ArticleBMC public health2011
Summer effects on body mass index (BMI) gain and growth patterns of American Indian children from kindergarten to first grade: a prospective study.
Article in BMC public health, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00123032 (Bright Start), which is not on this map. Cited by 13 papers, 3 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Bright Start: Obesity Prevention in American Indian Children
Who cites it
13 citing papers in PubMed, 3 syntheses or guidelines pooled it, 21 citations in OpenAlex.
- Interventions to prevent obesity in children aged 5 to 11 years old.The Cochrane database of systematic reviews · 2024Pooled it
- Promoting Physical Activity Among Native American Youth: a Systematic Review of the Methodology and Current Evidence of Physical Activity Interventions and Community-wide Initiatives.Journal of racial and ethnic health disparities · 2016Pooled it
- Accelerated weight gain among children during summer versus school year and related racial/ethnic disparities: a systematic review.Preventing chronic disease · 2014Pooled it
- School-Based Weight Management Program Curbs Summer Weight Gain Among Low-Income Hispanic Middle School Students.The Journal of school health · 2019Trial
- Children's Health, Wellbeing and Academic Outcomes over the Summer Holidays: A Scoping Review.Children (Basel, Switzerland) · 2024Article
- Seasonal Variability in Weight Gain Among American Indian, Black, White, and Hispanic Children: A 3.5-Year Study.American journal of preventive medicine · 2021Observational
- COVID-19-related school closing aggravate obesity and glucose intolerance in pediatric patients with obesity.Scientific reports · 2021Article
- Circannual variation in relative weight of children 5 to 16 years of age.Pediatric obesity · 2018Article
- The State of the Summer: a Review of Child Summer Weight Gain and Efforts to Prevent It.Current obesity reports · 2018Review
- School year versus summer differences in child weight gain: a narrative review.Childhood obesity (Print) · 2014Review
- Comparison of total energy expenditure between school and summer months.Pediatric obesity · 2013Article
- Environmental and social-motivational contextual factors related to youth physical activity: systematic observations of summer day camps.The international journal of behavioral nutrition and physical activity · 2013Observational
- Accelerated Summer Weight Gain in a Low-Income, Ethnically Diverse Sample of Elementary School Children in Massachusetts.Childhood obesity (Print)Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 2 institutions in 2 countries.
Funding
Abstract
backgroundOverweight and obesity are highly prevalent among American Indian children, especially those living on reservations. There is little scientific evidence about the effects of summer vacation on obesity development in children. The purpose of this study was to investigate the effects of summer vacation between kindergarten and first grade on growth in height, weight, and body mass index (BMI) for a sample of American Indian children.
methodsChildren had their height and weight measured in four rounds of data collection (yielded three intervals: kindergarten, summer vacation, and first grade) as part of a school-based obesity prevention trial (Bright Start) in a Northern Plains Indian Reservation. Demographic variables were collected at baseline from parent surveys. Growth velocities (Z-score units/year) for BMI, weight, and height were estimated and compared for each interval using generalized linear mixed models.
resultsThe children were taller and heavier than median of same age counterparts. Height Z-scores were positively associated with increasing weight status category. The mean weight velocity during summer was significantly less than during the school year. More rapid growth velocity in height during summer than during school year was observed. Obese children gained less adjusted-BMI in the first grade after gaining more than their counterparts during the previous two intervals. No statistically significant interval effects were found for height and BMI velocities.
conclusionsThere was no indication of a significant summer effect on children's BMI. Rather than seasonal or school-related patterns, the predominant pattern indicated by weight-Z and BMI-Z velocities might be related to age or maturation.
trial registrationBright Start: Obesity Prevention in American Indian Children Clinical Trial Govt ID# NCT00123032.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.