Long-run Effects of the Dutch Nurse-Family Partnership using Administrative Data

Last registered on December 06, 2023
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Pre-Trial

Trial Information

General Information

Title
Long-run Effects of the Dutch Nurse-Family Partnership using Administrative Data
RCT ID
AEARCTR-0011091
Initial registration date
December 04, 2023

Initial registration date is when the trial was registered.

It corresponds to when the registration was submitted to the Registry to be reviewed for publication.

First published
December 06, 2023, 8:56 AM EST

First published corresponds to when the trial was first made public on the Registry after being reviewed.

Locations

Country
Netherlands
Region

Primary Investigator

Name
Ilse van der Voort
Affiliation
Tinbergen Institute, Erasmus Centre for Health Economics Rotterdam, Erasmus School of Economics
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Other Primary Investigator(s)

PI Name
Tom Van Ourti
PI Affiliation
Tinbergen Institute, Erasmus Centre for Health Economics Rotterdam, Erasmus School of Economics, Erasmus School of Health Policy and Management
Contact Investigator
PI Name
Bastian Ravesteijn
PI Affiliation
Tinbergen Institute, Erasmus Centre for Health Economics Rotterdam, Erasmus School of Economics,
Contact Investigator

Additional Trial Information

Status
Completed
Start date
2007-01-01
End date
2009-04-30
Keywords
Health, Labor
Additional Keywords
JEL code(s)
Secondary IDs
Prior work
This trial is based on or builds upon one or more prior RCTs.
Abstract
We analyse the effects of the Dutch Nurse Family Partnership, an early-childhood intervention that offers home visits during and after pregnancy to young first-time mothers with low levels of education. In 2007, an RCT was conducted in the Netherlands. Previous research has found beneficial short-run effects by analysing survey data collected during the RCT (Mejdoubi et al., 2013; Mejdoubi et al., 2014; Mejdoubi et al., 2015). We combine this survey data with administrative data from Statistics Netherlands to look at the medium- and long-run effects of the intervention on parents and children. Hereby, we want to establish whether the intervention also benefits children’s development and parental well-being and functioning in the medium- and long-run.
External Link(s)
Link to the official (Dutch) website of the intervention.
Link to clinical trial registration initial study (2007).

Registration Citation

Citation
Ravesteijn, Bastian, Ilse van der Voort and Tom Van Ourti. 2023. "Long-run Effects of the Dutch Nurse-Family Partnership using Administrative Data." AEA RCT Registry. December 06. https://doi.org/10.1257/rct.11091-1.0
Sponsors & Partners

Sponsors

Partner

Name
Silvia van den Heijkant
Type
URL
https://www.amsterdamumc.org/en/research/researchers/silvia-van-den-heijkant.htm
Experimental Details

Interventions

Intervention(s)
The Nurse Family Partnership (NFP) is an early-childhood intervention developed by David Olds that targets first-time mothers with low levels of education. The NFP started in the United States in the 1970s and has since spread to other countries, such as the Netherlands. We evaluate the effects of the Dutch NFP, VoorZorg (VZ). VZ consists of approximately 10 home visits during pregnancy, 20 during the first year, and 20 during the second year of life. During these visits, trained nurses teach mothers parenting skills by following clearly structured manuals. Main topics of discussion are: maternal health, child health, maternal personal development, maternal role, maternal relation with support system, and use of other professional help.
Intervention Start Date
2007-01-01
Intervention End Date
2009-04-30

Primary Outcomes

Primary Outcomes (end points)
Maternal outcomes:
- Education: including highest level of education.
- Employment: including hours worked, hourly wage, and use of social assistance and welfare benefits.
- (Mental) healthcare use: including use of physical healthcare, mental healthcare, other professional support, and substance abuse.
- Fertility: including number of later born children, spacing between children, and use of contraceptives.

Child outcomes:
- Education and development: including language development, stadardised test scores, and level of track enrolment.
- (Mental) health and (mental) healthcare use: including Strengths and Difficulties Questionnaires, overweight, use of physical healthcare, use of mental healthcare, and use other professional support.
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
- Stability: including marital status, change of household composition, and change of address.
- Maltreatment: including maltreatment reports and foster care.
- Crime: including crime and victimisation records.
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
We use data from an RCT conducted between 2007 and 2009. Healthcare workers in 20 Dutch municipalities recruited first-time mothers who were below the age of 26, with low levels of education, maximum of 28 weeks pregnant, and who understood Dutch. Eligible women were then interviewed to see if they had one of the following risk factors: single mother, history of domestic violence, history of substance abuse, psychosocial problems, unwanted pregnancy, problems with finding housing, financial problems, or unemployed. Women who also had at least one risk factor were randomised into the control or treatment group. Randomisation was stratified by region and ethnicity.
Experimental Design Details
Randomization Method
Randomisation was done by a list of random numbers created by SPSS that indicated control or treatment group.
Randomization Unit
Randomisation by mother/family.
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
460 mothers/families.
Sample size: planned number of observations
460 mothers/families.
Sample size (or number of clusters) by treatment arms
223 mothers/families randomised into the control group and 237 mothers/families randomised into the treatment group.
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
With a power of 0.7, the MDE is approximately equal to 0.232 times the standard deviation. Here, we do not take into account non-compliance, the possibility that not all individuals can be matched with the administrative data, and possible missing data.
Supporting Documents and Materials
IRB

Institutional Review Boards (IRBs)

IRB Name
Medical Ethical Committee of the VU University Medical Center
IRB Approval Date
2006-12-01
IRB Approval Number
NTR854
Analysis Plan

Post-Trial

Post Trial Information

Study Withdrawal

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Intervention

Is the intervention completed?
Yes
Intervention Completion Date
April 30, 2009, 12:00 +00:00
Data Collection Complete
Yes
Data Collection Completion Date
April 30, 2009, 12:00 +00:00
Final Sample Size: Number of Clusters (Unit of Randomization)
460 mothers/families were randomised into the treatment and control group. We are able to observe information on all these families. Note that for some families there are no child-outcomes available. These include the 14 miscarriages/perinatal deaths, leaving 446 liveborn children with available outcomes.
Was attrition correlated with treatment status?
Final Sample Size: Total Number of Observations
460 mothers/families were randomised into the treatment and control group. We are able to observe information on all these families. Note that for some families there are no child-outcomes available. These include the 14 miscarriages/perinatal deaths, leaving 446 liveborn children with available outcomes.
Final Sample Size (or Number of Clusters) by Treatment Arms
223 mothers/families randomised into the control group and 237 mothers/families randomised into the treatment group. There were 4 miscarriages/perinatal deaths in the control group and 10 miscarriages/perinatal deaths in the treatment group. In addition, 10 families dropped out during the intervention.
Data Publication

Data Publication

Is public data available?
No

Program Files

Program Files
Reports, Papers & Other Materials

Relevant Paper(s)

Reports & Other Materials