Are babies conceived during Ramadan born smaller and sooner than babies conceived at other times of the year? A Born in Bradford Cohort study

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@article{d222dde160fd4c049150fcb17988ecd6,
title = "Are babies conceived during Ramadan born smaller and sooner than babies conceived at other times of the year? A Born in Bradford Cohort study",
abstract = "Background: It is not known whether infants exposed to intermittent maternal fasting at conception are born smaller or have a higher risk of premature birth than those who are not. Doctors are therefore unsure about what advice to give women about the safety of Ramadan fasting. This cohort study aimed to investigate these questions in Muslim mother-infant pairs to inform prenatal care.Methods: Routinely collected data accessed from maternity records was the source of the data. Mothers were considered exposed if they were Muslim and Ramadan overlapped with their infant conception date, estimated to be 14 days after the last menstrual period. Infants were included as exposed if their estimated conception date was in the first 21 days of Ramadan or seven days prior to Ramadan. Results: After adjusting for gestational age, maternal age, infant gender, maternal body mass index at booking, smoking status, gestational diabetes, parity and year of birth there was no significant difference in birth weight between infants born to Muslim mothers who were conceived during Ramadan (n=479) and those who were not (n=4,677) (adjusted mean difference=24.3 grams, 95% confidence interval=-16.4-64.9). There was no difference in rates of premature births in exposed and unexposed women (5.2% vs 4.9%; odds ratio=1.08, 0.71-1.65). Conclusions: Healthy Muslim women considering becoming pregnant prior to, or during Ramadan, can be advised that fasting does not seem to have a detrimental effect on the size (weight) of their baby and it appears not to increase the likelihood of giving birth prematurely.",
keywords = "Ramadan, premature birth, birth weight, born in Bradford, Fasting",
author = "Amanda Daley and Miranda Pallan and Kar Cheng and Susan Clifford and Catherine Jolly and Peymane Adab and Andrea Roalfe",
year = "2017",
month = jul,
day = "1",
doi = "10.1136/jech-2016-208800",
language = "English",
volume = "71",
pages = "722--728",
journal = "Journal of Epidemiology and Community Health",
issn = "0143-005X",
publisher = "BMJ Publishing Group",

}

RIS

TY - JOUR

T1 - Are babies conceived during Ramadan born smaller and sooner than babies conceived at other times of the year? A Born in Bradford Cohort study

AU - Daley, Amanda

AU - Pallan, Miranda

AU - Cheng, Kar

AU - Clifford, Susan

AU - Jolly, Catherine

AU - Adab, Peymane

AU - Roalfe, Andrea

PY - 2017/7/1

Y1 - 2017/7/1

N2 - Background: It is not known whether infants exposed to intermittent maternal fasting at conception are born smaller or have a higher risk of premature birth than those who are not. Doctors are therefore unsure about what advice to give women about the safety of Ramadan fasting. This cohort study aimed to investigate these questions in Muslim mother-infant pairs to inform prenatal care.Methods: Routinely collected data accessed from maternity records was the source of the data. Mothers were considered exposed if they were Muslim and Ramadan overlapped with their infant conception date, estimated to be 14 days after the last menstrual period. Infants were included as exposed if their estimated conception date was in the first 21 days of Ramadan or seven days prior to Ramadan. Results: After adjusting for gestational age, maternal age, infant gender, maternal body mass index at booking, smoking status, gestational diabetes, parity and year of birth there was no significant difference in birth weight between infants born to Muslim mothers who were conceived during Ramadan (n=479) and those who were not (n=4,677) (adjusted mean difference=24.3 grams, 95% confidence interval=-16.4-64.9). There was no difference in rates of premature births in exposed and unexposed women (5.2% vs 4.9%; odds ratio=1.08, 0.71-1.65). Conclusions: Healthy Muslim women considering becoming pregnant prior to, or during Ramadan, can be advised that fasting does not seem to have a detrimental effect on the size (weight) of their baby and it appears not to increase the likelihood of giving birth prematurely.

AB - Background: It is not known whether infants exposed to intermittent maternal fasting at conception are born smaller or have a higher risk of premature birth than those who are not. Doctors are therefore unsure about what advice to give women about the safety of Ramadan fasting. This cohort study aimed to investigate these questions in Muslim mother-infant pairs to inform prenatal care.Methods: Routinely collected data accessed from maternity records was the source of the data. Mothers were considered exposed if they were Muslim and Ramadan overlapped with their infant conception date, estimated to be 14 days after the last menstrual period. Infants were included as exposed if their estimated conception date was in the first 21 days of Ramadan or seven days prior to Ramadan. Results: After adjusting for gestational age, maternal age, infant gender, maternal body mass index at booking, smoking status, gestational diabetes, parity and year of birth there was no significant difference in birth weight between infants born to Muslim mothers who were conceived during Ramadan (n=479) and those who were not (n=4,677) (adjusted mean difference=24.3 grams, 95% confidence interval=-16.4-64.9). There was no difference in rates of premature births in exposed and unexposed women (5.2% vs 4.9%; odds ratio=1.08, 0.71-1.65). Conclusions: Healthy Muslim women considering becoming pregnant prior to, or during Ramadan, can be advised that fasting does not seem to have a detrimental effect on the size (weight) of their baby and it appears not to increase the likelihood of giving birth prematurely.

KW - Ramadan

KW - premature birth

KW - birth weight

KW - born in Bradford

KW - Fasting

UR - https://link.springer.com/journal/12529/23/1/suppl/page/1

U2 - 10.1136/jech-2016-208800

DO - 10.1136/jech-2016-208800

M3 - Article

VL - 71

SP - 722

EP - 728

JO - Journal of Epidemiology and Community Health

JF - Journal of Epidemiology and Community Health

SN - 0143-005X

ER -