A Cohort Study on Sleep Disorders During Pregnancy

Study Overview
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Brief Summary
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The goal of this observational study is to: 1) determine the prevalence of sleep disorders in pregnancy and the early postpartum; 2) identify factors associated with sleep disturbance during pregnancy and the early postpartum; 3) describe the progression of sleep quality and quantity as gestational age; 4) determine if sleep is associated with adverse perinatal outcomes. Participants were asked to wear a forehead sleep recorder for 4 consecutive days and to complete a sleep questionnaire at ten timepoints: at 3 months, 4 months, 5 months, 6 months, 7 months, 8 months, and 9 months pregnant and at 1 month, 2 months and 3 months postpartum.

Detailed Description
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There is a high incidence of sleep disturbances globally, especially among pregnant women. Long-term sleep disorders seriously affect the quality life of individuals, and it becomes undoubtedly an important public health problem. Studies have shown that sleep disorders during pregnancy can have short-term and long-term adverse effects on both mothers and their babies. In addition, sleep during pregnancy exhibits different characteristics at different stages. Most of the existing studies are based on the overall development trend to study sleep characteristics, ignoring potential individual differences. Based on the concept of precision medicine, this study intends to establish a cohort focusing on the sleep health of pregnant women, and carry out continuous home sleep monitoring of pregnant women from both subjective and objective perspectives. The aim of this study is, firstly, to explore the longitudinal change characteristics, potential classification and influencing factors of sleep during pregnancy; secondly, to analyze the differences in maternal and infant adverse outcomes among pregnant women with different sleep development trajectories. The final goal is to reveal the exposure window of maternal and infant adverse outcomes caused by sleep, thus improving the accuracy of outcome prediction, and promoting the development of accurate and personalized sleep management programs.

Official Title
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Sleep Trajectories Among Pregnant Women and Its Impact on Maternal and Infant Outcomes: a Prospective Cohort Study

Conditions
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Sleep Disorder

Intervention / Treatment
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* Other: No intervention


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Gestation age ≤ 13 weeks + 6 days 20 years old ≤ Age ≤ 40 years old Singleton pregnancy Give informed consent and able to participated Exclusion Criteria: Unmarried, divorced or widowed Women who suffered severe physical or mental illness Women who suffered death, abortion, stillbirth or neonatal death during the study Women who are participating in other studies Other reasons

Ages Eligible for Study
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Minimum Age: 20 Years
Maximum Age: 40 Years

Sexes Eligible for Study
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Female

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Sleep Cohort<br>This is an observational study. We plan to recruit 1000 pregnant women during 10-13 weeks gestational age to build a sleep cohort. Their sleep changes during pregnancy will be recorded for identifying similar groups. | Other: No intervention<br>* This is an observational study, no intervention will be implemented.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Preterm birth | Preterm birth refers to a body born before 37 weeks of gestation. It will be identified according to the medical history records. | delivery | 
| Caesarean section | Caesarean section refers to a baby delivered through an incision in the mother's abdomen. It will be identified according to the medical history records. | delivery | 
| Postpartum depression symptoms at 1 month after delivery | Postpartum depression symptoms at 1 month after delivery will be measured by the Edinburgh postpartum depression scale (EPDS). | 1 month after delivery | 
| Postpartum depression symptoms at 2 months after delivery | Postpartum depression symptoms at 2 months after delivery will be measured by the Edinburgh postpartum depression scale (EPDS). | 2 months after delivery | 
| Postpartum depression symptoms at 3 months after delivery | Postpartum depression symptoms at 3 months after delivery will be measured by the Edinburgh postpartum depression scale (EPDS). | 3 months after delivery | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| 1-minute Apgar score | Apgar is a quick test performed on a baby at 1 and 5 minutes after birth. It will be identified according to the medical history records. | 1 minute after delivey | 
| 5-minute Apgar score | Apgar is a quick test performed on a baby at 1 and 5 minutes after birth. It will be identified according to the medical history records. | 5 minutes after delivey | 
| Infant's length | It will be identified according to the medical history records. | delivey | 
| Infant's weight | It will be identified according to the medical history records. | delivey |