The Growing Well Study (GWS)
Growing Well Study: The Role of Portion Size, Plant-based and Commercial Foods on Young Child Growth
What are the study aims? To understand more about eating habits and age-appropriate food/drink portion sizes of children aged 6 months-5 years old, and how this affects their growth and dental health.
Why is this research important? Healthy diets in early years are important for growth and development. However, clear guidance for parents on what and how much children should eat is missing due to lack of up-to-date information.
What will the investigators do? Information will be collected at two time points. At baseline, parents/guardians of children aged 6 months-4 years from Leeds, Doncaster and East London will complete questionnaires about their child's sociodemographic information and food intake. They will be asked to record what their child eats for three separate one-day periods using an online system called 'myfood24'. Parents will also attend one in-person session for measuring their child's length/height, weight, and waist circumference.
At follow-up one year later, parents/guardians will complete surveys again, with another in-person session to look at growth and assess dental health.
What do the investigators expect to achieve and what happens next? They want to understand how growth and dental health are influenced by nutrient intakes, dietary patterns, and portion sizes for key food groups. They will also identify how much of different foods children should be eating, and whether commercial foods and sweet drinks are relevant.
They will explore which dietary factors can support healthier children; and how low intakes of key foods or vitamins/minerals in vulnerable groups could be redressed. The study will provide unique information, allowing for development of recommendations for parents and policy-makers on age-appropriate portions, on achieving good nutrition in UK children and within special dietary groups, and on dietary considerations in caring for children's teeth.
調査の概要
状態
状態
条件
条件
介入・治療
介入・治療
詳細な説明
Research question
The investigators will answer questions posed by the recent Scientific Advisory Committee on Nutrition (SACN) report:
- What are age-appropriate food and drink portion sizes in relation to growth and dental health?
- What are the short-term effects (12 months) on growth and dental health of commercial foods for children; vegetarian/vegan/dairy-free dietary patterns?
- What is the impact on growth and dental health of macro- and micro-nutrient intakes; fruit juices/free sugars; formula milks for 12m+; sweeteners?
Background In the UK, little contemporary data exists on diet in young children but worrying trends in preschool overweight and dental health are reported. Current young child diets do not meet dietary recommendations and evidence-driven age-appropriate portion size recommendations are missing. Further research into the impact of plant-based diets, the use of commercial foods, and toddler milks is also recommended by SACN.
Aims and Objectives To provide new evidence on diet in children aged 6 months - 5 years, linked to optimum growth and dental health. Quantifying age-appropriate portion sizes for different foods and drinks.
- Collect data on child dietary intake, portion sizes.
- Collect data on parent and child attributes, including child anthropometrics and dental health.
- Evaluate food and nutrient intake in relation to i) growth over 12 months, ii) child and parent characteristics, including ethnic diversity, deprivation and iii) dental health.
- Make recommendations for nutrition and age-appropriate portions.
Methods 1,890 parents of young children (6 months - 4 years) will be recruited through a combination of community outreach and hospital-based recruitment. This will include participants from the Born and Bred in (BaBi) Network birth cohorts in Leeds, Doncaster, and East London, as well as from the Generation Study. Recruitment will include approximately equal distribution in each year bracket, 20% non-white, 20% from deprived locations, and 15% vegetarian/vegan/non-dairy diet. Protocols are in place to ensure recruitment targets are met. Protocols, consent forms, and questionnaires have been co-designed with our Parent Advisory Group.
Baseline data will be collected using i) online survey, ii) fieldworker-measured height/length, weight, abdominal circumference, iii) 3 x 24h measures of diet spanning several months, and may possibly include iv) saliva collection in a subsample (if funding is obtained). Follow-up data collected after 12 months will repeat baseline measures and additionally include a dental assessment.
Cross-sectional and longitudinal analysis will explore how growth and dental health are influenced by nutrient intakes, diet pattern, and food portion sizes. Age/gender appropriate portion sizes for key food groups will be characterised with linear mixed-effects modelling for specific foods/food groups in relation to the child's position on the growth chart centiles.
Anticipated Impact and Dissemination Knowledge of associations between food and nutrient intakes and growth/dental health and of suboptimal intakes in vegan/vegetarian/dairy-free or vulnerable groups will enable evidence-based guidelines on age-appropriate portion sizes and optimal diet composition.
Guideline promotion to key stakeholders and visual feedback to participants will support intake of age-appropriate portions and healthier diets. Ultimately resulting in healthier children, with better dental health. Guidelines will also highlight social inequalities, indicating specific actions to redress imbalances
研究の種類
研究の種類
入学 (推定)
入学
連絡先と場所
研究連絡先
研究連絡先
- 名前:Diane Threapleton E Threapleton, PhD
- 電話番号:+441133435530
- メール:D.E.Threapleton@leeds.ac.uk
研究連絡先のバックアップ
- 名前:Sofia Barragan Vazquez del Mercado, PhD
- 電話番号:+441133435530
- メール:s.barragan@leeds.ac.uk
研究場所
-
-
West Yorkshire
-
Doncaster、West Yorkshire、イギリス、LS6 2EF
- 募集
- Doncaster and Bassetlaw Teaching Hospitals NHS Foundation Trust
-
コンタクト:
- Sofia Barragan Vazquez del Mercado, PhD
- 電話番号:+441133435530
- メール:s.barragan@leeds.ac.uk
-
コンタクト:
- Chloe L Thackray, BSc
- 電話番号:+441133435530
- メール:C.L.Thackray@leeds.ac.uk
-
Doncaster、West Yorkshire、イギリス
- 募集
- Community settings across Doncaster
-
コンタクト:
- Sofia Barragan Vazquez del Mercado, PhD
- 電話番号:+441133435530
- メール:s.barragan@leeds.ac.uk
-
コンタクト:
- Chloe L Thackray, BSc
- 電話番号:+441133435530
- メール:C.L.Thackray@leeds.ac.uk
-
Leeds、West Yorkshire、イギリス、LS6 2EF
- 募集
- Leeds Teaching Hospitals NHS Trust
-
コンタクト:
- Sofia Barragan Vazquez del Mercado, PhD
- 電話番号:+441133435530
- メール:s.barragan@leeds.ac.uk
-
コンタクト:
- Chloe L Thackray, BSc
- 電話番号:+441133435530
- メール:C.L.Thackray@leeds.ac.uk
-
Leeds、West Yorkshire、イギリス
- 募集
- Community settings across Leeds
-
コンタクト:
- Sofia Barragan Vazquez del Mercado, PhD
- 電話番号:+441133435530
- メール:s.barragan@leeds.ac.uk
-
コンタクト:
- Chloe L Thackray, BSc
- 電話番号:+441133435530
- メール:C.L.Thackray@leeds.ac.uk
-
London、West Yorkshire、イギリス、LS6 2EF
- 募集
- Barts Health NHS Trust
-
コンタクト:
- Sofia Barragan Vazquez del Mercado, PhD
- 電話番号:+441133435530
- メール:s.barragan@leeds.ac.uk
-
コンタクト:
- Chloe L Thackray, BSc
- 電話番号:+441133435530
- メール:C.L.Thackray@leeds.ac.uk
-
London、West Yorkshire、イギリス、LS6 2EF
- 募集
- Community settings across East London
-
コンタクト:
- Sofia Barragan Vazquez del Mercado, PhD
- 電話番号:+441133435530
- メール:s.barragan@leeds.ac.uk
-
コンタクト:
- Chloe L Thackray, BSc
- 電話番号:+441133435530
- メール:C.L.Thackray@leeds.ac.uk
-
-
参加基準
適格基準
適格基準
就学可能な年齢
- 子
健康ボランティアの受け入れ
サンプリング方法
調査対象母集団
説明
Inclusion Criteria:
- Children aged 6 months-4 years along with their parents or guardians who reside in or near one of the three study locations and planned fieldwork sites: Leeds, Doncaster, or East London. For East London, eligibility includes individuals living in or near Tower Hamlets or an adjacent borough
- All participants are eligible regardless of background, language, educational ability, or literacy level.
Exclusion Criteria:
- Plan to move outside of the study area within the next 12 months
- Children not living with the consenting parent/guardian for any part of the week or not living with the consenting parent/guardian at the time of data collection (e.g. in care, hospital, or living wholly with another family member).
- Children with significant oral feeding difficulties (e.g. tube-feeding or developmental delays)
- Children that have been diagnosed with a long-term condition that affects their growth or development (e.g. hormonal or genetic conditions)
- Children from subgroups where quotas have been filled will be excluded to maintain balanced representation across all study groups (e.g., age 3, non-deprived locations).
研究計画
研究はどのように設計されていますか?
デザインの詳細
この研究は何を測定していますか?
主要な結果の測定
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Weight-for-height/length Z scores
時間枠:Baseline (2026) and follow-up 12 months later
|
Weight (kg) and length or height (cm) are combined to this indicator.
A standardized measure of body weight relative to height or length and sex.
Following international reccomendations, length is used for children <2 years and height for those >=2 years.
Scores typically range from -5 to +5 Z scores, with higher scores indicating greater weight relative to height/length.
|
Baseline (2026) and follow-up 12 months later
|
|
Dental caries
時間枠:Follow-up only (2027)
|
Prevalence following the National Dental Epidemiology Programme methodology, including a visual-only examination by trained and calibrated dental examiners, using the dentinal cavitation (d₃mft) as diagnostic threshold.
|
Follow-up only (2027)
|
二次結果の測定
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Dental health
時間枠:Follow-up only (2027)
|
Presence of plaque, sepsis and enamel defects associated with dentinal cavitation.
|
Follow-up only (2027)
|
|
Length/Height-for-Age Z-score
時間枠:Baseline (2026) and 12-month follow up
|
Length or height (cm) relative to age are used for this indicator.
Length/height-for-age calculated using UK WHO growth standards and expressed as a Z-score (range -6 to +6).
Higher Z-scores indicate greater attained length/height relative to age.
Following international standards, if the child is <2years indicator will use length, and if >=2 years height.
|
Baseline (2026) and 12-month follow up
|
|
Weight-for-Age Z-score
時間枠:Baseline (2026) and 12-month follow up
|
Weight (kg) in relation to age are used for this indicator.
Weight-for-age calculated using UK WHO growth standards and expressed as a Z-score.
Values within the range of -6 and +5 Z scores.
Higher scores indicate greater body weight relative to age.
|
Baseline (2026) and 12-month follow up
|
|
Body Mass Index for-Age Z-score
時間枠:Baseline (2026) and 12 month follow-up
|
Body mass index (BMI) calculated as weight (kg)/height or length (m²), standardized for age using UK WHO growth standards and expressed as a Z-score.
Values range between -5 and + 5 Z scores.
Higher scores indicate higher BMI relative to age.
|
Baseline (2026) and 12 month follow-up
|
|
Waist circumference
時間枠:Baseline (2026) and 12 month follow-up
|
Waist circumference at the navel level measured using standard anthropometric procedures.
Unit of measure are cm, no predetermined minimum or maximum values.
Higher values indicate larger waist circumference.
|
Baseline (2026) and 12 month follow-up
|
協力者と研究者
協力者
協力者
捜査官
捜査官
- 主任研究者:Janet E Cade, PhD、University of Leeds
- 主任研究者:Diane E Threapleton, PhD、University of Leeds
出版物と役立つリンク
便利なリンク
研究記録日
主要日程の研究
研究開始 (実際)
研究開始
一次修了 (推定)
一次修了
研究の完了 (推定)
研究の完了
試験登録日
最初に提出
最初に提出
QC基準を満たした最初の提出物
QC基準を満たした最初の提出物
最初の投稿 (実際)
最初の投稿
学習記録の更新
投稿された最後の更新 (実際)
投稿された最後の更新
QC基準を満たした最後の更新が送信されました
QC基準を満たした最後の更新が送信されました
最終確認日
最終確認日
詳しくは
本研究に関する用語
キーワード
追加の関連 MeSH 用語
その他の研究ID番号
その他の研究ID番号
- 2025-NCT43
- NIHR207073 (その他の助成金/資金番号:National Institute for Health and Care Research (NIHR))
- 347332 (その他の識別子:IRAS)
個々の参加者データ (IPD) の計画
個々の参加者データ (IPD) を共有する予定はありますか?
IPD プランの説明
医薬品およびデバイス情報、研究文書
米国FDA規制医薬品の研究
米国FDA規制機器製品の研究
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。