unit at UCL, Institute of Clinical Trials and Methodology, University College London, London, WC1V 6LJ, UK
| | - Celeste L Pearce
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI, 48109, USA
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, CA, 90033, USA
| | - Anna H Wu
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, 90033, USA
| | - Harvey A Risch
- Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, CT, 06510, USA
| | - Penelope M Webb
- Population Health Department, QIMR Berghofer Medical Research Institute, Herston, QLD, 4006, Australia
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Fu Z, Moysich K, Ness RB, Modugno F. Gender of offspring and risk of ovarian cancer: The HOPE study. Cancer Epidemiol 2019; 64:101646. [PMID: 31835157 DOI: 10.1016/j.canep.2019.101646] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 11/20/2019] [Accepted: 11/21/2019] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To examine the association between gender of offspring and epithelial ovarian cancer (EOC). METHODS We compared gender of offspring between 664 incident EOC cases and 1531 controls participating in a population-based study conducted in Pennsylvania, Ohio, and New York from 2003-2008. Multivariable unconditional logistic regression was used to calculate odds ratios (ORs) and 95 % confidence intervals (CIs) adjusting for potential confounders. RESULTS Bearing a male offspring was associated with an 8 % lower EOC risk; bearing all boys was associated with an 11 % lower risk. Compared to bearing all girls, bearing all boys was associated with a 14 % decrease risk. Increasing number of male offspring increased the protective effect (adjusted-OR: 0.92, 0.91, 0.84, for 1, 2, and 3+ boys compared to all girls). Results where similar when limiting cases to invasive disease and to the high-grade serous histotype. CONCLUSION Fetal sex, which influences maternal hormonal milieu, may impact EOC risk.
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Affiliation(s)
- Zhuxuan Fu
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA.
| | | | - Roberta B Ness
- University of Texas School of Public Health, Houston, TX, USA.
| | - Francesmary Modugno
- Womens Cancer Research Program, Magee-Womens Research Institute and UPMC Hillman Cancer Center, Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
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Merritt MA, De Pari M, Vitonis AF, Titus LJ, Cramer DW, Terry KL. Reproductive characteristics in relation to ovarian cancer risk by histologic pathways. Hum Reprod 2013; 28:1406-17. [PMID: 23315066 DOI: 10.1093/humrep/des466] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
STUDY QUESTION Do reproductive risk factor associations differ across subgroups of invasive epithelial ovarian cancer (EOC) defined by the dualistic model (type I/II) or a histologic pathway-based classification? SUMMARY ANSWER Associations with parity, history of endometriosis, tubal ligation and hysterectomy were found to differ in the context of the type I/II and the histologic pathways classification of ovarian cancer. WHAT IS KNOWN ALREADY Shared molecular alterations and candidate precursor lesions suggest that tumor histology and grade may be used to classify ovarian tumors into likely etiologic pathways. DESIGN This case-control study included 1571 women diagnosed with invasive EOC and 2100 population-based controls that were enrolled from 1992 to 2008. Reproductive risk factors as well as other putative risk factors for ovarian cancer were assessed through in-person interviews. PARTICIPANTS/MATERIALS, SETTING, METHODS Eligible cases were diagnosed with incident ovarian cancer, were aged 18 and above and resided in eastern Massachusetts or New Hampshire, USA. Controls were identified through random digit dialing, drivers' license and town resident lists and were frequency matched with the cases based on age and study center. MAIN RESULTS AND THE ROLE OF CHANCE We used polytomous logistic regression to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for type I/II EOC or using a pathway-based grouping of histologic subtypes. In multivariate analyses, we observed that having a history of endometriosis (OR = 1.92, 95% CI: 1.36-2.71) increased the risk for a type I tumor. Factors that were strongly inversely associated with risk for a type I tumor included parity (≥ 3 versus 0 children, OR = 0.15, 95% CI: 0.11-0.21), having a previous tubal ligation (OR = 0.40, 95% CI: 0.26-0.60) and more weakly hysterectomy (OR = 0.71, 95% CI: 0.45-1.13). In analyses of histologic pathways, parity (≥ 3 versus 0 children, OR = 0.13, 95% CI: 0.10-0.18) and having a previous tubal ligation (OR = 0.41, 95% CI: 0.28-0.60) or hysterectomy (OR = 0.54, 95% CI: 0.34-0.86) were inversely associated with risk of endometrioid/clear cell tumors. Having a history of endometriosis strongly increased the risk for endometrioid/clear cell tumors (OR = 2.41, 95% CI: 1.78-3.26). We did not observe significant differences in the risk associations across these tumor classifications for age at menarche, menstrual cycle length or infertility. LIMITATIONS, REASONS FOR CAUTION A potential limitation of this study is that dividing the cases into subgroups may limit the power of these analyses, particularly for the less common tumor types. Since cases were enrolled after their diagnosis, it is possible that the most aggressive cases were not included in the study. WIDER IMPLICATIONS OF THE FINDINGS This study provides insights about the role of reproductive factors in relation to risk of pathway-based subgroups of ovarian cancer that with further confirmation may assist with the development of improved strategies for the prevention of these different tumor types. STUDY FUNDING/COMPETING INTEREST(S) This research is funded by grants from the National Cancer Institute, the Department of Defense Ovarian Cancer Research Program and the Ovarian Cancer Research Fund. The authors have no competing interests to declare. TRIAL REGISTRATION NUMBER Not applicable.
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Affiliation(s)
- M A Merritt
- Department of Epidemiology, Harvard School of Public Health, Boston, MA, USA.
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Jordan SJ, Green AC, Nagle CM, Olsen CM, Whiteman DC, Webb PM. Beyond parity: association of ovarian cancer with length of gestation and offspring characteristics. Am J Epidemiol 2009; 170:607-14. [PMID: 19638480 DOI: 10.1093/aje/kwp185] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Women with higher parity have a lower risk of ovarian cancer possibly because of pregnancy hormones, but the specific effect of different pregnancy hormones on ovarian cancer risk is not clear. Some clarification might be gained by considering situations where hormone levels vary between pregnancies. Study participants from an Australian population-based, case-control study of epithelial ovarian cancer (2001-2005) completed a reproductive/lifestyle questionnaire. The authors included 1,203 cases and 1,286 controls with at least 1 birth and, using multiple logistic regression, calculated odds ratios and 95% confidence intervals to investigate the effects of pregnancy-related factors on cancer risk. Women who had 1 or more preterm births had higher risks of ovarian cancer than those who had only full-term births (odds ratio (OR) = 1.48, 95% confidence interval (CI): 1.02, 2.15). The authors also found that bearing only boys was associated with a 2-fold increased risk of mucinous ovarian cancer (OR = 2.19, 95% CI: 1.15, 4.17). There was no association between multiple pregnancy and ovarian cancer (for any multiple pregnancy vs. only singleton pregnancies: OR = 1.22, 95% CI: 0.74, 2.02). The results suggest that pregnancies associated with differing hormonal milieux have different effects on ovarian cancer risk and that some of these associations may vary with histologic subtype.
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Affiliation(s)
- Susan J Jordan
- School of Population Health, University of Queensland, Public Health Building, Herston Road, Herston, QLD 4006, Australia.
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Birth spacing and maternal risk of invasive epithelial ovarian cancer in a Swedish nationwide cohort. Cancer Causes Control 2008; 19:1131-7. [PMID: 18509730 DOI: 10.1007/s10552-008-9178-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2008] [Accepted: 05/13/2008] [Indexed: 10/22/2022]
Abstract
OBJECTIVE Pregnancies reduce the risk of ovarian cancer, and among multiparous women, levels of circulating progesterone might be higher during pregnancies with wider birth spacing. We hypothesized that childbirth with wider birth spacing might reduce maternal risk of invasive epithelial ovarian cancer more than births with narrower spacing. METHODS We conducted a case-control study nested in a nationwide cohort of Swedish women from 1961 to 2001. We selected five individually age-matched controls for each case of invasive epithelial ovarian cancer, and analysis for the effect of birth spacing was performed for 5,341 cases and 29,047 controls. We applied unconditional logistic regression analyses adjusting for age, ages at childbirth, educational level, area of residence, and gender of offspring. RESULTS Relative risk of invasive epithelial ovarian cancer associated with each one-year increase in average birth spacing is 1.00 (95% CI = 0.98-1.01) among all women and 0.99 (0.98-1.01) among those born before 1935 and less likely to have used oral contraceptives. Further analyses on the biparous and triparous women did not find a consistent association between birth spacing and the risk of ovarian cancer. CONCLUSIONS Birth spacing is unlikely to be a major determinant underlying the protective effects of childbirth on ovarian cancer risk.
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