NCT04314466

Brief Summary

The Shanghai Sleep Birth Cohort Study (SSBC) is a prospective observational study investigating the sleep condition of women in their third trimester and children from the age of 42 days to 6 years. Both subjective and objective tools were used to assess different sleep characteristics, including sleep duration, sleep rhythm and sleep quality. From August 2012 to June 2013, total 277 pregnant women from the eastern division of Renji Hospital in Pudong New Area, Shanghai were included in the study. Demographic information, physical examination, developmental and psychiatric assessment, diet and physical activity, as well as biological samples were collected for further analysis. Main findings of the current study showed the effect of sleep disturbances during the third trimester on emotional regulation and the influence of different sleep characteristics on children's social-emotional development

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
236

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started May 2012

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

May 20, 2012

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 12, 2013

Completed
6.3 years until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2020

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

March 11, 2020

Completed
8 days until next milestone

First Posted

Study publicly available on registry

March 19, 2020

Completed
Last Updated

March 19, 2020

Status Verified

March 1, 2020

Enrollment Period

1.3 years

First QC Date

March 11, 2020

Last Update Submit

March 16, 2020

Conditions

Outcome Measures

Primary Outcomes (8)

  • Maternal sleep measured by Pittsburgh Sleep Quality Index(PSQI)

    The PSQI total score represents the sum of component scores for subjective sleep quality, sleep latency, sleep duration, sleep efficiency, sleep disturbances, use of sleep medicine, and daytime dysfunction. A PSQI score \>5 defined poor sleep quality. Higher scores implied lower sleep quality or more severe sleep disturbance.

    changes from baseline,3 month, 6month, 9month, 12month, 18month, 24 month,36month,48month follow-up

  • Maternal sleep measured by Actiwatch

    Sleep assessment was a major part of the study. A 7-day assessment of mothers' sleep quality was conducted during the third trimester by using Actiwatch (Respironics, Inc.1001, Actiwatch 2) and sleep diary. Actiwatch is a sleep assessment system based on monitoring individual activity whose evaluation point is based on the sleep diary.

    baseline

  • Children sleep measured by Actiwatch

    Sleep assessment was a major part of the study. A 7-day assessment of mothers' sleep quality was conducted during the third trimester by using Actiwatch (Respironics, Inc.1001, Actiwatch 2) and sleep diary. Actiwatch is a sleep assessment system based on monitoring individual activity whose evaluation point is based on the sleep diary.

    changes from 3 month, 6month, 9month, 12month, 18month, 24 month,36month,48month,72month follow-up

  • Children sleep measured by Brief Infant Sleep Questionnaire(BISQ)

    Infant sleep problems reported by the mother and according to Brief Infant Sleep Questionnaire (BISQ). It is not a scale. The variables of the questionnaire included 1) nocturnal sleep duration (between the hours of 7 pm and 7 am); 2) daytime sleep duration (between the hours of 7 am and 7 pm); 3) number of night wakenings; 4) duration of wakefulness during the night hours (10 pm to 6 am); 5) nocturnal sleep-onset time (the time when the child falls asleep for the night); 6) settling time (latency to falling asleep for the night); 7) method of falling asleep; 8) location of sleep; 9) preferred body position; 10) age of child; 11) gender of child; 12) birth order; and 13) role of the responder who completed the BISQ. If the child woke up more than 3 times per night, spent more than 1 hour in wakefulness during the night, or spent less than 9 hours in sleep (day and night), then they were considered as poor sleepers.

    changes from birth, 42days,3 month, 6month, 9month, 12month, 18month, 24 month,36month follow-up

  • Children sleep measured by Children's Sleep Habits Questionnaire (CHSQ)

    Children's Sleep Habits Questionnaire (CHSQ) Sleep onset and wake up time in the past weekdays and weekends were collected from a parent reported Children Sleep Habits Questionnaire23 and sleep duration in weekdays and weekends was calculated separately. Daily average sleep duration was calculated using the formula: (\[weekday sleep duration×5\] + \[weekend sleep duration×2\])/7.

    changes from 48month, 72month follow-up

  • Children weight

    Child weight were obtained at each visit. Weight was measured using calibrated scales (birth to 24 months, Seca 335, Hamburg, Germany) and electronic personal scale (3-4 years, Seca 877, Hamburg, Germany).

    changes from birth,42days,3 month, 6month, 9month, 12month, 18month, 24 month,36month,48month,72month follow-up

  • Children length/height

    Child length/height were obtained at each visit.Recumbent length (birth to 24 months) was measured from the top of the head to the soles of feet using the same calibrated scale as weight. Standing height (2-4 years) was measured using a stadiometer (Seca 206, Hamburg, Germany) from the top of children's head to his or her heels.

    changes from birth,42days,3 month, 6month, 9month, 12month, 18month, 24 month,36month,48month,72month follow-up

  • Social-emotion

    The Strengths and Difficulties Questionnaire (SDQ) we use in this survey is a short screening questionnaire covering the current difficulties in social psychology (i.e. emotional symptoms, conduct problems, hyperactivity-inattention, peer problems), and personal strengths (i.e. prosocial behavior). High SDQ score is associated with an increase in psychiatric risk, on the opposite, prosocial behavior score is positive with prosocial behavior.

    changes from 36month,48month,72month follow-up

Eligibility Criteria

Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The prospective cohort study was conducted in the eastern division of the Renji Hospital and Shanghai Children's Medical Center in Pudong New Area, Shanghai, which aimed to explore how the perinatal and early life environmental and behavioral factors affect early child growth and development in a longitudinal and prospective mother-child cohort.

You may qualify if:

  • Long-term resident in Shanghai, and no relocation plan for 2 years
  • Ultrasonography indicated singleton pregnancy at 34-36 weeks
  • Willingness to participate in the study and engage in the follow-up at the specified time
  • Neonates were included if they were partus maturus

You may not qualify if:

  • Preterm labor symptoms during pregnancy
  • Gestational hypertension or gestational diabetes mellitus
  • Heart, liver, and kidney disease
  • Apgar score was 7 or below at 1 minute or 5 minutes with history of asphyxia at birth

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Shanghai children's medicial center affiliated shanghai jiaotong University School of Medicine

Shanghai, Shanghai Municipality, 2000127, China

Location

Biospecimen

Retention: SAMPLES WITH DNA

child: 20ml cord blood and a piece of placenta mother: 15ml venous blood father: 15ml venous blood

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

March 11, 2020

First Posted

March 19, 2020

Study Start

May 20, 2012

Primary Completion

September 12, 2013

Study Completion

January 1, 2020

Last Updated

March 19, 2020

Record last verified: 2020-03

Locations