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DC Field | Value | Language |
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dc.contributor | Sistema FMUSP-HC: Faculdade de Medicina da Universidade de São Paulo (FMUSP) e Hospital das Clínicas da FMUSP | |
dc.contributor.author | CONZ, Livia | |
dc.contributor.author | MOTA, Bruna Salani | |
dc.contributor.author | BAHAMONDES, Luis | |
dc.contributor.author | DORIA, Maira Teixeira | |
dc.contributor.author | DERCHAIN, Sophie Francoise Mauricette | |
dc.contributor.author | RIEIRA, Rachel | |
dc.contributor.author | SARIAN, Luis Otavio | |
dc.date.accessioned | 2020-08-20T13:27:06Z | - |
dc.date.available | 2020-08-20T13:27:06Z | - |
dc.date.issued | 2020 | |
dc.identifier.citation | ACTA OBSTETRICIA ET GYNECOLOGICA SCANDINAVICA, v.99, n.8, p.970-982, 2020 | |
dc.identifier.issn | 0001-6349 | |
dc.identifier.uri | https://observatorio.fm.usp.br/handle/OPI/37106 | - |
dc.description.abstract | Introduction Epidemiological studies have shown that some hormonal contraceptive methods are associated with increased breast cancer risk, especially if used over long periods. Our objective was to conduct a systematic review and meta-analysis of the literature on the risk of breast cancer development in women using the 52-mg levonorgestrel-releasing intrauterine system (LNG-IUS). Material and methods We performed a thorough review of peer-reviewed publications from 10 January 1999, through 31 July 2019, using combinations of search terms for breast cancer risk and LNG-IUS in the Medline, EMBASE, LILACS (Latin American and Caribbean Health Sciences Literature), and Scielo databases. This review was registered in PROSPERO (CRD42017059076). Studies reporting breast cancer risk estimates among healthy users of LNG-IUS were included according to the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-analysis) criteria. Two authors performed data extraction, and a third author resolved disagreements. The quality of evidence was evaluated using the Downs and Black instrument. A funnel plot was generated, and a linear regression test of funnel plot asymmetry was used to assess publication bias. Finally, we performed a random-effects model (owing to high study heterogeneity) meta-analysis of 7 suitable studies, stratified by the age distribution of patients (<50 years, >= 50 years, and mixed). Results We identified 96 studies and manually cross-referenced and excluded duplicate articles. Seventy articles were excluded on the basis of the inclusion and exclusion criteria, resulting in the assessment of 26 full-text articles. Eight articles were considered adequate for inclusion in this systematic review, and 7 studies were included in the meta-analysis. Three publications were case-control studies and 5 were cohort studies. According to the Downs and Black instrument, 5 studies were rated as ""good"" and 3 studies were deemed ""fair"". Our meta-analysis results indicated increased breast cancer risk in LNG-IUS users: for all women, odds ratio (OR) = 1.16 (95% CI 1.06-1.28, I-2 = 78%, P < .01); for women aged <50 years, OR = 1.12 (95% CI 1.02-1.22, I-2 = 66%, P = .02); and for women aged >= 50 years, OR = 1.52 (95% CI 1.34-1.72, I-2 = 0%, P = .84). Conclusions Current evidence suggests that LNG-IUS users have an increased breast cancer risk regardless of age and indication. The effect of LNG-IUS on breast cancer risk seems to be larger in older users. However, our systematic review detected methodological issues across the available studies, and confounding factors may be responsible for at least a fraction of the risk effects associated with LNG-IUS use. Nevertheless, users of LNG-IUS should be aware of these trends. We believe that caution is needed, and risks should be balanced against proven health benefits (eg effective treatment of heavy menstrual bleeding and avoidance of surgical interventions), when prescribing LNG-IUS for long periods of use, especially in women with other known breast cancer risk factors such as old age, obesity, and familial predisposition. | eng |
dc.description.sponsorship | Fundacao de Apoio a Pesquisa do Estado de Sao Paulo (FAPESP)Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [2015/20504-9] | |
dc.description.sponsorship | Brazilian National Council for Scientific and Technological DevelopmentNational Council for Scientific and Technological Development (CNPq) [CNPq 308888/2017-0] | |
dc.language.iso | eng | |
dc.publisher | WILEY | eng |
dc.relation.ispartof | Acta Obstetricia et Gynecologica Scandinavica | |
dc.rights | restrictedAccess | eng |
dc.subject | breast cancer | eng |
dc.subject | contraception | eng |
dc.subject | dysmenorrhea | eng |
dc.subject | levonorgestrel | eng |
dc.subject | levonorgestrel-releasing intrauterine system | eng |
dc.subject | menopause | eng |
dc.subject.other | hormone-therapy | eng |
dc.subject.other | progestins | eng |
dc.title | Levonorgestrel-releasing intrauterine system and breast cancer risk: A systematic review and meta-analysis | eng |
dc.type | article | eng |
dc.rights.holder | Copyright WILEY | eng |
dc.identifier.doi | 10.1111/aogs.13817 | |
dc.identifier.pmid | 31990981 | |
dc.subject.wos | Obstetrics & Gynecology | eng |
dc.type.category | review | eng |
dc.type.version | publishedVersion | eng |
hcfmusp.author.external | CONZ, Livia:Univ Estadual Campinas, UNICAMP, Dept Obstet & Gynecol, Med Sch, Campinas, SP, Brazil; Univ Estadual Campinas, Div Gynecol & Breast Oncol, Womens Hosp CAISM, Campinas, SP, Brazil | |
hcfmusp.author.external | BAHAMONDES, Luis:Univ Estadual Campinas, UNICAMP, Dept Obstet & Gynecol, Med Sch, Campinas, SP, Brazil | |
hcfmusp.author.external | DORIA, Maira Teixeira:Univ Estadual Campinas, UNICAMP, Dept Obstet & Gynecol, Med Sch, Campinas, SP, Brazil; Univ Estadual Campinas, Div Gynecol & Breast Oncol, Womens Hosp CAISM, Campinas, SP, Brazil | |
hcfmusp.author.external | DERCHAIN, Sophie Francoise Mauricette:Univ Estadual Campinas, UNICAMP, Dept Obstet & Gynecol, Med Sch, Campinas, SP, Brazil; Univ Estadual Campinas, Div Gynecol & Breast Oncol, Womens Hosp CAISM, Campinas, SP, Brazil | |
hcfmusp.author.external | RIEIRA, Rachel:Univ Fed Sao Paulo UNIFESP, Ctr Hlth Tecnol, Hosp Sirio Libanes, Sao Paulo, Brazil | |
hcfmusp.author.external | SARIAN, Luis Otavio:Univ Estadual Campinas, UNICAMP, Dept Obstet & Gynecol, Med Sch, Campinas, SP, Brazil; Univ Estadual Campinas, Div Gynecol & Breast Oncol, Womens Hosp CAISM, Campinas, SP, Brazil | |
hcfmusp.description.beginpage | 970 | |
hcfmusp.description.endpage | 982 | |
hcfmusp.description.issue | 8 | |
hcfmusp.description.volume | 99 | |
hcfmusp.origem | WOS | |
hcfmusp.origem.id | WOS:000512801800001 | |
hcfmusp.origem.id | 2-s2.0-85079410044 | |
hcfmusp.publisher.city | HOBOKEN | eng |
hcfmusp.publisher.country | USA | eng |
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dc.description.index | MEDLINE | eng |
dc.identifier.eissn | 1600-0412 | |
hcfmusp.citation.scopus | 47 | - |
hcfmusp.scopus.lastupdate | 2024-03-29 | - |
Appears in Collections: | Artigos e Materiais de Revistas Científicas - HC/ICESP Artigos e Materiais de Revistas Científicas - ODS/03 |
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