Breastfeeding in the First Days of Life Is Associated With Lower Blood Pressure at 3 Years of Age

Background Breastfeeding in infancy is associated with lower cardiovascular disease risk in adulthood; however, the amount of breastfeeding required to achieve this benefit is unknown. Methods and Results In the CHILD (Canadian Healthy Infant Longitudinal Development) Cohort Study, we analyzed 2382...

Full description

Bibliographic Details
Main Authors: Kozeta Miliku, Theo J. Moraes, Allan B. Becker, Piushkumar J. Mandhane, Malcolm R. Sears, Stuart E. Turvey, Padmaja Subbarao, Meghan B. Azad
Format: Article
Language:English
Published: Wiley 2021-08-01
Series:Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Subjects:
Online Access:https://www.ahajournals.org/doi/10.1161/JAHA.120.019067
_version_ 1811245160340652032
author Kozeta Miliku
Theo J. Moraes
Allan B. Becker
Piushkumar J. Mandhane
Malcolm R. Sears
Stuart E. Turvey
Padmaja Subbarao
Meghan B. Azad
author_facet Kozeta Miliku
Theo J. Moraes
Allan B. Becker
Piushkumar J. Mandhane
Malcolm R. Sears
Stuart E. Turvey
Padmaja Subbarao
Meghan B. Azad
author_sort Kozeta Miliku
collection DOAJ
description Background Breastfeeding in infancy is associated with lower cardiovascular disease risk in adulthood; however, the amount of breastfeeding required to achieve this benefit is unknown. Methods and Results In the CHILD (Canadian Healthy Infant Longitudinal Development) Cohort Study, we analyzed 2382 children with complete data on early life feeding and blood pressure. Infant feeding was documented from hospital records in the first few days of life and reported by mothers throughout infancy. Blood pressure was measured at 3 years of age. Analyses controlled for birth weight, gestational age, socioeconomic status, maternal body mass index, and other potential confounders. We found that nearly all children (2333/2382; 97.9%) were ever breastfed, of whom 98 (4.2%) only briefly received breast milk during their birth hospitalization (“early limited breastfeeding”). At 3 years of age, blood pressure was higher in children who were never breastfed (mean systolic/diastolic 103/60 mm Hg) compared with those who were ever breastfed (99/58 mm Hg), including those who received only early limited breastfeeding (99/57 mm Hg). These differences in systolic blood pressure persisted in adjusted models (ever breastfed: −3.47 mm Hg, 95% CI, −6.14 to −0.80; early limited breastfeeding: −4.24 mm Hg, 95% CI, −7.45 to −1.04). Among breastfed children, there was no significant dose‐response association according to the duration or exclusivity of breastfeeding. Associations were not mediated by child body mass index. Conclusions Although the benefits of sustained and exclusive breastfeeding are indisputable, this study indicates any breastfeeding, regardless of duration or exclusivity, is associated with lower blood pressure at 3 years of age. Further research examining the bioactive components of early breast milk, underlying mechanisms, and long‐term associations is warranted.
first_indexed 2024-04-12T14:37:08Z
format Article
id doaj.art-525d73042df24df7b3b0e46bc1d13775
institution Directory Open Access Journal
issn 2047-9980
language English
last_indexed 2024-04-12T14:37:08Z
publishDate 2021-08-01
publisher Wiley
record_format Article
series Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
spelling doaj.art-525d73042df24df7b3b0e46bc1d137752022-12-22T03:29:04ZengWileyJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease2047-99802021-08-01101510.1161/JAHA.120.019067Breastfeeding in the First Days of Life Is Associated With Lower Blood Pressure at 3 Years of AgeKozeta Miliku0Theo J. Moraes1Allan B. Becker2Piushkumar J. Mandhane3Malcolm R. Sears4Stuart E. Turvey5Padmaja Subbarao6Meghan B. Azad7Department of Medicine McMaster University Hamilton CanadaDepartments of Pediatrics Hospital for Sick Children University of Toronto Toronto CanadaDepartment of Pediatrics and Child Health University of Manitoba Winnipeg CanadaDepartment of Pediatrics University of Alberta Edmonton CanadaDepartment of Medicine McMaster University Hamilton CanadaDepartment of Pediatrics University of British Columbia Vancouver CanadaDepartments of Pediatrics Hospital for Sick Children University of Toronto Toronto CanadaDepartment of Pediatrics and Child Health University of Manitoba Winnipeg CanadaBackground Breastfeeding in infancy is associated with lower cardiovascular disease risk in adulthood; however, the amount of breastfeeding required to achieve this benefit is unknown. Methods and Results In the CHILD (Canadian Healthy Infant Longitudinal Development) Cohort Study, we analyzed 2382 children with complete data on early life feeding and blood pressure. Infant feeding was documented from hospital records in the first few days of life and reported by mothers throughout infancy. Blood pressure was measured at 3 years of age. Analyses controlled for birth weight, gestational age, socioeconomic status, maternal body mass index, and other potential confounders. We found that nearly all children (2333/2382; 97.9%) were ever breastfed, of whom 98 (4.2%) only briefly received breast milk during their birth hospitalization (“early limited breastfeeding”). At 3 years of age, blood pressure was higher in children who were never breastfed (mean systolic/diastolic 103/60 mm Hg) compared with those who were ever breastfed (99/58 mm Hg), including those who received only early limited breastfeeding (99/57 mm Hg). These differences in systolic blood pressure persisted in adjusted models (ever breastfed: −3.47 mm Hg, 95% CI, −6.14 to −0.80; early limited breastfeeding: −4.24 mm Hg, 95% CI, −7.45 to −1.04). Among breastfed children, there was no significant dose‐response association according to the duration or exclusivity of breastfeeding. Associations were not mediated by child body mass index. Conclusions Although the benefits of sustained and exclusive breastfeeding are indisputable, this study indicates any breastfeeding, regardless of duration or exclusivity, is associated with lower blood pressure at 3 years of age. Further research examining the bioactive components of early breast milk, underlying mechanisms, and long‐term associations is warranted.https://www.ahajournals.org/doi/10.1161/JAHA.120.019067blood pressurebreastfeedingcolostrumepidemiologyhypertensionpediatrics
spellingShingle Kozeta Miliku
Theo J. Moraes
Allan B. Becker
Piushkumar J. Mandhane
Malcolm R. Sears
Stuart E. Turvey
Padmaja Subbarao
Meghan B. Azad
Breastfeeding in the First Days of Life Is Associated With Lower Blood Pressure at 3 Years of Age
Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
blood pressure
breastfeeding
colostrum
epidemiology
hypertension
pediatrics
title Breastfeeding in the First Days of Life Is Associated With Lower Blood Pressure at 3 Years of Age
title_full Breastfeeding in the First Days of Life Is Associated With Lower Blood Pressure at 3 Years of Age
title_fullStr Breastfeeding in the First Days of Life Is Associated With Lower Blood Pressure at 3 Years of Age
title_full_unstemmed Breastfeeding in the First Days of Life Is Associated With Lower Blood Pressure at 3 Years of Age
title_short Breastfeeding in the First Days of Life Is Associated With Lower Blood Pressure at 3 Years of Age
title_sort breastfeeding in the first days of life is associated with lower blood pressure at 3 years of age
topic blood pressure
breastfeeding
colostrum
epidemiology
hypertension
pediatrics
url https://www.ahajournals.org/doi/10.1161/JAHA.120.019067
work_keys_str_mv AT kozetamiliku breastfeedinginthefirstdaysoflifeisassociatedwithlowerbloodpressureat3yearsofage
AT theojmoraes breastfeedinginthefirstdaysoflifeisassociatedwithlowerbloodpressureat3yearsofage
AT allanbbecker breastfeedinginthefirstdaysoflifeisassociatedwithlowerbloodpressureat3yearsofage
AT piushkumarjmandhane breastfeedinginthefirstdaysoflifeisassociatedwithlowerbloodpressureat3yearsofage
AT malcolmrsears breastfeedinginthefirstdaysoflifeisassociatedwithlowerbloodpressureat3yearsofage
AT stuarteturvey breastfeedinginthefirstdaysoflifeisassociatedwithlowerbloodpressureat3yearsofage
AT padmajasubbarao breastfeedinginthefirstdaysoflifeisassociatedwithlowerbloodpressureat3yearsofage
AT meghanbazad breastfeedinginthefirstdaysoflifeisassociatedwithlowerbloodpressureat3yearsofage