Determinants of Gestational Weight Gain in Obese Pregnant Women

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

72 participants

Study Classification

OBSERVATIONAL

Study Start Date

2014-12-31

Study Completion Date

2018-08-31

Brief Summary

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The purpose of this study is to measure energy intake and energy expenditure during and after pregnancy. The investigators hypothesize that obese pregnant women with weight gain above the Institute of Medicine (IOM) guidelines, 'High Gainers', will have increased energy intake but no evidence for changes in energy expenditure after adjustment for the weight gained when compared to women with appropriate gestational weight gain, 'Normal Gainers'. Additionally, the investigators will measure the babies born to the pregnant women enrolled in MomEE at one time point before 10 days of life.

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Detailed Description

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Conditions

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Energy Intake Energy Expenditure

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Pregnant

Obese pregnant women

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* Are pregnant
* Have a body mass index (BMI) greater than or equal to 30kg/m2
* Are 18-40 years old
* Medically cleared for participation by primary care obstetrician
* Medically cleared for participant by Medical Investigator
* Willingness to allow the study access to information in the participant's medical record
* Willingness to be notified of incidental findings from study procedures

Exclusion Criteria

Clinical

* Hypertension (i.e. systolic blood pressure (SBP) \>160 mmHg \& diastolic blood pressure (DBP) \>110 mmHg)\*
* Diagnosis of diabetes prior to pregnancy
* Hb A1c ≥6.5 %\*
* Implanted metal objects that render MRI unsafe
* HIV or AIDS (self-reported)
* Severe anemia (hemoglobin \<8g/dL and/or hematocrit \<24%)\*\* Psychological
* History or current psychotic disorder or diagnosis of a current major depressive episode or bipolar disorder
* Past history of anorexia or bulimia by medical history or patient report (binge eating disorder is not an exclusion) or current eating disorder
* Actively suicidal defined as a value ≥2 on the Beck Depression Index (BDI-II) question 9\* Medications
* Current use of one or more of the following medications: metformin, systemic steroids, antipsychotic agents (e.g., Abilify, Haldol, Risperdal, Seroquel, Zyprexa), anti-seizure medications or mood stabilizers that would be expected to have a significant impact on body weight (e.g., Depakote, Lamictal, Lithium, Neurontin, Tegretol, Topamax, Keppra), medications for attention-deficit/hyperactivity disorder (ADHD) including amphetamines and methylphenidate
* Recent history of or currently smoking, drinking alcohol or abusing drugs (prescription or recreational)
* Plans to move out of the study area within the next 2 years or plans to be out of the study area for more than 4 weeks in the next 12 months
* Planned termination of pregnancy
* Unwillingness to avoid pregnancy for 12 months following delivery
* Claustrophobia
* Prior or planned (within 1 year of expected delivery) bariatric surgery
* Participant's unwillingness or inability to commit to a 1 year follow-up

Minimum Eligible Age

18 Years

Maximum Eligible Age

40 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes