Overweight and Obesity, Pregnancy Outcomes, Weight Stigma
Conditions
Keywords
Prenatal care, Healthcare
Brief summary
The goal of this prospective cohort study is to investigate the contribution of stigma and discrimination due to body size to adverse pregnancy outcomes. We also aim to explore the role of psychological and social factors in this relationship. The specific objectives of this study are: Objective 1: Explore weight stigma as a mediator of the association between BMI ≥30 kg/m2 and adverse pregnancy outcomes. Objective 2: Explore confounding factors not previously considered such as weight cycling, trauma, eating disorders, and internalised weight bias as mediators in the relationship between obesity and adverse pregnancy outcomes.
Detailed description
The specific research questions for each objective are: Objective 1 RQ1.1: Does weight stigma experienced during pregnancy in a healthcare setting reported up to 34 weeks gestation mediate the association between pre-pregnancy obesity (BMI ≥30) and gestational diabetes mellitis (GDM) (primary outcome)? RQ1.2: Does weight stigma experienced during pregnancy in a healthcare setting reported up to 34 weeks gestation mediate the association between pre-pregnancy obesity (BMI ≥30) and (i) induction of labour; (iv) mode of birth; (ii) gestational hypertension (any); (iii) infant birth weight; and (iv) establishment of breastfeeding by 6 weeks postpartum (secondary outcomes)? Objective 2: RQ2.1: Do weight cycling, history of trauma, history of eating disorders, and internalised weight bias explain any of the variance in the mediation relationships described above?
Interventions
None listed
Sponsors
Monash University
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Pregnant between 10-22 weeks' gestation * Greater or equal than 18 years of age * Booked to give birth at Adelaide Women's and Children's Hospital or Royal Women's and Children's Brisbane * Access to the Internet to complete the survey * Consents to the extraction of hospital electronic medical record data about the woman and relevant to the study. * Ability to read and understand English
Exclusion criteria
* Pregnant with multiple gestation * Insufficient English language skills to consent and complete the questionnaires.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Proportion of women diagnosed with gestational diabetes mellitis by 34 weeks gestation | 34 weeks | Measuring the number of women reporting a diagnosis of gestational diabetes mellitis by 34 weeks gestation as assessed via self-reported measures and chart review. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Proportion of women experiencing induction of labour | 6 weeks postpartum | Identifying whether the woman's labour was spontaneous or induced measured via a self-reported questionnaire. |
| Proportion of women reporting each mode of birth (i.e., vaginal birth, caesarean section, assisted vaginal birth, or other) | 6 weeks postpartum | Identifying the mode of birth assessed via a self-reported questionnaire. Options are: vaginal birth, caesarean section, assisted vaginal birth (e.g., with forceps), or other. |
| Proportion of women who reported experiencing gestational hypertension in their most recent pregnancy | 6 weeks postpartum | Identifying the proportion of women who reported a diagnosis of gestational hypertension during their most recent pregnancy via a self-reported questionnaire. |
| Infant birth weight (in grams) reported by mothers for their most recent infant | 6 weeks postpartum | Infant birth weight (in grams) reported by mothers based on their most recent baby's birth certificate or hospital discharge summary information. |
| Proportion of women currently breastfeeding their infant reported by mothers at 6-weeks postpartum | 6 weeks postpartum | The proportion of women currently breastfeeding their infant (yes/no) reported by mothers at 6-weeks postpartum |
Contacts
CONTACTBriony Hill, PhD
CONTACTMegan Mitchell, PhD
PRINCIPAL_INVESTIGATORBriony Hill, PhD
Monash University
Outcome results
None listed