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Prevention of Overweight in Infancy (POInz)

6. juli 2020 opdateret af: Barry Taylor, University of Otago

Primary Prevention of Rapid Weight Gain in Early Childhood: a Randomised Controlled Trial

Obesity is one of the biggest threats to health in the 21st century. Rapid weight gain in the first year of life tends to lead to overweight in children, which in turn leads to overweight in adults. This rapid early weight gain occurs most often at weaning when eating patterns emerge. Infant sleep problems also appear to be associated with the risk of becoming overweight, and contribute to maternal post-natal depression. We propose to undertake a 4-arm randomised controlled trial to determine whether extra education and support for families around weaning and development of early food and activity habits, with or without intervention to improve infant sleep, will decrease the current risk patterns of rapid excessive early childhood weight gain in New Zealand. This would provide strong evidence for the value of such a strategy in the long term control of the obesity epidemic and its consequent complications.

This is a two-year intervention with follow-ups at 3.5, 5 and 11 years of age.

Studieoversigt

Status

Afsluttet

Betingelser

Detaljeret beskrivelse

We plan on undertaking a 4-arm randomised controlled trial to test the following hypotheses:

  1. That anticipatory guidance and extra education and support in infancy around weaning and decreasing/avoiding television watching will delay the timing of introduction of solid foods, will be associated with more successful introduction of nutrient dense foods with appropriate portion size and decrease small screen exposure leading to a lower number of children with excessive weight velocity in infancy and early childhood.
  2. That anticipatory guidance, education and extra support around the early development of infant sleeping patterns will decrease sleep problems, increase infant sleeping time, decrease arousals at night and lower sleep latency which will in turn influence rate of early infant weight gain.
  3. That interventions 1 and 2 will interact additively with regard to infant and early childhood weight gain.
  4. That intervention 2 will lead to lower rates of maternal depression and increased family well being.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

802

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

    • South Island
      • Dunedin, South Island, New Zealand, 9013
        • University of Otago

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

16 år til 55 år (Barn, Voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Mothers booked for delivery in Dunedin, New Zealand

Exclusion Criteria:

  • Women booked after 34 weeks gestation,
  • Identified congenital abnormality likely to affect feeding and/or growth
  • Home address outside of metropolitan Dunedin or Invercargill,
  • Families who are likely to shift out of metropolitan Dunedin or Invercargill in the next 2 years.
  • Unable to communicate in English or te reo Maori.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Forebyggelse
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Enkelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Ingen indgriben: Standard well child care
Standard Well Child Care (SWCC) - 8 Core visits at 2-4 weeks, 6 weeks, 3, 5, 8-10 and 15 months, 2 and 3 years.
Eksperimentel: Food Activity Breast feeding support
FAB (Food Activity Breast feeding support) 8 extra parent contacts for augmented education and support around breast feeding, food and activity
Standard well child care plus 7 extra parent contacts for augmented education and support around breast feeding, food and activity with 1 before birth and then at 1-2 weeks, and 3, 4, 7, 9, 13, and 18 months post-partum.
Eksperimentel: Sleep
Prevention of sleep problems in first 6 months and then active early intervention for sleep problems from 6 months to 24 months
Standard well child care plus 2 extra contacts focussed on Sleep with 1 before birth (anticipatory guidance), and sleep problem prevention at 3 weeks. A sleep problem intervention starting at 6 months was possible for those indicating their child had a sleep problem at 6 months of age. Main prevention advice focussed on placing baby to sleep awake, maximising night-day differences and use of sleep place in parents bedroom for first 6 months. Intervention after 6 months uses preferentially a technique called "parental presence", and if this does not fit family a technique called "camping out" and finally, if neither of the first two fit family, controlled crying.
Eksperimentel: FAB + Sleep
combination of interventions used in arms 2 and 3
Standard well child care plus 7 extra parent contacts for augmented education and support around breast feeding, food and activity with 1 before birth and then at 1-2 weeks, and 3, 4, 7, 9, 13, and 18 months post-partum.
Standard well child care plus 2 extra contacts focussed on Sleep with 1 before birth (anticipatory guidance), and sleep problem prevention at 3 weeks. A sleep problem intervention starting at 6 months was possible for those indicating their child had a sleep problem at 6 months of age. Main prevention advice focussed on placing baby to sleep awake, maximising night-day differences and use of sleep place in parents bedroom for first 6 months. Intervention after 6 months uses preferentially a technique called "parental presence", and if this does not fit family a technique called "camping out" and finally, if neither of the first two fit family, controlled crying.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
BMI z score
Tidsramme: 24 months (end of intervention)
BMI z score derived from ht and weight and using World Health Organisation (WHO) growth standards
24 months (end of intervention)
BMI z score
Tidsramme: 60 months of age (followup at 5 years of age)
BMI z score derived from ht and weight and using WHO growth standards
60 months of age (followup at 5 years of age)
BMI z score
Tidsramme: Follow-up at 11 years of age
BMI z score derived from height and weight and using WHO reference data
Follow-up at 11 years of age

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Dietary intake
Tidsramme: 24 months (end of intervention) and 60 months (end of follow-up) and 11 years (further follow-up)
Dietary information (foods, food groups, nutrients) via food frequency questionnaire
24 months (end of intervention) and 60 months (end of follow-up) and 11 years (further follow-up)
Television viewing
Tidsramme: 24 months (end of intervention) and 60 months (end of follow-up)
Hours of screen use by parental questionnaire
24 months (end of intervention) and 60 months (end of follow-up)
Major/ Moderate sleep problems
Tidsramme: 24 months (end of intervention)
Parents indicate presence of sleep problems in child
24 months (end of intervention)
Physical activity (PA)
Tidsramme: 24 months (end of intervention) and 60 months (end of follow-up) and 11 years (further follow-up)
PA measured using actical accelerometry over 5-7 days
24 months (end of intervention) and 60 months (end of follow-up) and 11 years (further follow-up)
Duration of exclusive and any breast feeding
Tidsramme: 24 months
Measured by repeated questionnaire
24 months
Parental depression score
Tidsramme: Measured at multiple timepoints between pregnancy and 24 months (end of intervention) and 60 months (end of follow-up)
Edinburgh Postnatal Depression questionnaire
Measured at multiple timepoints between pregnancy and 24 months (end of intervention) and 60 months (end of follow-up)
Sleep
Tidsramme: 24 months (end of intervention) and 60 months (end of follow-up) and 11 years (further follow-up)
Measured by questionnaire and accelerometry at multiple timepoints
24 months (end of intervention) and 60 months (end of follow-up) and 11 years (further follow-up)
Number of night awakenings
Tidsramme: 24 months (end of intervention) and 60 months (end of follow-up)
Measured by questionnaire and accelerometry at multiple timepoints
24 months (end of intervention) and 60 months (end of follow-up)
Self-regulation
Tidsramme: 42 and 60 months
Measured by questionnaire and laboratory based measures at follow-up only
42 and 60 months
Body composition
Tidsramme: 60 months and 11 years (further follow-up)
Measured by dual-energy x-ray absorptiometry at follow-up only
60 months and 11 years (further follow-up)

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Samarbejdspartnere

Efterforskere

  • Ledende efterforsker: Barry J Taylor, FRACP, University of Otago
  • Ledende efterforsker: Rachael Taylor, PhD, University of Otago

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Hjælpsomme links

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. maj 2009

Primær færdiggørelse (Faktiske)

1. april 2016

Studieafslutning (Faktiske)

1. april 2017

Datoer for studieregistrering

Først indsendt

3. maj 2009

Først indsendt, der opfyldte QC-kriterier

3. maj 2009

Først opslået (Skøn)

5. maj 2009

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

8. juli 2020

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

6. juli 2020

Sidst verificeret

1. juli 2020

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • 105891.01.P.NH
  • HRC 08/374 (Andet bevillings-/finansieringsnummer: NZ Health Research Council)

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

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