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Guelph Family Health Study: Full Study (GFHS)

18. září 2018 aktualizováno: Jess Haines, University of Guelph
The overall objective of this research is to test, among families with children age 2-5 years, the immediate and longer-term impacts of a home-based intervention to improve household routines associated with reduced obesity risk. The investigators primary hypothesis is that, compared to control, children in the intervention group will have lower BMI following the 6-month intervention period and 18-month follow-up period. The secondary outcomes are change in children's % body fat, waist circumference and obesity-related behaviours: sleep, activity, sedentary behaviour, family meals, and dietary intake. Although child outcomes are the focus of this evaluation, changing household routines may also improve parent behaviour; thus, the investigators will assess change in parent behaviours and weight outcomes. This study will also assess the cost-effectiveness of the intervention from a societal perspective.

Přehled studie

Postavení

Neznámý

Podmínky

Detailní popis

The overall objective of this research is to test, among families with children age 2-5 years, the immediate and longer-term impacts of a home-based intervention to improve household routines associated with reduced obesity risk. The primary hypothesis is that, compared to control, children in the intervention group will have lower BMI following the 6-month intervention period and 18-month follow-up period. The secondary outcomes are change in children's % body fat, waist circumference and obesity-related behaviours: sleep, activity, sedentary behaviour, family meals, and dietary intake. Although child outcomes are the focus of this evaluation, changing household routines may also improve parent behaviour; thus, the investigators will assess change in parent behaviours and weight outcomes. This study also assess the cost-effectiveness of the intervention from a societal perspective.

The investigators will randomly allocate 356 socio-economically diverse Ontario families to receive either: 1) 4 motivational coaching home visits, bi-weekly emails, and mailed behaviour supports (intervention group), or 2) Monthly emails with general health information (control group). Primary and secondary outcomes will be assessed at baseline, post-intervention (6-months), and 18-month follow-up, and data will be analyzed by intention to treat.

This study tests a novel and promising approach to obesity prevention - an approach that engages families at home, where they eat, play, and sleep. The interdisciplinary investigator team has partnered with parents and key knowledge users in public health and primary care to develop this intervention. As a result, this research could provide a sustainable model for early life obesity prevention, leading to long-term improvements in health and reduction in costs to the health system and society as a whole.

Typ studie

Intervenční

Zápis (Očekávaný)

900

Fáze

  • Nelze použít

Kontakty a umístění

Tato část poskytuje kontaktní údaje pro ty, kteří studii provádějí, a informace o tom, kde se tato studie provádí.

Studijní místa

    • Ontario
      • Guelph, Ontario, Kanada, N1G 2W1
        • Nábor
        • Univeristy of Guelph
        • Kontakt:
        • Kontakt:
        • Vrchní vyšetřovatel:
          • Jess Haines, PhD

Kritéria účasti

Výzkumníci hledají lidi, kteří odpovídají určitému popisu, kterému se říká kritéria způsobilosti. Některé příklady těchto kritérií jsou celkový zdravotní stav osoby nebo předchozí léčba.

Kritéria způsobilosti

Věk způsobilý ke studiu

1 rok a starší (Dítě, Dospělý, Starší dospělý)

Přijímá zdravé dobrovolníky

Ano

Pohlaví způsobilá ke studiu

Všechno

Popis

Inclusion Criteria:

  • families who have at least 1 child age 18 months - 5 years
  • families who live in the Guelph area
  • families who can respond to English surveys

Exclusion Criteria:

  • plan to move away within the next year
  • have children with severe health conditions (e.g., cerebral palsy) that prevent participation in study activities.

Studijní plán

Tato část poskytuje podrobnosti o studijním plánu, včetně toho, jak je studie navržena a co studie měří.

Jak je studie koncipována?

Detaily designu

  • Primární účel: Prevence
  • Přidělení: Randomizované
  • Intervenční model: Paralelní přiřazení
  • Maskování: Singl

Zbraně a zásahy

Skupina účastníků / Arm
Intervence / Léčba
Aktivní komparátor: Control
Families randomized to control will receive monthly emails containing publicly available handouts on general child health.
monthly emails with general health information
Experimentální: Intervention - 4 Home Visits
Families randomized to the intervention will receive: a) 4 home visits from a health educator, b) weekly e-mails, and c) monthly mailed behavioural supports.
4 home visits from a health educator, weekly e-mails, and monthly mailed behavioural supports.

Co je měření studie?

Primární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Child - change in BMI
Časové okno: Baseline, 6 Months and 18 Months
Trained staff will use standard practices to measure child height to the nearest 0.1 cm with a Shorrboard stadiometer and child weight to the nearest 0.1 kg using a Seca scale. BMI will be the ratio of weight (kg) to the square of standing height (m).
Baseline, 6 Months and 18 Months

Sekundární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Child - change in waist circumference
Časové okno: Baseline, 6 Months, 18 Months
Trained staff will measure waist circumference at the top of the iliac crest to the nearest 0.1cm, using the NIH protocol.
Baseline, 6 Months, 18 Months
Child - change in % body fat
Časové okno: Baseline, 6 Months, 18 Months
Trained staff will use bioelectrical impedance analysis to assess child body composition and use the equation by Kusher to determine % body fat.
Baseline, 6 Months, 18 Months
Child - change in sleep duration
Časové okno: Baseline, 6 Months, 18 Months
Sleep duration will be assessed using the wActiSleep+ Activity Monitor (ActiGraph). Activity monitors will be worn on the child's non-dominant wrist for 7 consecutive days. Sleep measures will be determined using the validated Sadeh algorithm.
Baseline, 6 Months, 18 Months
Child - change physical activity
Časové okno: Baseline, 6 Months, 18 Months
Physical activity will be assessed using the wActiSleep+ Activity Monitor (Actigraph). Activity monitors will be worn on the child's hip for 7 consecutive days. Validated cut-off values for physical activity for preschool children will be used to determine physical activity.
Baseline, 6 Months, 18 Months
Child - change in sedentary behaviour
Časové okno: Baseline, 6 Months, 18 Months
Sedentary behaviour will be assessed using the wActiSleep+ Activity Monitor (Actigraph). Activity monitors will be worn on the child's hip for 7 consecutive days. Validated cut-off values for sedentary behaviour for preschool children will be used to assess sedentary behaviour.
Baseline, 6 Months, 18 Months
Child - change in dietary behaviour (sugar sweetened beverages, fruit and vegetable intake, etc).
Časové okno: Baseline, 6 Months, 18 Months
To assess children's dietary intake, parents will be asked record all food and beverages that their child consumes over a 3-days period (2 weekdays and 1 weekend day). Data will be analyzed for energy and nutrient intake via ESHA nutrient analysis software.
Baseline, 6 Months, 18 Months
Adult and child - change in family meals
Časové okno: Baseline, 6 Months, 18 Months
Parents will report frequency of family meals using an item from The Home Environment Inventory.
Baseline, 6 Months, 18 Months
Adult - change in BMI
Časové okno: Baseline, 6 Months, 18 Months
Trained staff will use standard practices to measure adult height to the nearest 0.1 cm with a stadiometer and adult weight to the nearest 0.1 kg using a Seca scale. BMI will be the ratio of weight (kg) to the square of standing height (m).
Baseline, 6 Months, 18 Months
Adult - change in waist circumference
Časové okno: Baseline, 6 Months, 18 Months
Trained staff will measure waist circumference at the top of the iliac crest to the nearest 0.1cm, using the NIH protocol.
Baseline, 6 Months, 18 Months
Adult - change in % body fat
Časové okno: Baseline, 6 Months, 18 Months
Trained staff will measure parental body composition using air displacement plethysmography, i.e., BODPOD™.
Baseline, 6 Months, 18 Months
Adult - change in sleep duration
Časové okno: Baseline, 6 Months, 18 Months
Sleep duration will be assessed using the wActiSleep+ Activity Monitor (ActiGraph). Activity monitors will be worn on the participants non-dominant wrist for 7 consecutive days. Sleep measures will be determined using the a validated Sadeh algorithm.
Baseline, 6 Months, 18 Months
Adult - change in physical activity
Časové okno: Baseline, 6 Months, 18 Months
Physical activity will be assessed using the wActiSleep+ Activity Monitor (Actigraph). Activity monitors will be worn on the participant's hip for 7 consecutive days. Validated cut-off values for physical activity will be used to determine physical activity.
Baseline, 6 Months, 18 Months
Adult - change in sedentary behaviour
Časové okno: Baseline, 6 Months, 18 Months
Sedentary behaviour will be assessed using the wActiSleep+ Activity Monitor (Actigraph). Activity monitors will be worn on the child's hip for 7 consecutive days. Validated cut-off values for sedentary behaviour will be used to assess sedentary behaviour.
Baseline, 6 Months, 18 Months
Adult - change in dietary behaviour
Časové okno: Baseline, 6 Months, 18 Months
To assess parent's dietary intake, parents will complete one 24-hour recall using the Automated Self-Administered 24-hour-Canada (ASA24®) dietary recall system, a web-based tool that collects and codes 24-hour recalls using the Canadian Nutrient File.
Baseline, 6 Months, 18 Months
Adult - motivation for lifestyle change
Časové okno: Baseline, 6 Months, 18 Months
Treatment Self-Regulation Questionnaire will be used to assess family level of autonomous motivation.
Baseline, 6 Months, 18 Months
Social determinants of obesity
Časové okno: Baseline, 6 Months, 18 Months
The investigators will assess parental education, marital status, annual household income, parental work patterns, food security, parent perception of neighbourhood safety, and access to grocery stores and indoor and outdoor spaces to be physically active.
Baseline, 6 Months, 18 Months
Cost-effectiveness of Intervention
Časové okno: Baseline, 6 Months, 18 Months
The cost effectiveness of the study intervention will be assessed from a societal perspective. The direct costs associated with the intervention will be assessed, as well as health services use and indirect patient costs for both intervention and control groups. Direct costs of the intervention will be estimated from process data collected during the intervention. Through surveys at post-intervention, data will also be collected on costs to families for participating in the intervention, including time spent on home visits and other time costs associated with implementing the intervention recommendations. Health services use will be collected from parents and from linkage with administrative datasets (Ontario Health Insurance Plan). Parents will also be asked to report indirect patient costs, including number of missed school/work days.
Baseline, 6 Months, 18 Months

Spolupracovníci a vyšetřovatelé

Zde najdete lidi a organizace zapojené do této studie.

Vyšetřovatelé

  • Vrchní vyšetřovatel: Jess Haines, PhD, Unviersity of Guelph
  • Ředitel studie: David Ma, PhD, University of Guelph

Termíny studijních záznamů

Tato data sledují průběh záznamů studie a předkládání souhrnných výsledků na ClinicalTrials.gov. Záznamy ze studií a hlášené výsledky jsou před zveřejněním na veřejné webové stránce přezkoumány Národní lékařskou knihovnou (NLM), aby se ujistily, že splňují specifické standardy kontroly kvality.

Hlavní termíny studia

Začátek studia (Aktuální)

1. června 2017

Primární dokončení (Očekávaný)

1. června 2020

Dokončení studie (Očekávaný)

1. září 2020

Termíny zápisu do studia

První předloženo

13. října 2016

První předloženo, které splnilo kritéria kontroly kvality

17. října 2016

První zveřejněno (Odhad)

20. října 2016

Aktualizace studijních záznamů

Poslední zveřejněná aktualizace (Aktuální)

20. září 2018

Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality

18. září 2018

Naposledy ověřeno

1. září 2018

Více informací

Termíny související s touto studií

Další identifikační čísla studie

  • 14AP009

Plán pro data jednotlivých účastníků (IPD)

Plánujete sdílet data jednotlivých účastníků (IPD)?

NE

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Studuje lékový produkt regulovaný americkým FDA

Ne

Studuje produkt zařízení regulovaný americkým úřadem FDA

Ne

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