Sleep and weight loss in low-income overweight or obese postpartum women

Mei-Wei Chang,Alai Tan,Duane T Wegener,Jonathan Schaffir

doi:10.1186/s40608-019-0236-6

Abstract

BackgroundWe conducted secondary data analyses to examine the associations between sleep duration, sleep quality, sleep disturbance and ≥ 5% of weight loss in low-income overweight or obese postpartum women enrolled in a community-based lifestyle behavior intervention study aimed at prevention of weight gain.MethodsParticipants were recruited from the Special Supplemental Nutrition Program for Women, Infants, and Children in Michigan. The Pittsburgh Sleep Quality Index was used to assess sleep duration, sleep quality, and sleep disturbance. All participants were assessed and weighed at baseline (T1, 569 participants), 4-month (T2, 367 participants), and 7-month from T1 (T3, 332 participants). Descriptive statistics and mixed-effects regression analysis were performed.ResultsParticipants reported longer sleep duration (p = 0.048), better sleep quality (p = 0.003) and less sleep disturbance (p < 0.001) over time. There were no significant mean body weight changes at T2 and T3. However, a significantly higher proportion of women lost ≥5% of body weight at T3 (23.1%) than T2 (12.5%, p = 0.001). Sleep duration, quality, and disturbance were not significantly associated with ≥5% of weight loss.ConclusionImprovements in sleep duration, sleep quality and sleep disturbance over time were not associated with ≥5% of weight loss in low-income overweight or obese postpartum women.Trial registrationClinical Trials NCT01839708; retrospectively registered February 28, 2013.

Highlights

We conducted secondary data analyses to examine the associations between sleep duration, sleep quality, sleep disturbance and ≥ 5% of weight loss in low-income overweight or obese postpartum women enrolled in a community-based lifestyle behavior intervention study aimed at prevention of weight gain
Derangement of sleep is one such risk factor suggested by prior studies, which may be further characterized by problems with sleep duration, sleep quality, or sleep disturbance
The objective of this secondary data analysis was to examine the associations between sleep duration, sleep quality, sleep disturbance and ≥ 5% of weight loss in low-income overweight or obese postpartum women enrolled in a community-based lifestyle behavior intervention study aimed at prevention of weight gain

Summary

Methods

Participants were recruited from the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) in Michigan between September 2012 and January 2015. We did not detect any significant differences between the intervention and comparison groups in mean body weight at T2 or T3 [27]. Prior to conducting this secondary analysis study, we (2019) 6:12. Investigated whether there were significant differences in sleep duration, sleep quality, and sleep disturbance between the intervention and comparison groups. As the ≥5% weight loss from baseline was the only weight outcome that had significant change across time, we compared women with < 5% weight loss to those with ≥5% weight loss from baseline in sleep duration, sleep quality, and sleep disturbance. All tests were two-sided at a significance level of 0.05

Results

Conclusion

Background

Discussion

Conclusions