Trends in Live Birth Rates Attributable to Assisted Reproductive Technology in British Columbia

Investigators will examine trends in ART use in BC specifically. The use of ART has drastically changed the management of infertility, with worldwide estimates exceeding 1.8 million ART cycles in 2010 alone. Moreover, an excess of six million children have been conceived using ART. Although various countries have published their live birth rates associated with common ART treatment strategies, British Columbia has yet report on its rates. With varying differences in ART practices, whether clinical or laboratory, it is expected live birth rates due to ART to vary depending on region analyzed. Analyzing the live birth rate in BC would not only allow for a benchmark for assessing future improvement, and trends in infertility diagnosis and management, but also allow for comparison to other provinces and countries. The aim of this part of the study is to describe ART cycle contribution to live birth rate in BC from April 2008 to March 2018, which has not been addressed in the literature as of yet. Not only will it give healthcare providers and patients information about this emerging approach to infertility but also provide a impetus for healthy policy makers to adopt a model for partially or fully publicly funded ART, as seen in Ontario and soon Quebec.

Study Overview

• Status: Completed
• Conditions: Assisted Reproductive Techniques
• Intervention / Treatment: Procedure: Assisted Reproductive Technology

Detailed Description

Perinatal Services BC maintains a current database on live births, antepartum, intrapartum and postpartum outcomes; including details of ART if used to conceive. Live birth rate, for the purposes of this study, will be defined as the birth of at least one live born baby, with the birth of twins or higher order multiples considered as one live birth. The birth rate for ART will be taken as a proportion for birth rate from ART over total birth rate for given calendar year and the overall period of analysis. Data from April 1 2008 to March 31 2018 on autologous ART treatment cycles and outcomes will be extracted from this database, with approval. Overall proportion of ART contributing to live birth rate will be analyzed as well as sub categorical analysis based on age (younger than 30, 30-34 years, 35-39 years, 40-44 years, and 45 years and older). Only nulliparous women will be included in this study.

Moreover, data will be analyzed by calendar year in which baby from ART delivered to evaluate overall trends in ART outcomes. The total live birth rate for all of BC will serve as the denominator.

Although the data will be reviewed and rules interpreted by the principal investigator of this study, a biostatistician will be hired to carry out the necessary statistical analysis.

• Study Type: Observational
• Enrollment (Actual): 1000

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child; Adult; Older Adult
• Accepts Healthy Volunteers: No

• Sampling Method: Non-Probability Sample

Study Population

All women registered in Perinatal Services BC database with live births between April 2008 and March 2018.

Description

Inclusion Criteria:

• Nulliparous women registered in Perinatal Services BC database with live birth between April 2008 and March 2018

Exclusion Criteria:

• multiparous women
• women with missing data in Perinatal Services BC database including gravid, parity, age, date of birth

Study Plan

How is the study designed?

Design Details

• Observational Models: Cohort
• Time Perspectives: Other

Number of groups / cohorts

2

Cohorts and Interventions

Group / Cohort	Intervention / Treatment
Women in BC conceiving by ART; All women in BC registered in the Perinatal Services BC database having undergone Assisted Reproductive Technology. Assisted Reproductive Technology will consist of in vitro fertilization (+/-ICSI). Data from April 1, 2008 to March 31 2018 will be analyzed for live birth rate.	Procedure: Assisted Reproductive Technology; Assisted reproductive technology includes IVF and IVF+ICSI.
Women in BC conceiving spontaneously; he comparison group will be all women in BC registered in the Perinatal Services BC database with spontaneously conceived pregnancies between April 1, 2008 to March 31 2018.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Live birth rate	Live birth rate	Date of delivery

Collaborators and Investigators

• Sponsor: University of British Columbia
• Investigators: Principal Investigator: Mohamed Bedaiwy, MD, PhD, University of British Columbia

Study record dates

Study Major Dates

• Study Start (Actual): April 1, 2008
• Primary Completion (Actual): March 1, 2018
• Study Completion (Actual): March 1, 2018

Study Registration Dates

• First Submitted: April 29, 2020
• First Submitted That Met QC Criteria: April 29, 2020
• First Posted (Actual): May 4, 2020

Study Record Updates

• Last Update Posted (Actual): December 13, 2024
• Last Update Submitted That Met QC Criteria: December 9, 2024
• Last Verified: April 1, 2020

More Information

Terms related to this study

• Other Study ID Numbers: H20-00461-B

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: No