Vitamin D Status Among Infertile Women in Sweden
Vitamin D Status, Its Determinants and IVF Outcomes Among Infertile Women in South-Western Sweden.
1 other identifier
observational
265
1 country
1
Brief Summary
The goal of this prospective cohort study is to learn about the overall and seasonal prevalence of vitamin D insufficiency and its determinants in a population of women with infertility who will go through in vitro fertilization in Sweden. The main questions it aims to answer are:
- What is the prevalence of vitamin D insufficiency?
- What are the determinants of this insufficiency? Participants will be asked to complete a questionnaire validated for dietary assessment of vitamin D intake and sun exposure habits and they will leave a blood sample for measurement of 25(OH)D concentration. Researchers will compare the in vitro fertilization outcomes between women with vitamin D insufficiency and sufficiency to see if there is any difference.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Sep 2020
Shorter than P25 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
September 1, 2020
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 30, 2021
CompletedStudy Completion
Last participant's last visit for all outcomes
August 30, 2021
CompletedFirst Submitted
Initial submission to the registry
April 27, 2023
CompletedFirst Posted
Study publicly available on registry
May 8, 2023
CompletedMay 8, 2023
April 1, 2023
12 months
April 27, 2023
April 27, 2023
Conditions
Outcome Measures
Primary Outcomes (2)
Prevalence of vitamin D insufficiency
Overall and seasonal prevalence of vitamin D insufficiency
September 2020 - August 2021
Determinants of vitamin D insufficiency
Determinants (dietary, sun exposure habits) of vitamin D insufficiency
September 2020 - August 2021
Secondary Outcomes (1)
In vitro fertilization outcomes
September 2020 - August 2021
Eligibility Criteria
Women aged 18-38 who will go through in vitro fertilization during 2020-2021 (one year) for infertility at the Department of Obstetrics and Gynecology, Sahlgrenska University Hospital in Gothenburg, Sweden.
You may qualify if:
- women aged 18-38 years, who will go through in vitro fertilization for infertility.
You may not qualify if:
- women who will go through pre-implantation genetic testing
- women who will go through sperm- or oocyte donation treatment
- Fertility preservation cycles
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Department of Obstetrics and Gynecology, Sahlgrenska University Hospital
Gothenburg, 24, Sweden
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER GOV
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Senior Consultant, M.D., Ph.D.
Study Record Dates
First Submitted
April 27, 2023
First Posted
May 8, 2023
Study Start
September 1, 2020
Primary Completion
August 30, 2021
Study Completion
August 30, 2021
Last Updated
May 8, 2023
Record last verified: 2023-04
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF
All IPD that underlie results in a publication will be made available on reasonable request.