Association of fewer hours of sleep at 6 months postpartum with substantial weight retention at 1 year postpartum.

Division of Research, Kaiser Permanente Research Foundation, Oakland, CA 94612, USA.
American journal of epidemiology (Impact Factor: 4.98). 01/2008; 167(2):178-87. DOI: 10.1093/aje/kwm298
Source: PubMed

ABSTRACT Shorter sleep duration is linked to obesity, coronary artery disease, and diabetes. Whether sleep deprivation during the postpartum period affects maternal postpartum weight retention remains unknown. This study examined the association of sleep at 6 months postpartum with substantial postpartum weight retention (SPPWR), defined as 5 kg or more above pregravid weight at 1 year postpartum. The authors selected 940 participants in Project Viva who enrolled during early pregnancy from 1999 to 2002. Logistic regression models estimated odds ratios of SPPWR for sleep categories, controlling for sociodemographic, prenatal, and behavioral attributes. Of the 940 women, 124 (13%) developed SPPWR. Sleep distributions were as follows: 114 (12%) women slept < or =5 hours/day, 280 (30%) slept 6 hours/day, 321 (34%) slept 7 hours/day, and 225 (24%) slept > or =8 hours/day. Adjusted odds ratios of SPPWR were 3.13 (95% confidence interval (CI): 1.42, 6.94) for < or =5 hours/day, 0.99 (95% CI: 0.50, 1.97) for 6 hours/day, and 0.94 (95% CI: 0.50, 1.78) for > or =8 hours/day versus 7 hours/day (p = 0.012). The adjusted odds ratio for SPPWR of 2.05 (95% CI: 1.11, 3.78) was twofold greater (p = 0.02) for a decrease in versus no change in sleep at 1 year postpartum. Sleeping < or =5 hours/day at 6 months postpartum was strongly associated with retaining > or =5 kg at 1 year postpartum. Interventions to prevent postpartum obesity should consider strategies to attain optimal maternal sleep duration.

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    ABSTRACT: Remedying childhood obesity cannot take place without first identifying relevant issues commonly influencing gatekeepers of food for children as well as the role modeling for encouraging or discouraging daily activities. Children cannot drive to the store, form grocery lists or complete menu management tasks without adult assistance. Excessive weight gain during pregnancy leads to weight retention postpartum and often increases with each pregnancy. Maternal and postpartum obesity is associated with increased risk of developing gestational diabetes, metabolic syndrome, prenatal morbidity and increased risk of obesity in the offspring through adolescence which without intervention, leads to adulthood obesity. According to the Center for Disease Control (CDC) data, weight gain in excess of the Institute of Medicine (IOM) guidelines is common. CDC data has shown, between 1990-2005, gaining > 40# in all Body Mass Index (BMI) categories has increased between 15-20%. Considering insurance coverage for weight loss management is not promoted by all health care practitioners for all postpartum women and only a percentage of postpartum women choose to breastfeed which can enhance weight loss, strategies for recommending dietitian services to clinics, hospitals and communities for helping moms or gatekeepers lose weight will be shared.
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    ABSTRACT: Objective: To review the impact of sleep, stress, and/or depression on postpartum weight retention. Methods: We searched three electronic databases, PubMed, ISI Web of Science, and Psyclnfo. Studies were included if they were published between January 1990 and September 2013 in English, measured sleep, stress, and/or depression in the postpartum period, and assessed the association of these factors with postpartum weight retention. Two reviewers reviewed included articles and rated study quality using a modified version of the Downs and Black scale. Results: Thirteen studies met our pre-defined eligibility criteria, reporting on 9 study samples. Two were cross-sectional studies and eleven were longitudinal studies. The study sample size ranged from 74 to 37,127. All four studies examining short sleep duration and postpartum weight retention reported a positive association. The four studies examining postpartum stress and weight retention reported non-significant associations only. Of 7 studies examining postpartum depression and weight retention, 3 reported non-significant associations, and 4 reported positive associations. Conclusion: Research investigating the impact of postpartum sleep, stress, depression on weight retention is limited. Future longitudinal studies are needed.
    Journal of Psychosomatic Research 10/2014; 77(5). DOI:10.1016/j.jpsychores.2014.09.016 · 2.84 Impact Factor
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    ABSTRACT: Background: Inconsistent findings in previous studies of the association between sleep duration and changes in body mass index (BMI) may be attributed to misclassification of sleep duration fluctuations over time and unmeasured confounders such as genetic factors. The aim of the present study was to overcome these failings by using repeated measurements and panel data analysis to examine the sleep-BMI association.Methods: Panel data were derived by secondary use of the data from mandatory health checkups at a Japanese gas company. Male non-shift workers aged 19-39 years in 2007 were annually followed until 2010 (n = 1687, 6748 records). BMI was objectively measured, and sleep duration was self-reported.Results: Compared with 7-hour sleepers, panel analysis with the population-averaged model showed a significant increase in BMI among 5-hour (0.11 kg/m(2), P = 0.001), 6-hour (0.07 kg/m(2), P = 0.038), and ≥8-hour (0.19 kg/m(2), P = 0.009) sleepers. On the other hand, after adjustment for unobserved time-invariant confounders using the fixed-effects model, the magnitude of the association was considerably attenuated and no longer significant (5-hour, 0.07 kg/m(2), P = 0.168; 6-hour, 0.02 kg/m(2), P = 0.631; ≥8-hour sleepers, 0.06 kg/m(2), P = 0.460).Conclusions: The longitudinal association between sleep duration and changes in BMI may be upwardly biased by unobserved time-invariant confounders rather than misclassified sleep duration. The net effect of sleep duration on weight gain may therefore be less than previously believed.
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