Mood and objective and subjective measures of sleep during late pregnancy and the postpartum period

Maternal Sleep Quality and Executive Function are Associated with Perceptions of Infant Sleep

OBJECTIVES

This study examined the associations among maternal sleep quality, executive function, and perceptions of infant sleep in a sample of families recruited from human service and public health systems.

METHODS

Seventy-three mothers of infants 5-14 months old were included in the study. Mothers racially and ethnically identified as American Indian/Alaskan Native (4.1%), Asian (4.1%), Black/African American (12.3%), Latina (23.3%), more than one race (12.3%), Pacific Islander (1.4%), and White (42.5%). Mothers completed questionnaires assessing their own sleep (Pittsburgh Sleep Quality Index) and executive function (Behavior Rating Inventory of Executive Function) as well as their perceptions about their infant's sleep (Brief Infant Sleep Questionnaire).

RESULTS

Results of the path analysis indicated significant direct effects among maternal sleep quality, executive function, and perceptions of infant sleep. Significant indirect effects were found such that poor maternal sleep quality was linked to poorer perceptions of infant sleep through maternal executive dysfunction, adjusting for infant sleep patterns, infant age, and maternal race and ethnicity.

CONCLUSIONS

The current study highlights the potential role of maternal behavioral and cognitive factors in shaping mothers' perceptions about infant sleep. These findings support the need for health professionals and researchers to consider maternal sleep quality and executive function when addressing mothers' concerns about infant sleep.

Sleep, circadian activity patterns and postpartum depression: A systematic review and meta-analysis of actigraphy studies

Transition to motherhood is a period full of challenges and demands. In this review, we focused on the associations of sleep and circadian activity patterns during and after pregnancy with postpartum mental health factors. A systematic review and meta-analysis were conducted (PROSPERO reference 316,505). A search for articles was performed using PsycARTICLES, PsycINFO, PubMed, MEDLINE, Scopus, Cochrane, DARE, hand search, and citation tracking. The search was meant to identify peer-reviewed, experimental and observational studies reporting on women over 18 years old that assessed sleep and circadian activity patterns during pregnancy or postpartum using actigraphy, and investigated postpartum mental health factors. Nineteen relevant publications were selected. Postpartum total sleep at night was the indicator that was most closely related to the psychological functioning of women after childbirth. The results of the systematic review indicated that postpartum total sleep at night was related to postpartum fatigue, and the results of the meta-analysis suggested that total sleep at night was most strongly linked with postpartum depression. More studies are needed to estimate the associations of sleep-wake rhythm during pregnancy and in the postpartum period with postpartum mental health factors.

The role of sleep protection in preventing and treating postpartum depression

Postpartum sleep disruption is a risk factor for postpartum depression (PPD) as well as a potential treatment target. In the first 6 months after delivery, when the risk of PPD is greatest, fragmented maternal sleep is most often related to necessary infant night feedings. Clinicians' conversations about planning for and navigating postpartum sleep should include questions about patient expectations, cultural traditions, and available support. For women at high risk of PPD, or with moderate to severe PPD or other symptoms of mental illness, protecting one 4-5 hour period of consolidated nighttime sleep may be necessary and effective. This can be achieved by having another adult step in for 1-2 infant night feedings or by employing other strategies. OBs can encourage high-risk patients to develop a postpartum plan for sleep protection by initiating this conversation during pregnancy.

Dynamic Associations Among Sleep, Emotion Dysregulation, and Desire to Live in a Perinatal Sample

OBJECTIVE

The present study prospectively examined dynamic associations among sleep, emotion dysregulation, and desire to live during the perinatal transition, as it was theorized that these factors may contribute to the emergence of postpartum suicide risk.

METHOD

Ninety-four women ( Mage = 29.2 years; 23.4% Latina) wore wrist actigraphs and completed twice daily surveys for 7 days during the third trimester of pregnancy, 6 weeks postpartum, and 4 months postpartum. Multilevel, change-as-outcome models were built to examine changes in attractor dynamics among sleep, emotion dysregulation, and desire to live, as well as if sleep-emotion dysregulation dynamics differed based on participants' desires to live.

RESULTS

From pregnancy to 6 weeks postpartum, emotion dysregulation ( B = -0.09, p = .032) and desire to live ( B = -0.16, p < .001) exhibited more stable temporal patterns around higher emotion dysregulation and lower desire to live. Compared to women who reported consistently high desires to live, those who experienced fluctuations in their desires to live exhibited lower, more stable sleep efficiency during pregnancy ( B = -0.90, p < .001). At 4 months postpartum, those with fluctuating desires to live exhibited a coupling dynamic whereby low sleep efficiency predicted increases in emotion dysregulation ( B = -0.16, p = .020).

CONCLUSIONS

This study was the first to examine nonlinear dynamics among risk factors for postpartum suicide, which may be evident as early as pregnancy and 6 weeks postpartum. Sleep health, in particular, warrants further exploration as a key susceptibility factor in the emergence of postpartum suicide risk.

PREREGISTRATION

Open Science Framework ( https://osf.io/qxb75/?view_only=799ffe5c048842dfb89d3ddfebaa420d ).

Maternal Sleeping Problems Before and After Childbirth - A Systematic Review

The perinatal and postpartum period is of great significance for women due to physiological changes, shifts in circadian rhythms, social setting, and psychological well-being, all of which affect the quality and quantity of their sleep. A mixed-studies systematic review was undertaken to enhance our understanding of sleep disturbances and mood disorders in women in late pregnancy and the postpartum period, their connection with breastfeeding, and the assessment of interventions for sleep disturbance. Three electronic databases (PUBMED, EMBASE and Google Scholar) were searched for qualitative, observational, and mixed-method studies from the year 2016 to June 2023. Twenty-nine articles were included in the analysis. The results were synthesized into four overarching themes: (і) the sleep quality of women in the perinatal period; (ii) the relationship between sleep and breastfeeding; (iii) the relationship between sleep quality and emotional disturbance in the perinatal period; (iv) sleep interventions in the researched group. The subjective nature of the perception of sleep disturbances, along with the absence of an objective measurement tool is clearly an inconvenience. It is advisable to include the assessment of maternal sleep hygiene and family sleep patterns during postpartum healthcare provider appointments to develop strategies not only for women's sleep quality but also for their mental well-being.

Poor Sleep Quality Increases Gestational Weight Gain Rate in Pregnant People: Findings from the MADRES Study

Background

Poor sleep quality is associated with weight gain in non-pregnant populations, but evidence in pregnant people is lacking. Our study examined the association between early-to-mid pregnancy sleep quality and weekly gestational weight gain (GWG) rate during mid-to-late pregnancy by pre-pregnancy body mass index (BMI).

Method

Participants were 316 pregnant participants from the Maternal and Developmental Risks from Environmental and Social Stressors (MADRES) study. During early-to-mid pregnancy, participants reported their sleep quality which was used to construct four categories: very poor, poor, good, and very good. Linear growth curve models examined the association between early-to-mid pregnancy sleep quality and weekly rate of GWG (kg/week) during mid-to-late pregnancy (> 20 weeks gestation), with a three-way cross-level interaction between gestational age, sleep quality, and pre-pregnancy BMI category. Models adjusted for ethnicity by birthplace, hypertensive disorders, perceived stress score, and physical activity level.

Results

Overall, poorer early-to-mid pregnancy sleep quality was associated with increased weekly weight gain during mid-to-late pregnancy. For example, amongst normal weight participants, mid-to-late pregnancy weight gain was, on average, 0.39 kg (95% CI: 0.29, 0.48) per week for those with very good sleep quality, 0.53 kg (95% CI: 0.44, 0.61) per week for those with poor sleep quality, and 0.54 kg (95% CI: 0.46, 0.62) per week for those with very poor sleep quality during early-to-mid pregnancy. This difference in GWG rate was statistically significantly comparing very good to poor sleep (0.14 kg/week, 95% CI: 0.01, 0.26) and very good to very poor sleep (0.15kg/week, 85% CI: 0.02, 0.27). This association between sleep quality and GWG rate did not statistically differ by pre-pregnancy BMI.

Conclusion

Our study found very poor early-to-mid pregnancy sleep quality was associated with higher mid-to-late pregnancy GWG rate. Incorporating pregnancy-specific sleep recommendations into routine obstetric care may be a critical next step in promoting healthy GWG.

Depression in the next generation is related with maternal behaviors: A cross-comparison by alternating rat's mother care

This study investigated the potential impacts of depressive rats' maternal behavior as an early life stress on the outcome of offspring as an adulthood. Offspring from the same mother were divided into two groups, half of them were fostered or remained by a depressive mother, and the other half remained or fostered by a control mother, respectively. The results showed that offspring fostered by depressive mothers presented significant depressive behaviors. Meanwhile, depressive mothers engaged in more grooming during the light cycle, but less off-the-pup behavior during the dark phase. In conclusion, offspring exposed to a postnatal depressive maternal environment developed a depressive-like behavior. Contrarily, postpartum maternal behaviors play an essential role, which might determine the outcome of the next generation. Furthermore, the appropriate timing of postpartum maternal caring sequences, which might eliminate prenatal stressful influences, was recognized and might be a promising approach for reducing children's predisposition to mental disorders in their life time.

Sleep of mothers, fathers, and infants: a longitudinal study from pregnancy through 12 months

STUDY OBJECTIVES

This study assessed and compared mothers' and fathers' sleep trajectories from pregnancy and throughout the first year of the infant's life. We also examined associations between maternal, paternal, and infant sleep.

METHODS

Two hundred and thirty-two couples were recruited for the study during pregnancy. Data were collected during pregnancy and at 4, 8, and 12 months postpartum. Maternal, paternal, and infant sleep were monitored at home for seven nights, using actigraphy, sleep diaries, and the Insomnia Severity Index (ISI).

RESULTS

Mothers showed more impaired sleep quality than fathers, at all assessments, whereas fathers had shorter sleep duration. Based on the ISI, about 70% of mothers and 50% of fathers showed at least subclinical insomnia at the different assessments. Trajectory analyses (controlling for feeding method and sleeping arrangements) demonstrated a significant deterioration in diary-based and actigraphy sleep quality for both parents, from pregnancy to 4 months. Both parents and infants had an increase in sleep quality from 4 to 12 months, though some parental sleep variables showed a quadratic pattern with a decrease in sleep quality at 8 months. Statistically significant triadic associations at the different assessments were found between mothers', fathers', and infants' sleep. Maternal and infant sleep measures were more strongly correlated than paternal and infant sleep.

CONCLUSIONS

The findings highlight the importance of considering the family context of sleep, by demonstrating similarities and differences in the changes that sleep undergoes in new mothers and fathers and by showing how sleep is interrelated between all family members.

Infant feeding type and maternal sleep during the postpartum period: a systematic review and meta-analysis

The aim of this meta-analysis was to examine the associations among infant feeding types, sleeping habits, and maternal sleep postpartum. Databases including Cumulative Index of Nursing and Allied-Health Literature (CINAHL), PubMed, and Google Scholar were searched in addition to reference lists from selected articles and other key references. A critical review of relevant articles from the data sources was conducted with attention to the infant feeding types and maternal night-time sleep. The methodological quality was assessed systematically. The pooled mean difference was calculated. Narrative summaries were also used. A total of 6,472 participants from seven studies were included in the meta-analysis. A random-effects model demonstrated a significantly higher maternal night-time sleep in breastfeeding mothers than non-breastfeeding mothers with a pooled standardized mean difference of 0.24 h (95% confidence interval 0.03-0.46, p = 0.026). Co-sleeping with infants during the night also increased the sleeping hours in breastfeeding mothers. Homogeneity was observed with a Tau² of 0.0308 and I² of 44.3%. Funnel plots, Egger's and Begg's tests revealed no evidence of publication bias. This systematic review and meta-analysis demonstrated that breastfeeding may be associated with a longer night-time sleep postpartum and the synthesis of the literature suggested that co-sleeping with the infant was associated with longer sleep duration in breastfeeding women. Further research into factors involving maternal decisions on infant feeding types and their effects on maternal sleep is needed to better understand the mothers' attitude toward infant feeding and their own sleep.

Changes in parental sleep from pregnancy to postpartum: A meta-analytic review of actigraphy studies

Sleep changes in new parents are widely observed but there is no extant meta-analysis of changes to sleep parameters in this group. We completed a meta-analysis of changes in actigraphy-measured parent sleep between pregnancy and the end of the first year of a child's life. A search of six databases was completed. Following review using predetermined inclusion and exclusion criteria, 16 papers were left for review. Data were extracted, analysed and each paper was reviewed for methodological quality. Where possible, subgroup analysis was completed based on time since birth and location of the study, and meta-regression of parent age. Parents' total sleep time and sleep efficiency were shown to decrease following the birth of a child, with wake after sleep onset increasing. This change was most notably observed in the first four weeks after birth. Up to 16 weeks post-birth, differences were still apparent, but sleep parameters were beginning to return to pre-birth levels. New parents experience a significant change in multiple sleep parameters following the birth of a child. Future data collection, using best practice actigraphy measurement, reporting a broader range of variables and including fathers, as well as mothers, is warranted.

Racial/ethnic disparities in subjective sleep duration, sleep quality, and sleep disturbances during pregnancy: an ECHO study

In the United States, racial/ethnic minoritized groups experience worse sleep than non-Hispanic Whites (nHW), but less is known about pregnant people. This is a key consideration since poor sleep during pregnancy is common and associated with increased risk of adverse perinatal outcomes. This study reports the prevalence of subjective sleep measures in a multi-racial/ethnic pregnant population from the Environmental influences on Child Health Outcomes (ECHO) program. Participants' self-reported race and ethnicity were grouped into: nHW, non-Hispanic Black/African American (nHB/AA), Hispanic, non-Hispanic Asian (nHA). Analyses examined trimester-specific (first (T1), second (T2), third (T3)) nocturnal sleep duration, quality, and disturbances (Pittsburgh Sleep Quality Index and ECHO maternal sleep health questionnaire). Linear or multinomial regressions estimated the associations between race/ethnicity and each sleep domain by trimester, controlling for body mass index and age, with nHW as reference group. We repeated analyses within maternal education strata. nHB/AA participants reported shorter sleep duration (T2: β = -0.55 [-0.80,-0.31]; T3: β = -0.65 [-0.99,-0.31]) and more sleep disturbances (T2: β = 1.92 [1.09,2.75]; T3: β = 1.41 [0.09,2.74]). Hispanic participants reported longer sleep duration (T1: β = 0.22 [0.00004,0.44]; T2: β = 0.61 [0.47,0.76]; T3: β = 0.46 [0.22,0.70]), better sleep quality (Reference group: Very good. Fairly good T1: OR = 0.48 [0.32,0.73], T2: OR = 0.36 [0.26,0.48], T3: OR = 0.31 [0.18,0.52]. Fairly bad T1: OR = 0.27 [0.16,0.44], T2: OR = 0.46 [0.31, 0.67], T3: OR = 0.31 [0.17,0.55]), and fewer sleep disturbances (T2: β = -0.5 [-1.0,-0.12]; T3: β = -1.21 [-2.07,-0.35]). Differences persisted within the high-SES subsample. Given the stark racial/ethnic disparities in perinatal outcomes and their associations with sleep health, further research is warranted to investigate the determinants of these disparities.

Non-pharmacological Interventions for Improving Sleep Quality During Pregnancy: A Systematic Review and Meta-Analysis

OBJECTIVE

 To investigate the effect of non-pharmacological interventions to improve sleep quality during pregnancy.

DATA SOURCES

 A search was made in the NCBI/PubMed, ClinicalTrials.gov, Embase, BVS, and Web of Science databases. There were no limitations regarding language, sample size, and type of non-pharmacological intervention. We have included prospective clinical trials between July 2014 and July 2019.

SELECTION OF STUDIES

 This study was registered in the Prospective International Registration of Systematic Reviews (PROSPERO) database was performed. Publication bias was also assessed with funnel plots. the primary outcome was the total score in the Pittsburgh Sleep Quality Index (PSQI) before and after intervention. Risk of bias and the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) criteria were used for assessing methodological quality. From the 28 retrieved studies, we have selected 8 for qualitative analysis and 6 for meta-analysis.

DATA COLLECTION

 Two independent reviewers performed the study selection. In the case of disagreement, a third senior reviewer was consulted. The study was initially assessed based on the title, followed by abstract. Lastly, the full text was assessed to be included.

DATA SYNTHESIS

 A significant improvement on the sleep quality (PSQI score) was observed when all interventions were grouped (MD = -3.03, 95%CI -4.15 to -1.92, n = 623, i² = 84%, p < 0.001). Analysis by subgroup (music listening: MD = -1.96, 95% CI -3.27 to -0.65, n = 207, i² = 67%, p = 0.003 and other interventions: MD = -3.66, 95% CI -4.93 to -2.40, n = 416, i2 = 80%, p < 0.001) showed an improvement, with high heterogeneity. Risk of bias has shown performance and detection bias for almost studies, and GRADE evidence was very low for all analyzed variables.

CONCLUSION

 Non-pharmacological interventions-listening to music, physical exercise, relaxation exercises, lettuce seed, sleep hygiene, and acupressure-are effective for improving sleep quality during pregnancy.

Trajectories and Depressive Symptoms During the Perinatal Period: A Longitudinal Population-Based Study in China

Most women in the perinatal period face sleep issues, which can affect their mental health. Only a few studies have focused on sleep trajectories and depressive symptoms of women during the perinatal period in China. This study aims to explore the development trajectory of sleep quality by classifying pregnant women according to the changes in their sleep quality during pregnancy and postpartum and investigate the correlation between different sleep quality trajectory groups and depressive symptoms. The Pittsburgh Sleep Quality Index (PSQI) was used to assess the sleep quality, and the Edinburgh Postnatal Depression Scale (EPDS) was used to assess the symptoms of depression. Participants (n = 412) completed the assessment of sleep quality, depressive symptoms, and some sociodemographic and obstetric data at 36 weeks of gestation, 1 week after delivery, and 6 weeks after delivery. The group-based trajectory model (GBTM) was used to complete the trajectory classification, and logistic regression was used to analyze the predictive factors of postpartum depressive symptoms. Four different sleep quality trajectories were determined: "stable-good," "worsening," "improving," and "stable-poor" groups. The results demonstrate that poor sleep trajectories, social support and parenting experience during the perinatal period are related to postpartum depression. Screening for prenatal sleep problems is crucial for identifying the onset of perinatal depressive symptoms.

Infant sleep and temperament characteristics in association with maternal postpartum depression

OBJECTIVE

Aim of this study was to examine the association between infant temperament and sleep characteristics and postpartum depressive symptoms among mothers.

STUDY DESIGN

Research data were collected at the baseline (2nd -4th days postpartum) and the follow-up (6-8 weeks postpartum), Slovak version of the (EPDS) was used, along with questions focused on perceived sleeping problems of an infant, and temperament Linear regression models were employed.

SETTING

Two public hospital sites in Slovakia.

PARTICIPANTS

204 women participated in both time points (mean age 30.9 ± 4.8, age range: 20-44; 78.9% vaginal births; 56.9% primiparas).

RESULTS

Significant differences in the EPDS scores were found according to infant sleeping problems (p ≤ 0.05) and duration of infant night sleep (p ≤ 0.01). Both night sleep and day sleep duration were significant predictors for the level of postpartum depression symptoms at the 6-8 weeks follow-up in the linear regression model after adjusting for confounding variables (β= -0.13; 95%CI: -3.04;-0.01; β= -0.15; 95%CI: -3.02;-0.28, total explained variance 39.0%). Infant temperament characteristics have not been found significant predictors of postpartum depression symptoms in this study.

KEY CONCLUSIONS

Significant differences in depression levels were found among postpartum women according to perceived sleeping problems of infant, and the duration of infant night sleep. It is important to focus more attention on the role of infant sleeping problems as a possible risk factor for the increased occurrence of postpartum depressive symptoms.

Evaluation of salivary melatonin concentrations as a circadian phase maker of morning awakening and their association with depressive mood in postpartum mothers

The disruption of circadian rhythm is closely related to mood disorders in night-shift workers, and a similar situation may occur in postpartum mothers. However, the situations of postpartum mothers remain largely unknown because of a lack of an appropriate circadian phase marker in the clinical setting. This study aimed to evaluate whether salivary melatonin concentration at awakening can identify misalignment between awakening time and the biological clock system, which might be associated with depressive mood in some mothers. Ninety-eight healthy mothers who were currently the primary parental caregivers were recruited at 1 month after delivery. All mothers completed the Edinburgh Postnatal Depression Scale (EPDS) and wore an actigraphy watch at home for 3 consecutive days to determine nocturnal sleep variables. While wearing the actigraphy watch, they also collected saliva samples during the awakening period for a melatonin concentration assay. The results indicated that daily salivary melatonin levels after 30 min of awakening (hereafter, melatonin levels) were positively correlated with sleep onset time and negatively correlated with sleep offset time and total sleep time. Six mothers with an EPDS score of ≥9 (the cutoff value for Japanese women at high risk for postnatal depression) had an average melatonin level of either <4 pg/ml or >16 pg/ml for 3 d. Mothers with melatonin levels <4 pg/ml or >16 pg/ml tended to have elevated EPDS scores (4.93 ± 2.95 or 4.20 ± 2.93, mean ± standard deviation) compared with mothers with melatonin levels between 4 and 16 pg/ml (3.00 ± 2.12, p = .053). Mothers whose melatonin levels were >16 pg/ml had relatively later sleep onset time and shorter nocturnal sleep duration. Backward stepwise regression demonstrated that such high/low levels of melatonin were a significant predictor of EPDS scores. These results suggest that elevated melatonin levels after 30 min of awakening could identify a phase-delayed circadian rhythm in postpartum mothers, and that relatively higher or lower melatonin levels could be associated with increased depressive mood.

Maternal lack of sleep in the first two years after childbirth: Perceived impacts and help-seeking behaviors

Most evidence-based sleep interventions (e.g., graduated extinction of nighttime crying) are in opposition to many parents' values. This warrants taking a step back and asking the parents about their main concerns regarding their baby's sleep and the type of help they would be likely to use. This study aimed to describe and identify, among mothers of a 0- to 24-month-old child, the perceived impact of lack of sleep, sleep-related help-seeking behaviors as well as the most concerning aspects of the child's sleep, and preferred sleep intervention modalities. Another objective was to identify the factors associated with a negative impact of postpartum sleep, concerns for the child's sleep, and interest in sleep interventions. Canadian mothers (N = 932) were recruited by email snowball sampling and through Facebook to complete an online questionnaire designed for the purposes of the study. Most mothers reported a negative impact of postpartum sleep on their romantic relationship (79.4%) and quality of life (76.7%). Low parental self-efficacy (PSE) about managing the child's sleep was the best predictor of a negative impact of lack of sleep and sleep-related concerns, above and beyond any other child's or mother's characteristics. The preferred intervention modalities were reliable websites and online courses on child sleep, with a greater interest in home visits among mothers who need help the most (low self-efficacy, high concerns). Interventions should aim at increasing PSE about the child's sleep in both parents and include home visits for those who need it the most.

Demographic, Pregnancy-Related, and Health-Related Factors in Association with Changes in Sleep Among Pregnant Women with Overweight or Obesity

BACKGROUND

Women with prepregnancy overweight/obesity are at high risk for obstetric complications and cardiometabolic disease. Poorer sleep quality is associated with obesity in non-pregnant individuals and, during pregnancy, poor sleep predicts negative obstetric and health outcomes. This study examined sleep patterns among women with overweight/obesity and factors associated with different sleep trajectories during pregnancy.

METHODS

Women (N = 146, 17-40 years old) with a prepregnancy body mass index ≥ 25 kg/m² were recruited during early pregnancy. Participants reported demographic information and completed the Pittsburgh Sleep Quality Index (PSQI) at up to six monthly assessments, with the first assessment occurring between 12 and 20 weeks gestation and the final assessment between 35 weeks gestation and delivery. PSQI scores > 5 indicate "poor sleep."

RESULTS

On average, women's PSQI scores were 6.66 ± 3.58 in the first half of pregnancy and were significantly higher (worse) at the end of pregnancy (t(644) = 4.55, p < 0.001), with the greatest change occurring in the third trimester (t(636.3) = 3.72, p < 0.001). Women who currently smoked had poorer sleep than women who did not currently smoke (t(1) = 2.29, p = 0.02). Prepregnancy weight status, age, parity, race, education, and income were not significantly associated with sleep changes (t(1) < 1.76, ps > 0.08). The percentage of women with PSQI scores > 5 (the threshold for poor sleep quality) was 37-63% across assessments, with the greatest increase occurring during the third trimester (t(633) = 2.92, p = 0.004).

CONCLUSIONS

Sleep quality worsens during the third trimester and is associated with current smoking. Future studies of sleep during pregnancy should examine health outcomes among women with overweight/obesity and early intervention to mitigate sleep disturbances as pregnancy progresses.

Associations of Sleep With Sedentary Behavior and Physical Activity Patterns Across Pregnancy Trimesters

INTRODUCTION

Sleep, sedentary behavior, and moderate-to-vigorous physical activity (MVPA) are altered in pregnancy and may affect pregnancy health; however, how these behaviors are associated with each other is unclear.

METHODS

Pregnant women (N = 120) completed the Pittsburgh Sleep Quality Index and wore an activPAL3 micro and ActiGraph GT3X for 7 days in each trimester to assess sleep, sedentary behavior, and MVPA, respectively. Latent trajectories described patterns of sleep duration, efficiency, and quality as well as sedentary behavior and MVPA. Multinomial logistic regression examined associations of sleep patterns with sedentary behavior and MVPA patterns and, in exploratory analyses, with adverse pregnancy outcomes.

RESULTS

Trajectories were identified for sleep duration (consistently short, 20.7% of sample; consistently adequate, 79.3%), efficiency (consistently low, 17.5%; consistently high, 82.5%), and quality (consistently poor, 15.1%; worsening, 23.5%; and consistently good, 61.5%). Compared with those in more optimal sleep groups, women in the short duration, low efficiency, and worsening quality groups had lower odds of being in the moderate and/or high sedentary behavior group (odds ratio range, 0.21-0.31; 95% confidence interval range, 0.09-0.65). Women in the worsening quality group had greater odds of being in the low MVPA group (odds ratio, 2.51; 95% confidence interval, 1.18-5.38). Trends were observed with women in less optimal sleep groups having greater odds of adverse pregnancy outcomes and lower odds of excessive gestational weight gain.

CONCLUSIONS

Less optimal sleep patterns in pregnancy are associated with less sedentary behavior and MVPA; additional research is needed to confirm associations between sleep and pregnancy outcomes.

A prospective study on the course of sleep disturbances in first-time fathers during the transition to parenthood

INTRODUCTION

This study examined sleep disturbances in first-time fathers from the third trimester of their partner's pregnancy to 2 months postpartum to determine prevalence, incidence, and persistence of sleep disturbances and identify associated determinants.

METHODS

Men expecting their first child were recruited from local prenatal classes and university-affiliated obstetric clinics. During their partner's third trimester of pregnancy and 2 months postpartum, 459 men completed standardized online self-report questionnaires measuring sociodemographics, lifestyle, and psychosocial variables and sleep quality.

RESULTS

Disturbed sleep (Pittsburgh Sleep Quality Index [PSQI] global score >5) increased from 29.6% during the third trimester to 44.7% at 2 months postpartum. The incidence of poor sleep at 2 months postpartum was 33.7%. Among men with disturbed sleep at the antenatal assessment, 70.6% continued to have sleep disturbances at 2 months postpartum. An increase in depressive symptoms and higher parenting stress was independently associated with onset and persistence of disturbed sleep at 2 months postpartum.

CONCLUSIONS

Sleep is compromised in expectant and new fathers. Strategies aimed at improving sleep, depressed mood, and managing the challenges of parenting may be important components to include in prenatal interventions aimed at enhancing the transition to parenthood and infant development.

Association Between Recent Experience of Childbirth and Sleep Quality in South Korean Women: Results from a Nationwide Study

INTRODUCTION

Although women commonly report deterioration of sleep quality postpartum, this relationship has been less studied in East Asian countries. This study investigated the association between recent experience of childbirth and sleep quality in South Korean women and additionally examined how healthy practice behavior interplays in the stated relationship.

METHODS

Data from the 2018 Community Health Survey were used. Sleep quality was measured using the Pittsburgh sleep quality index (PSQI). Women who responded to have given birth in the past year were categorized as having a recent experience of childbirth. The general characteristics of the study population were investigated using chi-square test. The association between the dependent and independent variables was analyzed using multivariate logistic regression analysis.

RESULTS

Of a total of 41,708 study participants, 16,877 (40.5%) individuals reported poor sleep quality. Poor sleep quality was more common in women with a recent experience of childbirth (48.4%) than those without (40.0%). Compared to individuals without a recent experience of childbirth, those with such an experience were more likely to show poor sleep quality (OR 1.50, 95% CI 1.34-1.68). Such differences were reduced in individuals with a healthy lifestyle.

CONCLUSION

Recent experience of childbirth was associated with higher likelihoods of poor sleep quality in women. The degree of risks found was reduced in individuals practicing a healthy lifestyle habit. The findings infer the need to monitor and address sleep-related disturbances commonly reported among postpartum women.

A pilot longitudinal sleep education intervention from early pregnancy and its effect on optimizing sleep and minimizing depressive symptoms

OBJECTIVES

Investigate the efficacy of a pilot longitudinal sleep education program for optimizing sleep and minimizing depressive symptoms in nulliparous pregnant women.

DESIGN

Early and longitudinal sleep education intervention pilot study.

SETTING

Community-based convenience sample of New Zealand women.

PARTICIPANTS

15 nulliparous women who were involved in a pilot of a longitudinal sleep education intervention during pregnancy (N = 15) were compared to a comparison group (n = 76) from another observational study with the same time points. Groups were matched on depression history and parity.

INTERVENTION

A longitudinal sleep education program was developed. Women in the intervention group participated in three individualized and trimester specific education sessions designed to increase sleep knowledge and improve sleep practices. The comparison group received no sleep education.

MEASUREMENTS

Self-reports of depressive symptoms and five dimensions of sleep (duration, quality, continuity, latency, daytime sleepiness) were compared between groups using linear mixed model analysis of variance.

RESULTS

At the conclusion of the intervention, the intervention group had fewer depressive symptoms with none experiencing clinically significant depressive symptoms, while 21% of the comparison group were considered to have clinically significant depressive symptoms. The intervention group also had better sleep quality, sleep initiation and sleep continuity than the comparison group at late pregnancy.

CONCLUSIONS

Findings suggest that a longitudinal sleep education intervention commencing early in pregnancy may be effective in optimizing sleep and minimizing depressive symptoms for nulliparous women with a history of depression. Further investigation of sleep education interventions to improve maternal mental health in pregnancy and postnatally is warranted.

Self-Reported Sleep Quality and Actigraphic Measures of Sleep in New Mothers and the Relationship to Postpartum Depressive Symptoms

Objective: This study's purpose is to examine relationships between self-reported sleep quality, actigraphy data, and depressive symptoms in a sample of women at 6 and 12 weeks postpartum. Methods: This secondary analysis of data from a randomized controlled trial (RCT) of a behavioral sleep intervention measured sleep with actigraphy and self-report. Self-reported measures included the General Sleep Disturbance Scale (GSDS) and mothers' reports of their sleep as a "small/big/no" problem. Depression was measured with the Edinburgh Postnatal Depression Scale (EPDS). Control variables included group allocation, baseline EPDS, and social support. Logistic regression estimated the association between self-reported and actigraphic measures of sleep and the presence of postpartum depressive symptoms. Separate models estimated the odds of depression according to each sleep variable. Results: In 217 first-time mothers, GSDS scores in the last week of pregnancy were not related to depression; however, GSDS scores at 6 weeks postpartum were associated with > 3 times the odds of depressive symptoms (OR = 3.56; 95% CI = 1.73-7.33) at either 6 or 12 weeks postpartum. The perception that sleep was a "small" or "big" problem at 6 weeks was associated with > 3 (OR = 3.40; 95% CI = 1.54-7.46) and > 8 (OR = 8.29; 95% CI = 2.41-28.59) times the odds of depressive symptoms at either 6 or 12 weeks, respectively. Significant associations between actigraphic sleep measures and depressive symptoms were not found. Conclusion: Self-reported sleep quality is strongly associated with postpartum depressive symptoms. Sleep concerns may be an important clinical indicator of low mood in the postpartum period. Future intervention studies to improve mood could target sleep concerns via cognitive-behavioral strategies.

Long-term effects of pregnancy and childbirth on sleep satisfaction and duration of first-time and experienced mothers and fathers

STUDY OBJECTIVES

To examine the changes in mothers' and fathers' sleep satisfaction and sleep duration across prepregnancy, pregnancy, and the postpartum period of up to 6 years after birth; it also sought to determine potential protective and risk factors for sleep during that time.

METHODS

Participants in a large population-representative panel study from Germany reported sleep satisfaction and sleep duration in yearly interviews. During the observation period (2008-2015), 2541 women and 2118 men reported the birth of their first, second, or third child and provided longitudinal data for analysis. Fixed-effects regression models were used to analyze changes in sleep associated with childbirth.

RESULTS

Sleep satisfaction and duration sharply declined with childbirth and reached a nadir during the first 3 months postpartum, with women more strongly affected (sleep satisfaction reduction compared with prepregnancy: women, 1.81 points on a 0 to 10 scale, d = 0.79 vs. men, 0.37 points, d = 0.16; sleep duration reduction compared with prepregnancy: women, 62 min, d = 0.90 vs. men, 13 min, d = 0.19). In both women and men, sleep satisfaction and duration did not fully recover for up to 6 years after the birth of their first child. Breastfeeding was associated with a slight decrease in maternal sleep satisfaction (0.72 points, d = 0.32) and duration (14 min, d = 0.21). Parental age, household income, and dual vs. single parenting were unrelated, or only very weakly related, to improved sleep.

CONCLUSIONS

Following the sharp decline in sleep satisfaction and duration in the first months postpartum, neither mothers' nor fathers' sleep fully recovers to prepregnancy levels up to 6 years after the birth of their first child.

Prospective association between suicide cognitions and emotional responses to a laboratory stressor: The mediating role of nightly subjective sleep quality

BACKGROUND

Sleep is a reliable correlate of suicidal thoughts and behaviors (STBs), yet few studies have directly examined negative affect in the context of this association. The present study combined daily experience methods with a laboratory paradigm to investigate suicide cognitions as a predictor of emotional responses to environmental stressors, and tested the role of nightly sleep parameters.

METHOD

72 participants (M_age = 24.25; 41 with a recent history of suicide ideation and 31 without a history of STBs) completed a four-day study. Suicide cognitions were measured on the first day, and actigraphy-based sleep duration and fragmentation, and morning ratings of prior night subjective sleep quality (SSQ) were subsequently measured over three consecutive nights. Participants returned on the fourth day to complete the Trier Social Stress Task, where self-report changes in negative affect immediately post-task (i.e., reactivity) and five minutes post-task (i.e., recovery) were observed.

RESULTS

Regression analyses indicated that suicide cognitions predicted negative affect reactivity and recovery. Simple mediation analyses revealed that SSQ partially mediated the relation between suicide cognitions and negative affect recovery (especially shame), but not reactivity. No significant associations were observed for the actigraphy-based sleep parameters.

LIMITATIONS

Just three nights of actigraphy-based data collection. A single item was used to measure SSQ.

CONCLUSIONS

Suicide cognitions predict negative affective responses to situational stressors and SSQ may have a key role in this effect, especially the duration of negative emotional reactions. Hence, sleep and emotional reactivity may be potential targets for suicide prevention efforts.

Longitudinal links between maternal factors and infant cognition: Moderation by infant sleep

The current study examined the moderating role of infant sleep in the link between maternal factors (i.e., maternal education, depressive symptoms, sleep disturbance) and infant cognition. Data come from 95 African American parent-child dyads. At 3 months of age, infant sleep was objectively measured using videosomnography and actigraphy, from which measures of sleep regulation and consolidation were calculated. Mothers also self-reported their level of education, depressive symptoms, and sleep quality. At 6 months of age, infants completed cognitive assessments, including a measure of general cognitive ability and observed attention behavior. Findings revealed that infant sleep quality interacted with maternal education and sleep disturbances to predict cognition. Specifically, the link between maternal education and infants' attention behavior was significant and positive for infants with better regulated sleep, but not for infants with poorly regulated sleep. Similarly, the link between maternal sleep disturbance and infant cognition depended on infant sleep quality. For infants with poorer sleep consolidation, increased maternal sleep disturbance predicted poorer infant general cognitive ability. For infants with better sleep consolidation, maternal sleep disturbance was positively related to both general cognitive ability and attention behavior. These findings suggest that infant sleep quality moderates the impact of environmental factors on cognitive functioning.

Internet-based interpersonal psychotherapy for stress, anxiety, and depression in prenatal women: study protocol for a pilot randomized controlled trial

BACKGROUND

Psychological distress, defined as depression, anxiety and perceived stress, during pregnancy is common, with 15-25% of women experiencing clinically significant levels of such distress. Despite the far-reaching impact of prenatal psychological distress on mothers and their children, and that women are receptive to screening, few providers routinely screen for prenatal psychological distress and less than one in five women will receive the mental health care that they require. There is a lack of certainty regarding the most effective treatments for prenatal psychological distress. No online interpersonal psychotherapy (IPT) trials have been conducted that focus on improving psychological distress in prenatal women. The purpose of this pilot randomized controlled trial is to evaluate the perspectives of pregnant women on the feasibility and acceptability of online IPT (e-IPT) delivered during pregnancy.

METHODS

A pilot randomized controlled trial design with repeated measures will evaluate the feasibility and acceptability of e-IPT for pregnant women compared to routine prenatal care. Qualitative interviews with 15-30 individuals in the intervention group will provide further data on the feasibility and acceptability of the intervention. Assessment of feasibility will include the ease of accessing and completing the intervention. Women will also be asked about what barriers there were to starting and completing the e-IPT. Assessment of acceptability will inquire about the perception of women regarding the intervention and its various features. A sample size of 160 consenting pregnant women aged 18 years and older will be enrolled and randomized into the experimental (e-IPT) or control (routine care) condition. The secondary outcome measures include: depression, anxiety and stress symptoms; self-efficacy; self-mastery; self-esteem; relationship quality (spouse, immediate family members); coping; and resilience. All participants will complete the aforementioned measures at baseline during pregnancy (T1), 3 months postrandomization (T2), at 8 months of pregnancy (T3), and 3 months postpartum (T4).

DISCUSSION

The results of this pilot randomized controlled trial will provide data on the feasibility and acceptability of the intervention and identify necessary adaptations. This study will allow for optimization of full trial processes and inform the evaluation strategy, including sample size calculations for the full randomized controlled trial.

TRIAL REGISTRATION

ClinicalTrials.gov, NCT01901796. Registered on 18 December 2014.

Effect of maternal sleep in late pregnancy on leptin and lipid levels in umbilical cord blood

OBJECTIVES

To study the impact of maternal sleep in late pregnancy on birth weight (BW) and leptin and lipid levels in umbilical cord blood.

STUDY DESIGN

A total of 277 healthy and singleton pregnancy women were recruited for participation in the Shanghai Sleep Birth Cohort Study (SSBC) during their 36-38 weeks of pregnancy, from May 2012 to July 2013. Maternal night sleep time (NST), sleep efficiency (SE), sleep onset latency (SOL) and the percentage of wake after sleep onset (WASO) in NST and midpoint of sleep (MSF) were measured by actigraphy for seven consecutive days. The leptin and lipid levels were determined in cord blood samples collected from the umbilical vein immediately after delivery. Birth information (birth weight, gender, delivery type, etc.) was extracted from medical records. A multivariable linear regression model was applied to examine the effect of maternal sleep in late pregnancy on newborn leptin and lipid levels in umbilical cord blood.

RESULTS

A total of 177 women and their infants were included in the analysis. Maternal mean NST was 7.03 ± 1.10 h in late pregnancy, and 48% had a shorter sleep time (NST < 7 h). The average maternal SE was 72.54% ± 9.66%. The mean percentage WASO/NST was 21.62% ± 9.98%; the average MSF was about 3:34 (0:53); and the SOL was 46.78 ± 36.00 min. After adjustment for confounders, both maternal NST and SE were found to be significantly associated with triglyceride levels (β = -0.219, p = 0.006; β = -0.224, p = 0.006) in umbilical cord blood; and maternal NST was also observed to have positive association with newborn leptin levels (β = 0.146, p = 0.047). However, we did not find significant association between other maternal sleep parameters in late pregnancy and leptin and lipid levels and birth weight.

CONCLUSIONS

Short sleep duration and poor sleep quality during late pregnancy were associated with newborn leptin and lipid levels, and efforts on improving maternal sleep during late pregnancy should be advocated for children's health.

Poor Postpartum Sleep Quality Predicts Subsequent Postpartum Depressive Symptoms in a High-Risk Sample

STUDY OBJECTIVES

Postpartum depression (PPD) occurs in 15% to 20% of mothers worldwide and is associated with adverse outcomes for mother and child. Prior research has established a relationship between concurrent sleep quality and PPD. We conducted a secondary analysis in 45 women with mood disorders to study overall sleep quality (and individual components of sleep), measured in the early postpartum period, as a predictor of subsequent PPD.

METHODS

We measured sleep quality using the Pittsburgh Sleep Quality Index (PSQI; subscale and total scores) at 1 month postpartum (and during the third trimester). We measured depressive symptoms using the Inventory of Depressive Symptoms, Self-Report (IDS-SR) at 3 months postpartum. We used bivariate and multivariate linear regression models to study the association between PSQI and IDS scores.

RESULTS

We found that higher global PSQI scores as well as higher component scores for self-reported sleep quality, sleep latency, sleep efficiency, sleep medication usage, and daytime dysfunction, measured 1 month postpartum, were associated with increased IDS scores (at 3 months postpartum (P = .01, .01, .01, .003, < .001, respectively). We did not find an association between poor sleep quality in the third trimester and PPD.

CONCLUSIONS

Poor sleep quality in the early postpartum period independently predicts development of later PPD. This is clinically significant and highlights the importance of sleep interventions as an immediate postpartum therapeutic tool.

CITATION

McEvoy KM, Rayapati D, Washington Cole KO, Erdly C, Payne JL, Osborne LM. Poor postpartum sleep quality predicts subsequent postpartum depressive symptoms in a high-risk sample. J Clin Sleep Med. 2019;15(9):1303-1310.

Sleeping problems during pregnancy-a risk factor for postnatal depressiveness

In the general population, sleeping problems can precede an episode of depression. We hypothesized that sleeping problems during pregnancy, including insomnia symptoms, shortened sleep, and daytime tiredness, are related to maternal postnatal depressiveness. We conducted a prospective study evaluating sleep and depressive symptoms, both prenatally (around gestational week 32) and postnatally (around 3 months after delivery) in the longitudinal CHILD-SLEEP birth cohort in Finland. Prenatally, 1667 women returned the questionnaire, of which 1398 women participated also at the postnatal follow-up. Sleep was measured with the Basic Nordic Sleep Questionnaire (BNSQ) and depressive symptoms with a 10-item version of the Center for Epidemiological Studies Depression Scale (CES-D). Altogether, 10.3% of the women had postnatal depressiveness (CES-D ≥ 10 points). After adjusting for main background characteristics and prenatal depressiveness (CES-D ≥ 10), poor general sleep quality (AOR 1.87, 95% CI 1.21-2.88), tiredness during the day (AOR 2.19, 95% CI 1.41-3.38), short sleep ≤ 6 and ≤ 7 h, sleep latency > 20 min, and sleep loss ≥ 2 h were associated with postnatal depressiveness (all p < .050). Postnatally, after the adjustment for background characteristics, virtually all sleeping problems (i.e., difficulty falling asleep (AOR 7.93, 95% CI 4.76-13.20)), except frequent night awakenings per week or severe sleepiness during the day, were related to concurrent postnatal depressiveness. Thus, several prenatal and postnatal sleeping problems are associated with increased depressive symptoms 3 months postnatally. Screening of maternal prenatal sleeping problems, even without depressive symptoms during pregnancy or lifetime, would help to identify women at an increased risk for postnatal depressiveness.

Considering Sleep, Mood, and Stress in a Family Context: A Preliminary Study

Background: During the first years of life, parental sleep strongly depends on child’s sleep quality. Poor parental sleep may relate to increased stress and negative mood. However, there is a lack of sleep studies focusing on all family members. This study aimed to investigate the relationship between sleep, mood, and stress in mothers, fathers and children. Methods: Data were obtained from 65 parental couples and 65 children (2 to 36 months). Data on sleep for all family members and stress of parents were completed by both mothers and fathers through questionnaires and sleep diaries. Results: Toddlers’ positive mood before nocturnal sleep was significantly associated with reduced wake times after sleep onset. Mothers reported worse sleep quality compared to fathers. Shorter sleep onset latency in fathers and better sleep efficiency in mothers were linked with better self-reported mood upon awakening. In mothers, but not in fathers, poor sleep quality was associated with higher perceived stress. Conclusion: Results suggest bidirectional relationships between sleep and mood in children, mothers and fathers. Moreover, results evidence poorer sleep in mothers, compared to fathers, which was linked with increased parenting stress. This gender gap should be further considered in studies with larger samples and in clinical contexts.

"Doing the month" and postpartum depression among Chinese women: A Shanghai prospective cohort study

BACKGROUND

The Chinese postpartum custom of "doing the month" characterized by generous social support available through the traditional cultural practices was considered to protect women from postpartum depression in early puerperium.

METHODS

This study used data from the Shanghai Birth Cohort, a study of 2615 postpartum women from Shanghai, China, that was conducted between 2013 and 2016. Detailed information on the traditional "doing the month" practices and the on the Edinburgh Postnatal Depression Scale scores was collected from questionnaires administered on the 42nd day after childbirth. Logistic regression models were used to examine the association between the adopting traditional puerperium practices and postpartum depression.

RESULTS

The estimated prevalence of postpartum depression in women from the Shanghai area in China was 11.8% (n = 308) at six weeks postpartum. Women who went outside their homes during the first month postpartum showed higher risks of postpartum depression compared with those who never left the house (1-2 times: OR = 1.9, 95% CI = 1.4-2.4; 3-5 times: OR = 2.3, 95% CI = 1.5-3.5; ≥6 times: OR = 2.5, 95% CI = 1.2-5.1). Women with average sleep of 6 h or less per night were more likely to suffer from postpartum depression compared with those who slept 8 h (6 h: OR = 1.7, 95% CI = 1.2-2.4; less than 6 h : OR = 3.3, 95% CI = 2.2-5.0). Women who opened the house windows most of the time exhibited decreased risks of postpartum depression compared to those who never or rarely opened the windows (often: OR = 0.6, 95% CI = 0.4-0.9; always: OR = 0.4, 95% CI = 0.3-0.7).

CONCLUSIONS

Our results suggested that not all the activities of "doing the month" provided protection against developing PPD. This study emphasized the need for flexibility to fit and adjust the ritual into the modern life to enhance the positive effects of traditional practices on maternal health.

Perinatal Sleep Problems: Causes, Complications, and Management

Changes in sleep are ubiquitous in the perinatal period and it is important to be able to determine when these changes are significant enough to indicate sleep deficiency associated with increased risk for poor maternal and infant outcomes. Guidelines for identifying sleep deficiency include insomnia symptoms, excessively shortened sleep duration, and perception of insufficient or nonrestful sleep. Causes and complicating factors related to such sleep problems have been well-documented and are used to tailor behavioral and pharmacologic treatments for women who are pregnant or in the early postpartum period.

Non-pharmacological interventions for improving postpartum maternal sleep: A systematic review and meta-analysis

Evidence suggests that poor postpartum sleep quality is a risk factor for the development of postpartum depression. As such, non-pharmacological interventions have been developed to help improve sleep in the postpartum period. The primary aims of this systematic review and meta-analysis were to determine if non-pharmacological interventions improved maternal sleep and to compare the effectiveness of different intervention types. Secondary aims included examining effects on maternal mood and infant sleep. We searched MEDLINE, EMBASE, CINAHL, PsycINFO, and Web of Science from their inceptions to September 2017 and found 15 eligible studies. Non-pharmacological sleep interventions were found to improve subjective reports of maternal sleep (Cohen's d = -0.54, 95%CI = -0.88 to -0.19). Massage (Cohen's d = -1.07 95%CI = -1.34 to -0.79) and exercise (Cohen's d = -0.82 95%CI = -1.28 to -0.37) interventions had the largest impact on maternal sleep quality. Positive effects on nocturnal infant sleep were found for interventions overall (Cohen's d = -0.27 95%CI = -0.52 to -0.02) but not for maternal depression (Cohen's d = -0.08 95%CI = -0.28 to 0.12). Despite evidence suggesting improvements in subjective maternal sleep, more research must be conducted on the durability of effects of non-pharmacological interventions using objective measures of sleep quality.

A Postpartum Sleep and Fatigue Intervention Feasibility Pilot Study

The purpose of this pilot study was to evaluate the feasibility, acceptability, and cost of a self-management intervention for postpartum fatigue and sleep in socioeconomically disadvantaged urban women. Helping U Get Sleep (HUGS) is a theory-guided intervention developed from the Individual and Family Self-Management Theory. Medicaid-enrolled participants in the United States were recruited from an inpatient postpartum unit. Treatment and attention control interventions were delivered (15 HUGS, 12 comparison) at a week 3 postpartum home visit and 4 follow-up phone calls. Over the 9-week protocol, the HUGS group demonstrated significant improvements in subjective fatigue and subjective sleep disturbance relative to the comparison group. The HUGS intervention was feasible and acceptable, delivered on average, in 100 min and costing US$79 per participant.

Pregnancy and postpartum antidepressant use moderates the effects of sleep on depression

This study examined the course of antidepressant use, sleep quality, and depression severity from pregnancy through 6-month postpartum in women with and without a depressive disorder during pregnancy. Women (N = 215) were interviewed during pregnancy, 1- and 6-month postpartum. Mixed linear models were used to examine the longitudinal course and inter-relationships for the time-varying variables of antidepressant use, subjective sleep quality, and depression severity. Pregnant women with a depressive disorder who did not use antidepressants had more variable depression severity over time with improvements in depression severity by 6-month postpartum. In contrast, the depression severity of their medicated counterparts remained stable and high throughout. Pregnant women without a depressive disorder had worse sleep quality when using antidepressants compared with when they were not. Antidepressant use significantly strengthened the magnitude of the effect of sleep quality on depression severity in women with a depressive disorder during pregnancy. When prenatally depressed women use antidepressants, their sleep disturbance is more highly linked to depression severity than when they do not. Furthermore, antidepressants are not adequately treating the sleep disturbance of these women or their remitted counterparts, leaving both groups vulnerable to significant negative mental and physical health outcomes.

Sleep Quality and Quantity in Low-Income Postpartum Women

PURPOSE

To describe and explore patterns of postpartum sleep, fatigue, and depressive symptoms in low-income urban women.

STUDY DESIGN AND METHODS

In this descriptive, exploratory, nonexperimental study, participants were recruited from an inpatient postpartum unit. Subjective measures were completed by 132 participants across five time points. Objective sleep/wake patterns were measured by 72-hour wrist actigraphy at 4 and 8 weeks. Mean sample age was 25 years, high school educated with 3.1 children. Over half the sample reported an annual income less than 50% of the federal poverty level.

RESULTS

Objectively, total nighttime sleep was 5.5 hours (week 4) and 5.4 hours (week 8). Subjectively, 85% met criteria for "poor sleep quality" at week 4, and nearly half were persistently and severely fatigued through 8 weeks postpartum.

CLINICAL IMPLICATIONS

The majority (65%) of women in this study met the definition of "short sleep duration," defined as sleeping ≤ 6 hours per night. Adverse effects of this short sleep on physical and mental health as well as safety and functioning, especially within the context of poverty, may be profound. There is an urgent need for further research on sleep in low-income underrepresented women to identify interventions that can improve sleep and fatigue as well as discern the implications of sleep deprivation on the safety and physical and mental health of this population.

Sleep, Depression, and Fatigue in Late Postpartum

PURPOSE

To study the relation of infant characteristics and home environment on maternal sleep, depression, and fatigue in late postpartum.

STUDY DESIGN AND METHODS

Forty-two healthy mother-infant dyads completed a home-based study at infant age 32 weeks. Maternal measures included Patient Reported Outcomes Measurement Information System (PROMIS) sleep and wake disturbance, depression, and fatigue scales. Home regularity was assessed using the Confusion, Hubbub, and Order Scale (CHAOS). Infant sleep and regulation were measured respectively by the Brief Infant Sleep Questionnaire (BISQ) and Infant-Toddler Symptom Checklist (ITSC).

RESULTS

Significant correlations among maternal sleep and wake disturbance, fatigue, and depression were detected (r = .519 to .746, p < .01), but not with infant variables. Home regularity was significantly related with maternal variables (r = .597 to .653, p < .01).

CLINICAL IMPLICATIONS

Regularity of the home environment appears to contribute to maternal sleep, depression, and fatigue. Implications for intervention include establishment of daily routines and household management to improve regularity and consequently improve maternal outcomes.

How Postpartum Women With Depressive Symptoms Manage Sleep Disruption and Fatigue

Postpartum sleep and fatigue have bidirectional relationships with depressive symptoms and challenge women's everyday functioning. The everyday process of managing postpartum sleep and fatigue in the context of depressive symptoms remains unexplored. We conducted a grounded theory study with a sample of 19 women who screened positive on the Postpartum Depression Screening Scale (PDSS™) Short Form at 3 weeks postpartum. Women completed semi-structured in-home interviews and the full PDSS and Modified Fatigue Symptoms Checklist at 1, 3, and 6 months postpartum. The sample was on average 27 years old, with 2.8 children, and 63% were African-American. They described a basic social process of Finding a Routine Together, during which women's experiences with their infants progressed from Retreating at month 1 toward Finding a New Normal at month 6. In their work to Find a Routine Together, mothers' patterns of change over time were continuous, gradual, or prolonged. Their progress was influenced by depressive symptoms, social support, work and daycare, stability in social circumstances, and underlying stressors. This study's findings suggest the need to allocate resources and tailor interventions to meet the needs of women who are most vulnerable to the health effects of ongoing persistent severe fatigue, disordered sleep, and sub-clinical and clinical levels of depressive symptoms. © 2017 Wiley Periodicals, Inc.

Do changes in subjective sleep and biological rhythms predict worsening in postpartum depressive symptoms? A prospective study across the perinatal period

Abnormalities of sleep and biological rhythms have been widely implicated in the pathophysiology of major depressive disorder (MDD) and bipolar disorder (BD). However, less is known about the influence of biological rhythm disruptions across the perinatal period on postpartum depression (PPD). The objective of this study was to prospectively evaluate the relationship between subjective changes in both sleep and biological rhythms and worsening of depressive symptoms from pregnancy to the postpartum period in women with and without mood disorders. Eighty-three participants (38 euthymic women with a history of a mood disorder and 45 healthy controls) were studied. Participants completed subjective assessments of sleep (Pittsburgh Sleep Quality Index), biological rhythm disturbances (Biological Rhythms Interview of Assessment in Neuropsychiatry), and depressive symptoms (Edinburgh Postnatal Depression Scale) prospectively at two time points: third trimester of pregnancy and at 6-12 weeks postpartum. Multivariate regression analyses showed that changes in biological rhythms across the perinatal period predicted worsening of depressive symptoms in both groups. Moreover, women with a history of a mood disorder showed higher levels of sleep and biological rhythm disruption during both pregnancy and the postpartum period. These findings suggest that disruptions in biological rhythms during the perinatal period increase the risk for postpartum mood worsening in healthy pregnant as well as in pregnant women with a history of mood disorders.

Disturbed Sleep and Postpartum Depression

The perinatal period introduces a myriad of changes. One important but often overlooked change is an increased reporting of sleep disturbance. Although casually regarded as a consequence of pregnancy or postpartum, there is emerging evidence implicating significant sleep disturbance, characterized by insomnia symptoms and/or poor sleep quality, with adverse outcomes, such as an increase in depressive symptomatology or the development postpartum depression (PPD). Significant consequences may arise as a result including issues with maternal-infant bonding, effective care for the infant, and behavioral or emotional difficulties in the infant. This review discusses the relevant literature as to how disturbed sleep during pregnancy as well as in the postpartum may increase the risk for PPD.

Postpartum Maternal Sleep, Maternal Depressive Symptoms and Self-Perceived Mother-Infant Emotional Relationship

This study examined the links between maternal sleep, maternal depressive symptoms, and mothers' perceptions of their emotional relationship with their infant in a self-recruited sample of mothers. Eighty mothers of infants 3-18 months old completed sleep diaries for 5 consecutive nights, and questionnaires assessing sleep (Insomnia Severity Index [ISI]), depressive symptom severity (Edinburgh Postnatal Depression Scale [EPDS]), and perceived mother-infant relationship (Postpartum Bonding Questionnaire [PBQ] and Maternal Postnatal Attachment Questionnaire [MPAQ]). Significant correlations, controlling for depression severity, were found between more disturbed maternal sleep and more negative maternal perceptions of the mother-infant relationship. Regression analyses revealed that EPDS showed the strongest association with PBQ, whereas ISI demonstrated the strongest association with MPAQ. The present study highlights the importance of deepening and expanding our understanding of the negative implications of maternal sleep problems.

Postpartum depressive symptoms and its association to daytime sleepiness and restless legs during pregnancy

Background

Postpartum depression is a common condition, which consequences might be harmful for both mother and child. Since sleep and depression are closely related it is possible that women who suffer from sleep related problems during pregnancy are more likely to develop depression in the postpartum period. This study aims to investigate the possible association between depressive symptoms in the postpartum period and sleep related problems during pregnancy.

Methods

In this study 293 women in the last trimester of pregnancy answered a questionnaire about symptoms of restless legs, snoring and daytime sleepiness. They also completed the Epworth Sleepiness Scale (ESS). The same women were screened for depressive symptoms using the Edinburgh Postnatal Depression Scale (EPDS) four to ten weeks after giving birth. Additional information about social data, pregnancy and delivery was received from the medical charts.

Results

Women with postpartum depressive symptoms had higher prevalence of excessive daytime sleepiness defined as ESS score ≥10 (OR 3.84, CI 1.57–9.39), and restless legs syndrome (OR 2.837 CI 1.18–6.84) in last trimester of pregnancy, when adjusted for socio-demographic factors and obstetric risk factors. No association was found between postpartum depressive symptoms and snoring.

Conclusions

Depressive symptoms after childbirth are preceded by sleep related problems such as daytime sleepiness and restless legs, already during pregnancy. The results from Epworth Sleepiness Scale and a questionnaire concerning Restless Legs Syndrome completed during pregnancy might be a valuable contribution for detecting women at risk for postpartum depression, enabling preventive interventions.

Optimizing the treatment of mood disorders in the perinatal period

The perinatal period is a time of high risk for women with unipolar and bipolar mood disorders. We discuss treatment considerations for perinatal mood disorders, including unipolar and bipolar depression as well as postpartum psychosis. We further explore the unique issues faced by women and their families across the full trajectory of the perinatal period from preconception planning through pregnancy and following childbirth. Treatment of perinatal mood disorders requires a collaborative care approach between obstetrics practitioners and mental health providers, to ensure that a thoughtful risk : benefit analysis is conducted. It is vital to consider the risks of the underlying illness versus risks of medication exposure during pregnancy or lactation. When considering medication treatment, attention must be paid to prior medication trials that were most efficacious and best tolerated. Lastly, it is important to assess the impact of individual psychosocial stressors and lifestyle factors on treatment response.

Sleep, daily activity rhythms and postpartum mood: A longitudinal study across the perinatal period

Women with a diagnosis of bipolar and major depressive disorders are at higher risk to develop postpartum depression. The primary objective of this longitudinal study was to determine whether daily activity rhythms and sleep parameters differ between women with and without a history of a mood disorder across the perinatal period. A secondary objective was to determine whether changes in these parameters were associated with postpartum mood. In total, 33 women were included in this study, 15 of which had a history of a mood disorder (high-risk group) and 18 who did not (low-risk group). Sleep and daily rhythms were assessed subjectively and objectively during the third trimester (≥26 weeks gestation) and again at 6-12 weeks postpartum. Mood was also assessed at both time points. Women in the high-risk group showed greater subjective daily rhythms and sleep disturbances across the perinatal period. Objective sleep efficiency was worse in the high-risk group in the postpartum period. Changes in both subjective daily rhythms and objective sleep efficiency were predictive of changes in depressive symptoms across the perinatal period. These findings encourage the development of preventative therapeutics to ensure circadian rhythm and sleep stability throughout the perinatal period.

Stress, sleep, depression and dietary intakes among low-income overweight and obese pregnant women

This study investigated the mediating roles of sleep and depression on the relationships between stress, fat intake, and fruit and vegetable intake among low-income overweight and obese pregnant women by trimesters. Participants (N = 213) completed a self-administered survey including stress (exogenous variable), depression, sleep (mediators), fat intake, and fruit and vegetable intake (endogenous variables). Path analysis was performed to compare mediation effects among pregnant women in each trimester. Consistently across three trimesters, stress was related to depression but not sleep duration, night time sleep disturbance, sleep quality, sleep latency or fat intake. Sleep duration was not associated with depression. Depending on trimester, night time sleep disturbance, sleep quality, and sleep latency were related to depression; night time sleep disturbance and depression affected fat intake; stress influenced fruit and vegetable intake. Sleep duration, sleep disturbance, sleep quality, sleep latency and depression did not mediate the relationships between stress, fat intake, and fruit and vegetable intake in the second and third trimesters. However, depression mediated the relationship between stress and fat intake in the first trimester. Stress management interventions may help low-income overweight and obese pregnant women decrease depressive symptoms and therefore contribute to overall nutritional health.

Sleep and postpartum depression

PURPOSE OF REVIEW

The perinatal period introduces a myriad of changes. One important but often overlooked change is the increased risk for sleep disturbance. Although casually regarded as a consequence of pregnancy or postpartum, there is emerging evidence to suggest that women with significant sleep disturbance, characterized by insomnia symptoms and/or poor sleep quality, are more likely to report an increase in depressive symptomatology or develop postpartum depression (PPD). Significant consequences may arise as a result including issues with maternal-infant bonding, effective care for the infant and behavioral or emotional difficulties in the infant. This review discusses the relevant literature as to how disturbed sleep during pregnancy as well as in the postpartum may increase the risk for PPD.

RECENT FINDINGS

Symptoms of insomnia and poor sleep quality are independently associated with greater depressive symptoms across pregnancy and throughout postpartum. Likewise, both can negatively impact the ability to mother effectively.

SUMMARY

The presence of insomnia or sleep disturbance during the perinatal period is a risk factor for depressive symptoms. Women with depression are at an increased risk of developing sleep disturbance thereby increasing depressive symptomatology. This bidirectional and additive relationship needs more clinical attention as both sleep disturbance and depression are noted risk factors for adverse pregnancy outcomes.

Minimal Effect of Daytime Napping Behavior on Nocturnal Sleep in Pregnant Women

STUDY OBJECTIVES

To assess whether daytime naps negatively impact nocturnal sleep.

DESIGN

Longitudinal, prospective cohort design.

PARTICIPANTS

161 pregnant women recruited and evaluated in early gestation (10-20 weeks).

MEASUREMENTS AND RESULTS

Daily sleep information was collected in three 2-week periods (10-12, 14-16, and 18-20 weeks gestation) with a daily sleep diary and an actigraph. The average number of naps, as well as the average length of each nap, were calculated from sleep diaries. Women were categorized first as non nappers (0 naps/2-week period), moderate nappers (1-3 naps/2-week period), or frequent nappers (≥ 4 naps/2-week period). Then, based on the average nap length, they were categorized as short (< 90 min) or long (≥ 90 min) nappers. Nocturnal sleep parameters included SOL, WASO, SE, and TST. SAS procedure MIXED was used for modeling the main effects of nap group and time, and time by nap group interactions. Women who took naps had a decrease in diary-assessed nocturnal TST, but not actigraphy-assessed TST. This observation was group- and time-specific. There were no other group differences. Women who napped ≥ 90 min had poorer diary-assessed SE and lower diary-assessed TST than those who took shorter naps. Length of nap was not associated with any other sleep measures.

CONCLUSIONS

The number of daytime naps have minimal impact on nocturnal sleep parameters; however, long nappers did exhibit modestly impaired sleep continuity and sleep quality. Overall, we propose that daytime naps provide a beneficial countermeasure to the sleep disruption commonly reported by pregnant women. This may be clinically beneficial given that sleep continuity and quality are important correlates of pregnancy outcomes.

COMMENTARY

A commentary on this article appears in this issue on page 593.