An Indigenous Birth Cohort
- to determine the major antenatal maternal factors (e.g. pre-pregnancy weight, weight gain, dietary intake, physical activity, and smoking exposure), selected paternal factors (e.g. cigarette smoking), and pregnancy factors (e.g. maternal weight gain, smoking exposure, glucose intolerance, and pregnancy-induced hypertension) which are associated with the newborn’s adiposity and cardio-metabolic factors at birth, and annually for the first three years of life;
- to determine the association between early feeding practices (i.e. exclusivity of breastfeeding, formula feeding, type, frequency and duration of breast/bottle feeding, and growth after weaning), sleep patterns and activity on newborn’s adiposity, and related cardio-metabolic factors annually for the first 3 years of life and;
- to determine the impact of the home environment, including socio-economic status, social support, and maternal psychosocial factors on newborn’s adiposity at birth and annually for the first three years of life.
- Start Year
- 2012
Visit ABC
| Investigators | Contacts |
|---|---|
|
Design
- Study design
- Cohort
- Follow Up
- After the baseline visit, participants were followed-up at birth, 6 weeks postpartum, 6 months postpartum and annually for 3 years after birth.
- Supplementary Information
Marker Paper
Wahi G., Wilson J., Miller R., Anglin R., McDonald Sarah., Morrison K.M.,Teo K., Anand S.S. Aboriginal birth cohort (ABC): a prospective cohort study of early life determinants of adiposity and associated risk factors among Aboriginal people in Canada. BMC Public Health 2013, 13: 608.
PUBMED 23800270
Recruitment
- Recruitment Target
-
- Families
Number of Participants
- Number of Participants
- 330
- Number of Participants with Biological Samples
- 300
- Supplementary Information
-
Mothers:150 participants
Children:150 participants
Grandmothers: 30 participants
Access
Availability of data and biosamples
| Possible Access to Data | |
| Possible Access to Biosamples | |
| Other |
Availability of access information
By contacting the study representative
Timeline
Populations
Selection Criteria
- Sex
-
Women
- Pregnant Women
-
- Second trimester
- Newborns
- Twins
- Countries
-
- Canada
- Territory
- Six Nations Reserve near Brantford
- Ethnic Origin
-
- Aboriginal
- Health Status
-
- Supplementary Information about selection criteria
- Women who conceived the fetus using artificial methods including in-vitro fertilization or intrauterine insemination, women carrying more than one fetus, surrogate mothers, women who suffer from severe chronic medical conditions including active cancer, severe infectious diseases including HIV, hepatitis B or C, or who are VDRL positive, were excluded.
Recruitment
- Sources of recruitment
-
- General population
- Specific population
- General Population
-
- Volunteer enrolment
- Specific Population
-
- Clinic patients
- Supplementary Information
-
Pregnant mothers were recruited through self referral, or referral to the study from local health care providers (midwives, nurses, primary care physicians, obstetricians).
Number of Participants
- Number of Participants
- 150
- Number of Participants with Biological Samples
- 150
Data Collection Events
| # | Name | Description | Start | End |
|---|---|---|---|---|
| 0 |
ABC - Mothers - Antenatal visit
|
Through a questionnaire, information on age, parity, medical and pregnancy history, cigarette smoking exposure of mother, father and family members, drugs and alcohol exposure, family ... |
2012 | 2018 |
| 1 |
ABC - Mothers - Birth visit
|
At the time of birth, details such as information about the type of delivery, duration of labour, premature labour, blood loss, adverse outcomes were collected. A cord blood sample was ... |
2012 | 2018 |
| 2 |
ABC - Mothers - 6 weeks check-up
|
Phone or email contact was made with the participant. Through a questionnaire, information on smoking habits, medications or supplements intake, sleep and work was collected. Adequacy of social ... |
2013 | 2019 |
| 3 |
ABC - Mothers - 6 months check-up
|
Phone or email contact was made with the participant. Socioeconomic status was assessed by recording annual household income, employment, education and marital status. Information was gathered ... |
2013 | 2019 |
| 4 |
ABC - Mothers - 1 year visit
|
During the face to face visit, demographics were collected, including age, health card number, address and family doctor information. Dietary information was collected through the use of the ... |
2013 | 2019 |
| 5 |
ABC - Mothers - 2 year visit
|
A one page case report form was completed by the mothers over the phone. |
2014 | 2020 |
| 6 |
ABC - Mothers - 3 year visit
|
During the face to face visit, demographics were collected, including age, health card number, address and family doctor information. Information about the mother's medical history was ... |
2015 | 2021 |
Selection Criteria
- Newborns
- Twins
- Countries
-
- Canada
- Territory
- Six Nations Reserve near Brantford
- Ethnic Origin
-
- Aboriginal
- Health Status
-
Recruitment
- Sources of recruitment
-
- Specific population
- Specific Population
-
- Other specific population : Children of the women already recruited in the study
Number of Participants
- Number of Participants
- 150
- Number of Participants with Biological Samples
- 150
Data Collection Events
| # | Name | Description | Start | End |
|---|---|---|---|---|
| 0 |
ABC - Children - Birth Visit
|
The newborns’ physical characteristics including birth weight, height, length, skinfold thickness, abdominal, head, and arm circumferences and blood pressure were measured within 72 hours after ... |
2012 | 2018 |
| 1 |
ABC - Children - 6 weeks check-up
|
Information on infant feeding practices was collected by interviewing the mother during a phone call. Information on initiation of breastfeeding, exclusivity of breastfeeding, duration of ... |
2012 | 2018 |
| 2 |
ABC - Children - 6 months check-up
|
Information on infant feeding practices was collected by interviewing the mother by email or telephone. A validated Infant Feeding Form was used to collect information about breastfeeding, ... |
2013 | 2019 |
| 3 |
ABC - Children - 1 year visit
|
Information on infant feeding practices was collected by interviewing the mother. Information on initiation of breastfeeding, exclusivity of breastfeeding, duration of breastfeeding, and ... |
2013 | 2019 |
| 4 |
ABC - Children - 2 year visit
|
A one page case report form was completed by the mothers over the phone. |
2014 | 2020 |
| 5 |
ABC - Children - 3 year visit
|
Information on child feeding practices was collected by interviewing the mother. Dietary information was collected through the use of the Interheart Diet Questionnaire and two diet recalls. ... |
2015 | 2021 |
Selection Criteria
- Sex
-
Women
- Newborns
- Twins
- Countries
-
- Canada
- Territory
- Six Nations Reserve near Brantford
- Ethnic Origin
-
- Aboriginal
- Health Status
-
- Other Criteria
- Supplementary Information about selection criteria
Recruitment
- Sources of recruitment
-
- Specific population
- Specific Population
-
- Other specific population : Mothers of participating pregnant mothers
Number of Participants
- Number of Participants
- 30
- Number of Participants with Biological Samples
- Supplementary Information about selection criteria
Data Collection Event
Using a semi-structured qualitative interview, information was collected about grandmothers' beliefs regarding optimal health behaviours for a woman before pregnancy, during pregnancy, the first 6 weeks postpartum, and optimal behaviours for the family with the new baby in the first year of life. Questions probed their beliefs about diet and feeding practices, sleep, activity, smoking, alcohol, social support, mental health, and intimate partner relationships.
- Start Date
-
2012
- End Date
-
2021
- Data sources
-
- Questionnaires
Classifications
- Socio-demographic and economic characteristics
- Lifestyle and behaviours
- Birth, pregnancy and reproductive health history
- Perception of health, quality of life, development and functional limitations
- Diseases
- Symptoms and signs
- Medication and supplements
- Non-pharmacological interventions
- Health and community care services utilization
- Death
- Physical measures and assessments
- Laboratory measures
- Cognition, personality and psychological measures and assessments
- Life events, life plans, beliefs and values
- Preschool, school and work life
- Social environment and relationships
- Physical environment
- Administrative information
- Cognitive functioning
- Personality
- Psychological distress and emotions
- Other psychological measures and assessments
- Life events
- Beliefs and values
- Perception of health
- Quality of life
- Life course development
- Functional limitations
- Other perception of health, quality of life and functional limitation-related information
- Tobacco
- Alcohol
- Drugs
- Nutrition
- Breastfeeding
- Physical activity
- Sleep
- Sexual behaviours and orientation
- Technological devices
- Misbehaviour and criminality
- Other and unspecified lifestyle information
Socio-demographic and economic characteristics
Lifestyle and behaviours
Birth, pregnancy and reproductive health history
Perception of health, quality of life, development and functional limitations
Diseases
Symptoms and signs
Medication and supplements
Non-pharmacological interventions
Health and community care services utilization
Physical measures and assessments
Laboratory measures
Cognition, personality and psychological measures and assessments
Life events, life plans, beliefs and values
Preschool, school and work life
Social environment and relationships
Physical environment
Administrative information
Psychological distress and emotions
Life events
Beliefs and values
Life course development
Nutrition
Sleep