Aliya Alimujiang1, Catherine Appleton2, Graham A Colditz1, Adetunji T Toriola3. 1. Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine and Siteman Cancer Center, Campus Box 8100, 660 South Euclid Ave, St Louis, MO, 63110, USA. 2. Division of Diagnostic Radiology, and Siteman Cancer Center, Department of Radiology, Washington University School of Medicine, St Louis, MO, 63144, USA. 3. Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine and Siteman Cancer Center, Campus Box 8100, 660 South Euclid Ave, St Louis, MO, 63110, USA. toriolaa@wudosis.wustl.edu.
Abstract
PURPOSE: We investigated the associations of adolescent adiposity, changes in adiposity during adulthood, and attained adiposity with volumetric mammographic density measures. METHODS: We recruited 383 premenopausal women who had a routine screening mammogram at the Breast Health Center, Washington University in St. Louis, MO from December 2015 to October 2016. Trained research personnel assessed current adiposity measures. Weight at ages 18 and 30 were self-reported. We evaluated mammographic density measures: volumetric percent density (VPD), dense volume (DV), and non-dense volume (NDV) using Volpara. Multivariable linear regression models were used to evaluate the associations of adiposity measures with volumetric mammographic density measures. RESULTS: All attained adiposity measures, BMI at age 18, age 30, and weight change were significantly inversely associated with VPD, and positively associated with DV and NDV. One unit increase in body fat % was associated with a 4.9% decrease in VPD and a 6.5% increase in NDV (p-values <0.001). For each kilogram increase in weight change from age 18 to attained, VPD decreased by 16.3%, 47.1%, and 58.8% for women who gained 5.1-15, 15.1-25 and >25 kg, respectively, compared to women who gained less than 5 kg during this time period (p-values <0.001). Irrespective of BMI at age 18, VPD significantly decreased and NDV increased among women who were currently obese. CONCLUSIONS: There is a need for mechanistic studies focusing on early adulthood to provide a better understanding of how adiposity in early life relates to mammographic density, and possibly breast cancer development in premenopausal women.
PURPOSE: We investigated the associations of adolescent adiposity, changes in adiposity during adulthood, and attained adiposity with volumetric mammographic density measures. METHODS: We recruited 383 premenopausal women who had a routine screening mammogram at the Breast Health Center, Washington University in St. Louis, MO from December 2015 to October 2016. Trained research personnel assessed current adiposity measures. Weight at ages 18 and 30 were self-reported. We evaluated mammographic density measures: volumetric percent density (VPD), dense volume (DV), and non-dense volume (NDV) using Volpara. Multivariable linear regression models were used to evaluate the associations of adiposity measures with volumetric mammographic density measures. RESULTS: All attained adiposity measures, BMI at age 18, age 30, and weight change were significantly inversely associated with VPD, and positively associated with DV and NDV. One unit increase in body fat % was associated with a 4.9% decrease in VPD and a 6.5% increase in NDV (p-values <0.001). For each kilogram increase in weight change from age 18 to attained, VPD decreased by 16.3%, 47.1%, and 58.8% for women who gained 5.1-15, 15.1-25 and >25 kg, respectively, compared to women who gained less than 5 kg during this time period (p-values <0.001). Irrespective of BMI at age 18, VPD significantly decreased and NDV increased among women who were currently obese. CONCLUSIONS: There is a need for mechanistic studies focusing on early adulthood to provide a better understanding of how adiposity in early life relates to mammographic density, and possibly breast cancer development in premenopausal women.
Entities:
Keywords:
Adiposity; BMI; Body fat; Breast cancer; Mammographic density; Premenopausal; Weight change
Authors: Yunan Han; Catherine S Berkey; Cheryl R Herman; Catherine M Appleton; Aliya Alimujiang; Graham A Colditz; Adetunji T Toriola Journal: Cancer Prev Res (Phila) Date: 2020-02-26
Authors: Minouk J Schoemaker; Hazel B Nichols; Lauren B Wright; Mark N Brook; Michael E Jones; Katie M O'Brien; Hans-Olov Adami; Laura Baglietto; Leslie Bernstein; Kimberly A Bertrand; Marie-Christine Boutron-Ruault; Yu Chen; Avonne E Connor; Laure Dossus; A Heather Eliassen; Graham G Giles; Inger T Gram; Susan E Hankinson; Rudolf Kaaks; Timothy J Key; Victoria A Kirsh; Cari M Kitahara; Susanna C Larsson; Martha Linet; Huiyan Ma; Roger L Milne; Kotaro Ozasa; Julie R Palmer; Elio Riboli; Thomas E Rohan; Carlotta Sacerdote; Atsuko Sadakane; Malin Sund; Rulla M Tamimi; Antonia Trichopoulou; Giske Ursin; Kala Visvanathan; Elisabete Weiderpass; Walter C Willett; Alicja Wolk; Anne Zeleniuch-Jacquotte; Dale P Sandler; Anthony J Swerdlow Journal: Int J Cancer Date: 2020-02-15 Impact factor: 7.316