Canadian Population Serological Survey Utilizing Antenatal Serum Samples
Networks
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Datasets
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Variables
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The objectives of the Canadian Population Serological Survey Utilizing Antenatal Serum Samples are to:
* Provide an immediate cross-sectional assessment of the seroprevalence of antibodies to SARS-CoV-2 in Canada.
* Assess the retrospective evolution of SARS-CoV-2 prevalence; antenatal serology can be assessed going back one year thereby providing an opportunity to go back to where 0% prevalence is detected.
* Plan to perform periodic future seroprevalence based on the level of seroprevalence on the first cross-sectional assessment.
* Compare seroprevalence between Canadian provinces and territories.
- Start Year
- 2020
- End Year
- 2021
Visit CPSS-Antenatal
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Design
- Study design
- Cross-sectional
- Follow Up
- Periodic assessment of seroprevalence of SARS-CoV-2 utilizing clinically collected prenatal serology samples may be planned for future time points. The frequency and number of samples will be determined based on findings from the first cross-sectional assessment.
Recruitment
- Recruitment Target
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- Individuals
Number of Participants
- Number of Participants
- 18,000
- Number of Participants with Biological Samples
- Supplementary Information
- Cohort 1: 18,000 participants
Access
Availability of data and biosamples
| Possible Access to Data | |
| Possible Access to Biosamples | |
| Other |
Timeline
Populations
The population is composed of pregnant women in all provinces and territories of Canada who have their prenatal serology results available in laboratories.
Selection Criteria
- Sex
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Women
- Pregnant Women
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- First trimester
- Newborns
- Twins
- Countries
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- Canada
- Territory
- Ethnic Origin
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- Health Status
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- Other Criteria
- Had a routine blood screening of the antibody status to rubella, HIV, Hepatits B and syphilis
Recruitment
- Sources of recruitment
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- Specific population
- Specific Population
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- Clinic patients
- Supplementary Information
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Pregnant women who get a routine blood screening for prenatal care and who have their serological test results available for testing.
Number of Participants
- Number of Participants
- 18,000
- Number of Participants with Biological Samples
- 18,000
- Supplementary Information about selection criteria
Data Collection Event
Collected blood samples for prenatal serological survey were sequestered in November to December 2020 and tested for detection of SARS-CoV-2 from December 2020 to March 2021.
Information on age, geocode, date and type of specimen, type of assay(s) used and titer result were obtained from administrative databases and linked to serosamples.
- Start Date
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2020-11
- End Date
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2021-03
- Data sources
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- Biosamples
- Administrative databases
- Data sources - Biosamples
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- Blood
- Data sources - Administrative databases
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- Health databases
- Vital statistics databases
The population is composed of pregnant women in all provinces and territories of Canada who have their antenatal screening for aneuploidy results available in laboratories.
Selection Criteria
- Sex
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Women
- Pregnant Women
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- First trimester
- Second trimester
- Newborns
- Twins
- Countries
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- Canada
- Territory
- Ethnic Origin
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- Health Status
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- Other Criteria
- Had an aneuploidy blood screening
Recruitment
- Sources of recruitment
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- Specific population
- Specific Population
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- Clinic patients
- Supplementary Information
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Pregnant women who get a routine blood screening for prenatal care and who have their aneuploidy test results data available for testing.
Number of Participants
- Number of Participants
- Number of Participants with Biological Samples
Data Collection Event
A retrospective assessment of seroprevalence using blood samples from aneuploidy blood test, drawn and kept for one year, was performed.
Information on age, geocode, date and type of specimen, type of assay(s) used and titer result were obtained from administrative databases and linked to serosamples.
- Start Date
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2019-12
- End Date
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2020-12
- Data sources
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- Biosamples
- Administrative databases
- Data sources - Biosamples
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- Blood
- Data sources - Administrative databases
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- Health databases
- Vital statistics databases
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
Socio-demographic and economic characteristics
Age/birthdate
Residence
Birth, pregnancy and reproductive health history
Pregnancy, delivery and birth
Laboratory measures
Immunology
Administrative information
Date and time-related information
Physical and cognitive measure and biosample-related information