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Title: Perinatal and childhood factors and risk of breast cancer subtypes in adulthood.
Authors: Lope, Virginia
García-Esquinas, Esther
Pérez-Gómez, Beatriz
Altzibar, Jone M
Gracia-Lavedan, Esther
Ederra, María
Molina de la Torre, Antonio José
LLorca, Francisco Javier
Tardón, Adonina
Moreno, Víctor
Bayo, Juan
Salas-Trejo, Dolores
Marcos-Gragera, Rafael
Pumarega, José
Dierssen-Sotos, Trinidad
Lera, Juan Pablo Barrio
de Miguel Medina, M A Concepción
Tusquets, Ignasi
Amiano, Pilar
Boldo, Elena
Kogevinas, Manolis
Aragonés, Nuria
Castaño-Vinyals, Gemma
Pollán, Marina
Keywords: Breast cancer subtypes;Case-control study;Childhood factors;Childhood height;Childhood weight;Early life factors;Hormone receptor;Maternal age;Perinatal factors;Spain
metadata.dc.subject.mesh: Adult
Aged, 80 and over
Body Height
Body Weight
Breast Neoplasms
Case-Control Studies
Maternal Age
Middle Aged
Risk Factors
Socioeconomic Factors
Young Adult
Issue Date: 21-Nov-2015
Abstract: Accumulated exposure to hormones and growth factors during early life may influence the future risk of breast cancer (BC). This study examines the influence of childhood-related, socio-demographic and anthropometric variables on BC risk, overall and by specific pathologic subtypes. This is a case-control study where 1539 histologically-confirmed BC cases (23-85 years) and 1621 population controls, frequency matched by age, were recruited in 10 Spanish provinces. Perinatal and childhood-related characteristics were directly surveyed by trained staff. The association with BC risk, globally and according to menopausal status and pathologic subtypes, was evaluated using logistic and multinomial regression models, adjusting for tumor specific risk factors. Birth characteristics were not related with BC risk. However, women with high socioeconomic level at birth presented a decreased BC risk (OR=0.45; 95% CI=0.29-0.70), while those whose mothers were aged over 39 years at their birth showed an almost significant excess risk of hormone receptor positive tumors (HR+) (OR=1.35; 95% CI=0.99-1.84). Women who were taller than their girl mates before puberty showed increased postmenopausal BC risk (OR=1.26; 95% CI=1.03-1.54) and increased HR+ BC risk (OR=1.26; 95% CI=1.04-1.52). Regarding prepubertal weight, while those women who were thinner than average showed higher postmenopausal BC risk (OR=1.46; 95% CI=1.20-1.78), associated with HR+ tumors (OR=1.34; 95% CI=1.12-1.61) and with triple negative tumors (OR=1.56; 95% CI=1.03-2.35), those who were heavier than average presented lower premenopausal BC risk (OR=0.64; 95% CI=0.46-0.90) and lower risk of epidermal growth factor receptor positive tumors (OR=0.61; 95% CI=0.40-0.93). These data reflect the importance of hormones and growth factors in the early stages of life, when the mammary gland is in development and therefore more vulnerable to proliferative stimuli.
metadata.dc.identifier.doi: 10.1016/j.canep.2015.11.004
Appears in Collections:Producción 2020

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