Does an Educational Video for Aneuploidy Screening Improve Informed Choice Among Pregnant Women? (EVA)

National University Health System (NUHS)

Status: Active, not recruiting

Conditions: Aneuploidy; Down Syndrome; Pregnancy Early

Treatments: Behavioral: Enhanced (intervention) education

Study type: Interventional

Funder types: Other

Identifiers

NCT05492981

2020/01123

Details and patient eligibility

About

Informed decision-making regarding aneuploidy screening has been reported to be low. Poor knowledge and the lack of deliberation have been cited as reasons for uninformed choices, highlighting the need for adequate pre-test counselling. We conducted a study to assess if an educational video improves informed choice in a clinical setting where both the combined first trimester screen and non-invasive prenatal screening are offered routinely to pregnant women.

Full description

Women attending the antenatal clinic with a viable singleton pregnancy below 14 weeks were randomized to receive routine counselling by their obstetrician or the intervention, where they watched a 16-minute educational video on aneuploidy screening before their consult. The primary outcome, rate of informed choice, was assessed using an adapted multidimensional measure of informed choice (MMIC) questionnaire, where informed choice was defined as good knowledge and value-consistent behaviour. Secondary outcomes included informed choice with deliberation, decisional conflict and anxiety.

Enrollment: 286 patients

Sex: Female

Ages: 21 to 50 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• aged 21 years or older
• English speaking
• had a viable singleton pregnancy below 14 weeks gestation

Exclusion criteria

• women who had any prior discussion with a clinician regarding aneuploidy screening for their current pregnancy

Trial design

Primary purpose: Screening

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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286 participants in 2 patient groups

Intervention

Experimental group

Description:

The intervention was a 16-minute educational video created by the study investigators which provided information about Down syndrome, diagnostic tests and screening tests. The screening tests covered in the video included the triple test, the combined first trimester screen and non-invasive prenatal screening. Information about how and when each of the tests were performed, their detection rates and possible results and their interpretations were covered in the video. The video was viewed by several healthcare providers and experts in the field of prenatal screening before the commencement of this study to ensure that the content was appropriate and adequate. The intervention was viewed by subjects on a portable tablet in a quiet room in the antenatal clinic. Subjects were then invited to ask their doctor any questions that they may have had about the video during the clinic consult which followed.

Treatment:

Behavioral: Enhanced (intervention) education

Control

No Intervention group

Description:

Women in the control group were counselled by the referring doctor regarding the aneuploidy screening options of FTS or NIPS, and provided information about the procedures involved for each test, their detection rates, cost, and possible results of testing. The use of a written information leaflet was available to doctors as an adjunct to providing this information.