NCT04532502

Brief Summary

The aims of this multi center retrospective study was to determine:

  • whether the sex ratio of the offspring of female assistants in anesthesia-resuscitation differs from that of the population at large
  • whether the assistants' work environment at the time of their offspring's conception influences the sex of their offspring

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
143

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Oct 2021

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 25, 2020

Completed
6 days until next milestone

First Posted

Study publicly available on registry

August 31, 2020

Completed
1.1 years until next milestone

Study Start

First participant enrolled

October 2, 2021

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 2, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 2, 2021

Completed
Last Updated

December 3, 2021

Status Verified

December 1, 2021

Enrollment Period

2 months

First QC Date

August 25, 2020

Last Update Submit

December 2, 2021

Conditions

Keywords

Anesthesia care providersoffspring sex ratioInhalation induction of anesthesia

Outcome Measures

Primary Outcomes (1)

  • Offspring sex ratio

    Offspring sex ratio of female anesthesia assistants will be recorded

    5 years (duration of anesthesia training)

Study Arms (1)

Study group

All female assistants in anesthesia

Drug: Anesthetics, Inhalation

Interventions

Work environmental exposure

Study group

Eligibility Criteria

Age18 Years+
Sexfemale
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The anesthesia department of the three French-speaking universities in Belgium wimp e-mail a questionnaire to all female assistants in anesthesia-resuscitation via a system similar to Survey Monkey. The data will be completely anonymized through those of such a system. Reminder will be e-mailed 1 and 3 months after the questionnaire is sent out. Filling the questionnaire will be equated with consent

You may qualify if:

  • Female assistants in anesthesia-resuscitation in the Wallonia-Brussels Federation (Belgium) who conceived one or more children in the course of their training between 2009 and 2019 and who delivered before the end of 2019 (cut-off: midnight on 31 December 2019)

You may not qualify if:

  • Male assistants in anesthesia-resuscitation
  • Female assistants in anesthesia-resuscitation who trained before 2009 or after 2019.
  • Female assistants in anesthesia-resuscitation who relied on medically assisted reproduction.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

ULiege

Liège, 4000, Belgium

Location

Related Publications (2)

  • Gupta D, Kaminski E, McKelvey G, Wang H. Firstborn offspring sex ratio is skewed towards female offspring in anesthesia care providers: A questionnaire-based nationwide study from United States. J Anaesthesiol Clin Pharmacol. 2013 Apr;29(2):221-7. doi: 10.4103/0970-9185.111728.

    PMID: 23878446BACKGROUND
  • Leroy C, Daelemans C, Debauche C, Van Leeuw V. Santé périnatale en Wallonie - année 2017, Centre d'Epidémiologie Périnatale 2019.

    BACKGROUND

MeSH Terms

Interventions

Anesthetics, Inhalation

Intervention Hierarchy (Ancestors)

Anesthetics, GeneralAnestheticsCentral Nervous System DepressantsPhysiological Effects of DrugsPharmacologic ActionsChemical Actions and UsesCentral Nervous System AgentsTherapeutic Uses

Study Officials

  • Philippe J Van der Linden, MD

    CHU Brugmann, Free University of Brussels, Belgium

    STUDY DIRECTOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

August 25, 2020

First Posted

August 31, 2020

Study Start

October 2, 2021

Primary Completion

December 2, 2021

Study Completion

December 2, 2021

Last Updated

December 3, 2021

Record last verified: 2021-12

Locations