0247 Relationships between Changes in Sleep and Gestational Weight Gain Among Pregnant Women. (12th April 2019)

• Record Type: Journal Article
• Authors: Vander Wyst, Kiley B; Whisner, Corrie M; Reifsnider, Elizabeth; Buman, Matthew; Shaibi, Gabriel Q; Petrov, Megan E
• Is Part Of: Sleep. Volume 42(2019)Supplement 1
• Page Start: A101
• Page End: A102
• Publication Date: 2019-04-12
• Subjects: Sleep -- Physiological aspects -- Periodicals; Sleep disorders -- Periodicals; Sommeil -- Aspect physiologique -- Périodiques; Sommeil, Troubles du -- Périodiques; Sleep disorders; Sleep -- Physiological aspects; Sleep -- physiological aspects; Sleep Wake Disorders; Psychophysiology; Electronic journals; Periodicals; 616.8498
• DOI: 10.1093/sleep/zsz067.246
• Languages: English
• ISSNs: 0161-8105

Abstract

Abstract: Introduction: Few studies have examined the relationship of objective sleep with gestational weight gain (GWG). We examined associations among actigraphic sleep and GWG rate over the 2 nd trimester of pregnancy. We hypothesized that poor sleep early in the 2 nd trimester and deterioration in sleep across the 2 nd trimester would be associated with greater GWG rate. Methods: In a pilot study of 12 pregnant women ( M age=29.6±5.9y; M gestational age=15 weeks, range=13-17), wrist actigraphy data and GWG were collected three times across the 2 nd trimester. Weight was collected at baseline, week 7, and week 13. Rate of GWG (i.e., total weight gain divided by total weeks in the study) was calculated over the study period and between visits. Actigraph data were collected during weeks 1-3 (21 days), 6-7 (14 days), and 12-13 (14 days). Average nocturnal total sleep time (TST) and sleep efficiency (SE) were derived for each time period and changes in average TST and SE over the study period and between study visits were calculated. Correlations were computed. Results: Average GWG rates over the study period, weeks 1-7, and weeks 8-13 were 0.53±0.19, 0.58±.23, and 0.48±23 kg/week, respectively. Average TST and SE early in the 2 nd trimester (weeks 1-3) were 439.7±53.1 min and 83.9±4.3%, respectively. Average changes in TST and SE across the study period were 10.8±46.0 min, (range:-55.8-100.7) and -0.5±3.6% (range:-8.3-6.0), respectively. Greater GWG rate was significantly associated with reduced TST across the study period (r=-.76, p =.004). Greater GWG rate in the 1 st half of the 2 nd trimester was significantly related to decreases in TST in the 2 nd half of the 2 nd trimester (r=-.79, p=.006). There were no other significant relationships among the study variables. Conclusion: In a small sample of pregnant women, higher GWG rate early in the 2 nd trimester was significantly associated with decreases in objective TST across the 2 nd trimester. Poor sleep may be a sequela rather than a risk factor for excessive GWG. The impact of this relationship on maternal, labor, delivery, and child outcomes is uncertain. Support (If Any): N/A