ATLANTA -- February 8, 2016 -- Too much or too little sleep in
pregnancy is associated with gestational weight gain, which may help
explain the link between poor sleep and poor outcomes in pregnancy,
researchers said here on February 4 at The Pregnancy Meeting, the 2016
Annual Meeting of the Society for Maternal-Fetal Medicine (SMFM).
“We know that poor sleep in pregnancy has been linked to adverse pregnancy outcomes,” said Francesca Facco, MD, Magee-Women’s Research Institute at the University of Pittsburgh, Pittsburgh, Pennsylvania. “Our findings provide a potential mechanism for poor sleep in pregnancy and adverse outcomes.”
With previous studies linking poor sleep with weight gain and obesity in non-pregnant women, Dr. Facco and colleagues evaluated women enrolled in the Nulliparous Pregnancy Outcomes Study Monitoring Mothers-to-Be (nuMoM2b) study.
Women were recruited to wear an actigraph to record objective sleep activity for 7 consecutive days at 16 to 20 weeks of pregnancy.
Those with gestational diabetes and chronic hypertension were excluded.
In evaluating the actigraphy results and weight data available for 751 of the women, the researchers found the majority of women (74.8%) had sleep duration between 7 and <9 2.1="" 5.2="" and="" had="" hours="" night="" per="" while="">9 hours of sleep duration per night.
Groups with the smallest and largest weight gain were defined by Z scores of <-1 and="">+1.
In looking at gestational weight gain, calculated according to self-reported pre-pregnancy weight and weight recorded at 22 to 29 weeks and the last weight prior to delivery, the authors found large gestational weight gain (Z>+1) was less frequent with increases in sleep duration, while women with the shortest sleep duration (<6 and="" hours="" longest="">9 hours) had the highest rates of small gestational weight gain (Z<-1 p=""> The differences were most significant for weight gain at visit 2 (22 weeks; P < .0001) and visit 3 (P = .04), and they were significant to the degree for the last week prior to delivery (P = .05).
“Our data suggests that both short and long sleep duration in pregnancy are associated with gestational weight gain,” the authors wrote in their presentation. “Poor sleep in pregnancy has been linked to adverse pregnancy outcomes, and our findings provide one potential mechanism for this association.”
[Presentation title: Short and Long Sleep Durations in Pregnancy Are Associated With Extremes of Gestational Weight Gain. Abstract 33]
“We know that poor sleep in pregnancy has been linked to adverse pregnancy outcomes,” said Francesca Facco, MD, Magee-Women’s Research Institute at the University of Pittsburgh, Pittsburgh, Pennsylvania. “Our findings provide a potential mechanism for poor sleep in pregnancy and adverse outcomes.”
With previous studies linking poor sleep with weight gain and obesity in non-pregnant women, Dr. Facco and colleagues evaluated women enrolled in the Nulliparous Pregnancy Outcomes Study Monitoring Mothers-to-Be (nuMoM2b) study.
Women were recruited to wear an actigraph to record objective sleep activity for 7 consecutive days at 16 to 20 weeks of pregnancy.
Those with gestational diabetes and chronic hypertension were excluded.
In evaluating the actigraphy results and weight data available for 751 of the women, the researchers found the majority of women (74.8%) had sleep duration between 7 and <9 2.1="" 5.2="" and="" had="" hours="" night="" per="" while="">9 hours of sleep duration per night.
Groups with the smallest and largest weight gain were defined by Z scores of <-1 and="">+1.
In looking at gestational weight gain, calculated according to self-reported pre-pregnancy weight and weight recorded at 22 to 29 weeks and the last weight prior to delivery, the authors found large gestational weight gain (Z>+1) was less frequent with increases in sleep duration, while women with the shortest sleep duration (<6 and="" hours="" longest="">9 hours) had the highest rates of small gestational weight gain (Z<-1 p=""> The differences were most significant for weight gain at visit 2 (22 weeks; P < .0001) and visit 3 (P = .04), and they were significant to the degree for the last week prior to delivery (P = .05).
“Our data suggests that both short and long sleep duration in pregnancy are associated with gestational weight gain,” the authors wrote in their presentation. “Poor sleep in pregnancy has been linked to adverse pregnancy outcomes, and our findings provide one potential mechanism for this association.”
[Presentation title: Short and Long Sleep Durations in Pregnancy Are Associated With Extremes of Gestational Weight Gain. Abstract 33]
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