Fitbit Activity Tracker to Predict Risk of Preterm Birth
Quantitative Activity Levels and Gestational Age at Delivery: A Prospective Cohort Study Among Nulliparous Women
1 other identifier
observational
150
1 country
1
Brief Summary
Almost half of all deliveries in the United States are of nulliparous patients. They have been identified as an at-risk population for preterm birth. Historically, the most significant risk factor for preterm birth is a prior history of preterm birth, which cannot be applied to a nulliparous population. Forecasting adverse outcomes in first time moms is difficult to predict and prevent. Historically, physicians have prescribed a restriction in activity level for those at risk for preterm delivery. The utility of this intervention has yet to be prospectively and quantitatively studied. The Fitbit activity tracker is a wearable device that has been extensively used in medical research, in an attempt to quantitatively identify how patient activity levels can improve medical outcomes. The study uses the Fitbit device in nulliparous patients, remotely track their activity levels throughout pregnancy, and assess pregnancy outcomes. Because of the significant and long-standing health disparity in the incidence of preterm delivery, the investigators will use the "Everyday Discrimination Scale", a validated battery of racism and health to see how a patient's stress related to perceived discrimination may modify the risk of preterm delivery.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Oct 2017
1 active site
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
First Submitted
Initial submission to the registry
September 29, 2017
CompletedFirst Posted
Study publicly available on registry
October 9, 2017
CompletedStudy Start
First participant enrolled
October 24, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2019
CompletedStudy Completion
Last participant's last visit for all outcomes
July 1, 2019
CompletedNovember 29, 2019
November 1, 2019
1.7 years
September 29, 2017
November 26, 2019
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Difference in number of steps
The difference in steps per day between women that deliver preterm versus those that deliver at term will be analyzed.
Duration of pregnancy (< 9months)
Secondary Outcomes (10)
Average number of steps for those women who deliver prior to 37 weeks gestation
Duration of pregnancy (< 9months)
Average number of steps for those women who delivery prior to 34 weeks gestation
Duration of pregnancy (< 9months)
Change in steps per week
Duration of pregnancy (< 9months)
Number of triage visits
Duration of pregnancy (< 9months)
Number of inpatient hospitalizations
Duration of pregnancy (< 9months)
- +5 more secondary outcomes
Study Arms (2)
Preterm birth
Data collected using Fitbit activity tracker from women with delivery prior to 37 weeks gestation
Full-term birth
Data collected using Fitbit activity tracker from women with delivery after 37 weeks gestation
Interventions
Wearable device that records the number of steps a person takes throughout the day
Eligibility Criteria
Patients who are having their first baby, and have a low risk pregnancy
You may qualify if:
- Documented single viable intrauterine pregnancy at the time of enrollment
- Nulliparous women
- At least 18 years of age
- Access to a smartphone or computer
You may not qualify if:
- Known or suspected major congenital anomalies or aneuploidy
- Fetal demise
- Multiple gestation
- Known maternal medical complications (increasing patient risk for indicated (planned) preterm delivery:
- Pre-gestational diabetes White's Class D or worse
- Cancer (undergoing treatment)
- Current hyperthyroidism if not adequately controlled
- Renal disease with altered renal function (serum creatinine \> 1.5)
- Systemic lupus, scleroderma, polymyalgia rheumatica
- Active liver disease (acute hepatitis, chronic active hepatitis, persistently abnormal liver enzymes)
- Platelet or red blood cell disorder
- Chronic pulmonary disease (aside from asthma)
- Known HIV positive with viral load greater than 1,000 copies/ml or cluster of differentiation 4 (CD4) count less than 350/mm3
- Current or planned cerclage
- Planned delivery prior to 37 weeks
- +2 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Columbia University Medical Center
New York, New York, 10032, United States
Related Publications (1)
Booker WA, Ekpe EE, Handal-Orefice RC, Zhang Y, Cande A, Gyamfi-Bannerman C, Nieto V. Quantitative activity levels and gestational age at delivery: a prospective cohort study among nulliparous women. Am J Obstet Gynecol MFM. 2022 Jan;4(1):100503. doi: 10.1016/j.ajogmf.2021.100503. Epub 2021 Oct 17.
PMID: 34666197DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Cynthia Gyamfi, M.D.
Columbia University
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
September 29, 2017
First Posted
October 9, 2017
Study Start
October 24, 2017
Primary Completion
July 1, 2019
Study Completion
July 1, 2019
Last Updated
November 29, 2019
Record last verified: 2019-11
Data Sharing
- IPD Sharing
- Will not share