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Agenjo González M, Lampaya Nasarre B, Salazar F, Varillas D, Cristobal I. Influence of intrauterine dispositive in human papillomavirus clearance. Eur J Obstet Gynecol Reprod Biol 2018; 232:65-69. [PMID: 30472624 DOI: 10.1016/j.ejogrb.2018.11.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Revised: 11/12/2018] [Accepted: 11/14/2018] [Indexed: 10/27/2022]
Abstract
INTRODUCTION An important inverse relation between IUD use and risk of cervical cancer has been proved. Women who used IUD had half the risk of developing cervical cancer. The mechanism how IUD is a protector factor is still unknown. Could be improving the clearance of HPV infection or stopping progression to cancer from preneoplasic lesion. The aim of the study is to check if IUD increases HPV clearance, that is, checking if after 1 year HPV infection disappears in more patients using IUD than those not using it. STUDY DESIGN This is a cohort case-control prospective study, carried out in Universitary Hospital La Zarzuela in Madrid, Spain, performed between October 2015 and April 2018. No pregnant women between 25-50 years old, with HPV cervical infection were enrolled. We separated the participants into two groups: an IUD group, with women starting using IUD and non IUD group, with women using any other contraceptive method or none. HPV genotyping of cervical cytology samples were performed initially on enrolment day and one year after. RESULTS 254 participants were enrolled at the beginning of the study, 85 in the IUD group and 169 in the control group (non IUD). 179 participants completed the study, 54 (31%) in IUD group and 120 participants in non IUD group (69%). 38 women from IUD group cleared HPV infection (69.5%) and 65 women from control group cleared it (54.2%) (p = 0.044). An association in logistic regression was observed in HPV clearance with different factors. Firstly, higher percentage of patients with IUD clear the HPV infection than those in control group significantly associated (OR = 0.698, CI 95%; 0.251-0.998, p = 0.046). Clearance was higher in patients with low-risk HPV infection comparing with high risk HPV (OR = 1.078, CI 95%; 1.126-4.6.281, p = 0.026) and in patients with only one HPV type than those with more than one (OR = 0.194, CI 95%; 0.084-0.403, p < 0.001). CONCLUSIONS In Spanish women with HPV infection, the HPV clearance between IUD and non IUD groups show results with statistical significance, patients with IUD have higher clearance rates. There were differences also between suffering one HPV type or more than one, and having low-risk HPV or high-risk HPV infection.
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Affiliation(s)
- Marta Agenjo González
- Universitary Hospital La Zarzuela, Pleyades street, 25, 28023, Madrid, Spain; Facultad de Ciencias de la Salud, Universidad Francisco de Vitoria, Pozuelo de Alarcón, Madrid, Spain.
| | - Belén Lampaya Nasarre
- Universitary Hospital La Zarzuela, Pleyades street, 25, 28023, Madrid, Spain; Facultad de Ciencias de la Salud, Universidad Francisco de Vitoria, Pozuelo de Alarcón, Madrid, Spain
| | - Fernando Salazar
- Universitary Hospital La Zarzuela, Pleyades street, 25, 28023, Madrid, Spain; Facultad de Ciencias de la Salud, Universidad Francisco de Vitoria, Pozuelo de Alarcón, Madrid, Spain
| | - David Varillas
- Universitary Hospital La Zarzuela, Pleyades street, 25, 28023, Madrid, Spain; Facultad de Ciencias de la Salud, Universidad Francisco de Vitoria, Pozuelo de Alarcón, Madrid, Spain
| | - Ignacio Cristobal
- Universitary Hospital La Zarzuela, Pleyades street, 25, 28023, Madrid, Spain; Facultad de Ciencias de la Salud, Universidad Francisco de Vitoria, Pozuelo de Alarcón, Madrid, Spain
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Doherty JA, Jensen A, Kelemen LE, Pearce CL, Poole E, Schildkraut JM, Terry KL, Tworoger SS, Webb PM, Wentzensen N. Current Gaps in Ovarian Cancer Epidemiology: The Need for New Population-Based Research. J Natl Cancer Inst 2017; 109:3847624. [PMID: 29117355 DOI: 10.1093/jnci/djx144] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 06/19/2017] [Indexed: 12/25/2022] Open
Abstract
With recent ovarian cancer screening studies showing no clinically significant mortality benefit, preventing this disease, identifying high-risk populations, and extending survival remain priorities. However, several challenges are impeding progress in ovarian cancer research. With most studies capturing exposure information from 10 or more years ago, evaluation of how changing patterns of exposures, such as new oral contraceptive formulations and increased intrauterine device use, might influence ovarian cancer risk and survival is difficult. Risk factors for ovarian cancer should be evaluated in the context of tumor histotypes, which have unique molecular features and cells of origin; this is a task that requires large collaborative studies to achieve meaningful sample sizes. Importantly, identification of novel modifiable risk factors, in addition to those currently known to reduce risk (eg, childbearing, tubal ligation, oral contraceptive use), is needed; this is not feasibly implemented at a population level. In this Commentary, we describe important gaps in knowledge and propose new approaches to advance epidemiologic research to improve ovarian cancer prevention and survival, including updated classification of tumors, collection of data on changing and novel exposures, longer follow-up on existing studies, evaluation of diverse populations, development of better risk prediction models, and collaborating prospectively with consortia to develop protocols for new studies that will allow seamless integration for future pooled analyses.
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Affiliation(s)
| | - Jennifer A Doherty
- Affiliations of authors: Huntsman Cancer Institute, Department of Population Health Sciences, University of Utah, Salt Lake City, UT (JAD); Department of Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark (AJ); Department of Public Health Sciences and Hollings Cancer Center, Medical University of South Carolina, Charleston, SC (LEK); Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI (CLP); Department of Preventive Medicine, Keck School of Medicine, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, CA (CLP); Channing Division of Network Medicine (EP, SST) and Obstetrics and Gynecology Epidemiology Center (KLT), Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA (EP, SST, KLT); Department of Public Health Sciences, University of Virginia, Charlottesville, CA (JMS); Population Health Department, QIMR Berghofer Medical Research Institute, Herston, Australia (PMW); Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD (NW)
| | - Allan Jensen
- Affiliations of authors: Huntsman Cancer Institute, Department of Population Health Sciences, University of Utah, Salt Lake City, UT (JAD); Department of Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark (AJ); Department of Public Health Sciences and Hollings Cancer Center, Medical University of South Carolina, Charleston, SC (LEK); Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI (CLP); Department of Preventive Medicine, Keck School of Medicine, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, CA (CLP); Channing Division of Network Medicine (EP, SST) and Obstetrics and Gynecology Epidemiology Center (KLT), Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA (EP, SST, KLT); Department of Public Health Sciences, University of Virginia, Charlottesville, CA (JMS); Population Health Department, QIMR Berghofer Medical Research Institute, Herston, Australia (PMW); Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD (NW)
| | - Linda E Kelemen
- Affiliations of authors: Huntsman Cancer Institute, Department of Population Health Sciences, University of Utah, Salt Lake City, UT (JAD); Department of Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark (AJ); Department of Public Health Sciences and Hollings Cancer Center, Medical University of South Carolina, Charleston, SC (LEK); Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI (CLP); Department of Preventive Medicine, Keck School of Medicine, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, CA (CLP); Channing Division of Network Medicine (EP, SST) and Obstetrics and Gynecology Epidemiology Center (KLT), Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA (EP, SST, KLT); Department of Public Health Sciences, University of Virginia, Charlottesville, CA (JMS); Population Health Department, QIMR Berghofer Medical Research Institute, Herston, Australia (PMW); Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD (NW)
| | - Celeste L Pearce
- Affiliations of authors: Huntsman Cancer Institute, Department of Population Health Sciences, University of Utah, Salt Lake City, UT (JAD); Department of Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark (AJ); Department of Public Health Sciences and Hollings Cancer Center, Medical University of South Carolina, Charleston, SC (LEK); Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI (CLP); Department of Preventive Medicine, Keck School of Medicine, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, CA (CLP); Channing Division of Network Medicine (EP, SST) and Obstetrics and Gynecology Epidemiology Center (KLT), Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA (EP, SST, KLT); Department of Public Health Sciences, University of Virginia, Charlottesville, CA (JMS); Population Health Department, QIMR Berghofer Medical Research Institute, Herston, Australia (PMW); Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD (NW)
| | - Elizabeth Poole
- Affiliations of authors: Huntsman Cancer Institute, Department of Population Health Sciences, University of Utah, Salt Lake City, UT (JAD); Department of Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark (AJ); Department of Public Health Sciences and Hollings Cancer Center, Medical University of South Carolina, Charleston, SC (LEK); Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI (CLP); Department of Preventive Medicine, Keck School of Medicine, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, CA (CLP); Channing Division of Network Medicine (EP, SST) and Obstetrics and Gynecology Epidemiology Center (KLT), Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA (EP, SST, KLT); Department of Public Health Sciences, University of Virginia, Charlottesville, CA (JMS); Population Health Department, QIMR Berghofer Medical Research Institute, Herston, Australia (PMW); Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD (NW)
| | - Joellen M Schildkraut
- Affiliations of authors: Huntsman Cancer Institute, Department of Population Health Sciences, University of Utah, Salt Lake City, UT (JAD); Department of Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark (AJ); Department of Public Health Sciences and Hollings Cancer Center, Medical University of South Carolina, Charleston, SC (LEK); Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI (CLP); Department of Preventive Medicine, Keck School of Medicine, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, CA (CLP); Channing Division of Network Medicine (EP, SST) and Obstetrics and Gynecology Epidemiology Center (KLT), Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA (EP, SST, KLT); Department of Public Health Sciences, University of Virginia, Charlottesville, CA (JMS); Population Health Department, QIMR Berghofer Medical Research Institute, Herston, Australia (PMW); Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD (NW)
| | - Kathryn L Terry
- Affiliations of authors: Huntsman Cancer Institute, Department of Population Health Sciences, University of Utah, Salt Lake City, UT (JAD); Department of Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark (AJ); Department of Public Health Sciences and Hollings Cancer Center, Medical University of South Carolina, Charleston, SC (LEK); Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI (CLP); Department of Preventive Medicine, Keck School of Medicine, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, CA (CLP); Channing Division of Network Medicine (EP, SST) and Obstetrics and Gynecology Epidemiology Center (KLT), Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA (EP, SST, KLT); Department of Public Health Sciences, University of Virginia, Charlottesville, CA (JMS); Population Health Department, QIMR Berghofer Medical Research Institute, Herston, Australia (PMW); Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD (NW)
| | - Shelley S Tworoger
- Affiliations of authors: Huntsman Cancer Institute, Department of Population Health Sciences, University of Utah, Salt Lake City, UT (JAD); Department of Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark (AJ); Department of Public Health Sciences and Hollings Cancer Center, Medical University of South Carolina, Charleston, SC (LEK); Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI (CLP); Department of Preventive Medicine, Keck School of Medicine, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, CA (CLP); Channing Division of Network Medicine (EP, SST) and Obstetrics and Gynecology Epidemiology Center (KLT), Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA (EP, SST, KLT); Department of Public Health Sciences, University of Virginia, Charlottesville, CA (JMS); Population Health Department, QIMR Berghofer Medical Research Institute, Herston, Australia (PMW); Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD (NW)
| | - Penelope M Webb
- Affiliations of authors: Huntsman Cancer Institute, Department of Population Health Sciences, University of Utah, Salt Lake City, UT (JAD); Department of Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark (AJ); Department of Public Health Sciences and Hollings Cancer Center, Medical University of South Carolina, Charleston, SC (LEK); Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI (CLP); Department of Preventive Medicine, Keck School of Medicine, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, CA (CLP); Channing Division of Network Medicine (EP, SST) and Obstetrics and Gynecology Epidemiology Center (KLT), Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA (EP, SST, KLT); Department of Public Health Sciences, University of Virginia, Charlottesville, CA (JMS); Population Health Department, QIMR Berghofer Medical Research Institute, Herston, Australia (PMW); Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD (NW)
| | - Nicolas Wentzensen
- Affiliations of authors: Huntsman Cancer Institute, Department of Population Health Sciences, University of Utah, Salt Lake City, UT (JAD); Department of Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark (AJ); Department of Public Health Sciences and Hollings Cancer Center, Medical University of South Carolina, Charleston, SC (LEK); Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI (CLP); Department of Preventive Medicine, Keck School of Medicine, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, CA (CLP); Channing Division of Network Medicine (EP, SST) and Obstetrics and Gynecology Epidemiology Center (KLT), Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA (EP, SST, KLT); Department of Public Health Sciences, University of Virginia, Charlottesville, CA (JMS); Population Health Department, QIMR Berghofer Medical Research Institute, Herston, Australia (PMW); Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD (NW)
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Shafrir AL, Schock H, Poole EM, Terry KL, Tamimi RM, Hankinson SE, Rosner BA, Tworoger SS. A prospective cohort study of oral contraceptive use and ovarian cancer among women in the United States born from 1947 to 1964. Cancer Causes Control 2017; 28:371-383. [PMID: 28290016 DOI: 10.1007/s10552-017-0876-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Accepted: 02/24/2017] [Indexed: 11/26/2022]
Abstract
PURPOSE Oral contraceptives (OCs) have been consistently associated with a reduced ovarian cancer risk; however, most previous studies included women in older birth cohorts using high-dose OC formulations. We assessed OC use, including type and dose, and ovarian cancer risk among women born between 1947 and 1964 using more recent formulations. METHODS We included 110,929 Nurses' Health Study II participants. Women reported duration of OC use and brands used from age 13 to baseline (1989) and every 2 years thereafter through 2009. We categorized brands by estrogen and progestin type, dose, and potency, and used Cox proportional hazards models, adjusted for age, calendar time, reproductive factors, and body mass index, to assess associations with ovarian cancer. RESULTS Over 2,178,679 person-years of follow-up, we confirmed 281 cases. At baseline, 83% of participants reported ever using OCs. Compared to never use, we observed an increased risk of ovarian cancer with ≤6 months of OC use (HR 1.82; 95% CI 1.13-2.93) but a non-significant 57% (95% CI 0.18-1.03) decreased risk with ≥15 years of OC use. The increased risk among short-term users (≤1 year) was restricted to OCs containing mestranol (HR 1.83; 95% CI 1.16-2.88) and first-generation progestin (HR 1.72; 95% CI 1.11-2.65). CONCLUSION The associations between OCs and ovarian cancer observed for this younger birth cohort differ substantially from the results of previous cohort studies, possibly reflecting changes in OC formulations and use patterns over time, although these results could be due to chance. Additional studies should evaluate newer OC formulations and ovarian cancer risk.
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Affiliation(s)
- Amy L Shafrir
- Division of Adolescent/Young Adult Medicine, Boston Center for Endometriosis, Boston Children's Hospital, 1 Autumn Street, 5th Floor, Boston, MA, 02115, USA.
- Department of Pediatrics, Harvard Medical School, Boston, MA, USA.
| | - Helena Schock
- Division of Cancer Epidemiology, German Cancer Research Center, Heidelberg, Germany
| | - Elizabeth M Poole
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Kathryn L Terry
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Obstetrics and Gynecology Epidemiology Center, Department of Obstetrics and Gynecology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Rulla M Tamimi
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Susan E Hankinson
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Department of Biostatistics and Epidemiology, School of Public Health and Health Sciences, University of Massachusetts, Amherst, MA, USA
| | - Bernard A Rosner
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Shelley S Tworoger
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
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