The Ontario Birth Study (OBS) is a research platform developed by the Lunenfeld-Tanenbaum Research Institute (LTRI) and Sinai Health System (SHS). Core study material includes self-administered questionnaire data and pregnancy-related clinical and outcome data housed on a database managed by the Applied Health Research Centre (AHRC) of St. Michael's Hospital (collectively, the "Database") as well as biospecimens including blood samples and vaginal swabs which are stored at the  LTRI Biospecimen Repository (the "Biobank").


Procedures for Access


All new research proposals which seek to access data from the Database ("OBS Data") and/or samples from the Biobank ("OBS Samples") shall require approval from the OBS Steering Committee (the "Committee") before the study is commenced.


Researchers will complete the Data Access Application Form (the "Application Form"), attached hereto, that will be e-submitted to the OBS Steering Committee for review. This process will allow the Committee to assess the viability of the project and the availability of existing OBS Data and/or OBS Samples to fulfill the project objectives. The Application Form also allows the Committee to identify any potential overlap with currently approved projects, and proposed studies. The Committee may offer suggestions for combining substantially similar proposals. Data Access Applications will be prioritized based on scientific merit if multiple requests are received at the same time.


The OBS Steering Committee will review Application Forms and supporting documentation and will endeavor to provide a response within 30 days of submission of the Application Form. Approved projects requiring renewal for extended access of OBS Data will require completion and submission of the form generated upon selection of "Modify Request" from the options provided below. Prior approval does not guarantee extended access, as each modification must be reviewed by the OBS Steering Committee. 


Both internal (i.e. from within SHS) and external applications to access the Database and Biobank will be treated in the same manner, using the steps and guidelines outlined in this OBS Application Procedure.


Grant Applications


If OBS Steering Committee approval is required for a grant application, the applicant should plan accordingly and allow adequate time to seek Committee approval in advance of the grant application deadline. Furthermore, if funding is required to complete the proposed study, applicants may want to delay applications for funding until a recommendation for approval or non-approval of the proposed study is received from the OBS Steering Committee.



REB Applications


Once the required funding is received, the applicant should then apply to their local Research Ethics Board (REB) and the SHS REB for approval of the proposed study. Once both REB approval letters are received by the investigator, copies must be forwarded to the OBS Data Coordinator to complete the Data Access Application Form. Investigators will only be provided with data and/or specimens in accordance with the REB application which should be outlined in the Data Access Application Form. Investigators may only contact OBS Subjects for the purpose described in the Data Access Application Form and in accordance with the terms of the OBS Steering Committee approval as applicable.



  • Refusal: In the case of a refusal or incompleteness, the applicant will be so notified. Any refusal will be accompanied by reasons for the refusal and resubmission will be permitted unless otherwise specified.
  • Approval: In the case of an approval, the Committee will notify the applicant of the approval, provide an approval number and project ID. A research agreement such as a Data/Material Transfer Agreement (DTA, MTA, or DMTA), or another appropriate legal instrument will be issued for all Data/Samples approved for transfer to another institution. This agreement will be negotiated between SHS and the approved researcher's institution prior to execution
  • Renewal: will be approved or refused on a case-by-case basis. Renewal outcome will be delivered in writing to the inquiring researchers.

Ancillary Studies

Ancillary Studies are studies that are proposed to the OBS Steering Committee that intend to use the same subject pool that has consented to participate in the OBS ("Ancilliary Studies" and "OBS Subjects", respectively). Since many OBS Subjects have consented to be approached for future studies in their executed informed consent forms, applicants may submit a Data Access Application Form to seek approval for the collection of additional information from OBS Subjects through questionnaires, physical measures, or environmental or biological samples. All studies wishing to contact OBS subjects to determine their interest in the Ancillary Study must have a designated SHS/LTRI  principal investigator. Upon approval of applications for Ancillary Studies, the OBS Recruitment Personnel will contact OBS Subjects to determine their interest in potentially participating in the Ancillary Study and to gain OBS Subject's permission to share her contact information with the approved investigator. At no time will OBS Subject personal contact information be transferred directly to the approved researcher without explicit approval from the OBS Subject to do so.

Applicants proposing Ancillary Studies that require additional OBS Subject participation will provide the OBS with all relevant study materials and tools. These can include data collection instruments (e.g. questionnaires, medical record abstraction forms) and/or a description of the additional measurements or samples that will be collected, as well as a letter of informed consent developed for the Ancillary Study. The consent form for the Ancillary Study must clearly stipulate that it is ancillary to the OBS and that OBS Subject participation in the Ancillary Study is not required for continued participation in the OBS.

Investigators will have exclusive access to the data that they have collected under an approved study for an agreed period of time following data collection. This time period for exclusive access will be determined by the OBS Steering Committee following approval of the Study and shall be defined clearly in the terms of the legal instrument that will be executed following approval. Once this period of exclusive access to study data has elapsed, the new data collected as part of the Ancillary Study, as well as any derived data or test results, shall become part of the OBS database. Regardless of whether said study has been published, the study data will be available to other investigators for inclusion in future studies.


There are two situations where resubmission is possible. Firstly, when the OBS Steering Committee decides that the submitted application is incomplete, the applicant will be allowed to resubmit his/her Data Access Application Form with the necessary information/documentation/approvals. Secondly, resubmission is possible after the OBS Steering Committee has refused approval of the Data Access Application Form submitted. The applicant will be permitted to submit a revised Data Access Application Form, which should address the comments relayed by the OBS Steering Committee.



Responsibilities of the Applicant


  1. Researchers are required to confirm that their research proposal has appropriate REB approval. The OBS will have copies of all current REB approvals, REB approved consents (if applicable), REB applications, and REB-approved data collection forms.

  2. The approved applicant shall agree to store, manage and use OBS Data in strict confidentiality. In doing so, all reasonable efforts to maintain the security and confidentiality of the accessed OBS Data, including any copies thereof, are to be employed. The applicant may not disclose, transmit or transfer any OBS Data or Samples to unauthorized individuals. The applicant shall retain control of the transferred data at all times, as delineated in the duly executed data transfer agreement, or another appropriate legal instrument.

  3. The applicant will reimburse the OBS for access according to the standard fee schedule, within 30 days of Data/Sample receipt.

  4. The applicant will ensure that both the REB of record for the study as well as the OBS Steering Committee are notified of any change in personnel, protocol or physical location of the OBS Data or Samples to ensure ongoing approval of the study.

  5. The applicant must ensure that all research staff and information technology (IT) staff with access to OBS Data or Samples are made aware of their responsibilities and have agreed to the terms of the executed data transfer agreement, or another appropriate legal instrument. Applicants must immediately notify the Steering Committee of any change in the list of researchers using OBS Data. The OBS Steering Committee must be notified of a change in the applicant's status (e.g., institutional affiliation) so that legal agreements are amended accordingly.

  6. The applicant must submit information annually regarding progress, when requested.

  7. Once an approved research project has ended, applicants must submit a Final Project Report to the OBS Steering Committee. This Report requires a summary of the research findings as well as any applicable comments and suggestions to improve OBS's access procedures.

  8. An Unanticipated Event/Significant Change Report must be completed and submitted to the OBS Steering Committee if unanticipated events and/or significant changes occur during an approved research project that may have an impact on the study data, that impact the ability of the applicant to achieve the research goals, or that represents a significant change to the information initially provided in the Data Access Application Form, the OBS Steering Committee must be notified.

  9. The objective of the OBS is to maximize public benefit from data collected by the OBS and its collaborators. Accordingly, data generated through OBS will remain widely available and, to the greatest extent possible, unencumbered by additional intellectual property constraints of approved researchers. Therefore, applicants and their host institution agree not to make intellectual property claim's on OBS's primary data. Ancillary Data will be added to the Database and become available to other researchers in the future.

  10. Applicants are strongly encouraged to publish their research results so as to benefit both the scientific community and the general population. All manuscripts are to be sent to the OBS Steering Committee 30 days prior to submission for publication. Papers will be reviewed by the OBS Steering Committee to confirm appropriate description of the OBS and acknowledgements.

  11. There is an agreed standard acknowledgements section to be included in all manuscripts and publications (see below). The relevant acknowledgements should be included as is or can be modified if there are specific journal requirements.
  12. A plan for archiving or destruction of data shared with the Approved Investigator must be submitted to the OBS Steering Committee and this will be specified in the Data Access Agreement and/or Material Transfer Agreement. Any biological sample that remains after analyses are complete is to be returned to the OBS.


Responsibilities of the OBS Steering Committee:

  1. The data collected or generated by OBS will be made available to public and private institutions that conduct scientific research.

  2. The OBS will review applications and manuscripts in a timely manner.

  3. The OBS will provide the requested OBS Data (including contact information from consenting OBS Subjects for Ancillary Studies) and OBS Samples for approved projects following approval by the OBS Steering Committee and REB approval and receipt of the relevant signed data transfer agreements.

  4. Approved researchers will be given access to OBS Data for a specified period of time, and the expectation is that the research will be completed within that period of time. It is possible to obtain subsequent renewals from the Committee, pending submission, review and approval of a renewal application.
  5. Multiple requests for OBS Data for overlapping initiatives may be approved by the OBS Steering Committee after discussion. The Committee may offer suggestions for combining substantially similar proposals and will prioritize Data Access Applications on scientific merit if multiple requests are received at the same time.

  6. A lay summary of approved projects (provided by the applicant) along with information on the study investigators will be added to the publicly available OBS website.


Required Acknowledgement Information

The authors acknowledge the contribution and support of Ontario Birth Study Team members and the participants. We are extremely grateful to all the women who took part in this study and the whole research team. Funding for the Ontario Birth Study has been provided by Mount Sinai Hospital Foundation and Lunenfeld-Tanenbaum Research Institute.

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