Incidence of twins in families of IVF-patients.

Incidence of twins in families of IVF-patients. - Twins in families of IVF-patients.

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

NL-OMON

Registry ID

NL-OMON30264

Enrollment

1593

Registered

2006-12-13

Start date

2006-09-14

Completion date

Unknown

Last updated

2024-05-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

familaire aanleg voor zwanger worden van tweelingen multiple pregnancy twin

Interventions

None listed

Eligibility

Age

18 Years to 99 Years

Inclusion criteria

Inclusion criteria: - *Fresh* IVF/ICSI- treatment between January 1, 2000 and December 31, 2004. - Double embryo transfer (DET) on day 3 after oocyte retrieval. - Positive serum pregnancy test on day 14-16 after oocyte retrieval. - Presence of one or more intra uterine gestational sac(s) on ultrasound at 6 weeks of gestation. - Only one treatment cycle per patient, if patients had more cycles resulting in pregnancy within the study period, only the first cycle will be included.

Exclusion criteria

Exclusion criteria: - Pregnancies after cryo preservation. - Ectopic pregnancies.

Design outcomes

Primary

Measure	Time frame
Incidence of twins in the families of IVF patients.	—

Secondary

Measure	Time frame
Course of pregnancy and delivery, information on the child(ren) born from this pregnancy, information on the patient/ mother of the child(ren).	—

Countries

Netherlands

Outcome results