Evidence map›Paper›PMID 19524163›Full record

ArticleAmerican journal of preventive medicine2009

Effects of body size and body fatness on left ventricular mass in children and adolescents: Project HeartBeat!

Shifan Dai, Ronald B Harrist, Geoffrey L Rosenthal, Darwin R Labarthe

Abstract read
In one paragraph

Article in American journal of preventive medicine, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from 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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  5. Observational
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  12. Impact of childhood obesity on cardiac structure and function.Current treatment options in cardiovascular medicine · 2014
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Project HeartBeat! Concept, development, and design.American journal of preventive medicine · 2009
    Article
  18. Article
  19. Determinants of Left Ventricular Mass Among Apparently Normal Children in Enugu State.Nigerian medical journal : journal of the Nigeria Medical Association
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Shifan DaiDivision for Heart Disease and Stroke Prevention, National Center for Chronic Disease Prevention and Health Promotion, CDC, 4770 Buford Highway NE, Atlanta, GA 30341-3724, USA. sdai@cdc.gov
Ronald B Harrist
Geoffrey L Rosenthal
Darwin R Labarthe

Funding

PEDIATRIC EPIDEMIOLOGY OF CVD RISK FACTORSU01HL041166 · NHLBI · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI LABARTHE, DARWIN R. · 1990 to 1995
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NHLBI NIH HHS U01 HL041166NHLBI NIH HHS U01-HL-41166PHS HHS U48/CCU 609653
6 · The paper itself

Abstract

backgroundLeft ventricular mass (LVM) is a strong predictor of cardiovascular disease in adults. Available study findings on effects of body fatness on LVM in children are inconsistent. Understanding the impact of body fat on LVM in children may help prevent excessive LVM through measures to reduce overweight and obesity.

methodsHealthy children (n=678) aged 8, 11, and 14 years at baseline were examined at 4-month intervals for up to 4 years (1991-1995); 4608 valid measurements of LVM were obtained with M-mode echocardiography. A multilevel linear model was used for analysis. The impact of body size was examined by adding separately nine body-size indicators to a basic LVM-gender-age model. The impact of body fatness was tested by introducing four body-fatness indicators into the nine models, yielding 36 models.

resultsAll body-size indicators showed strong, positive effects on LVM. In models containing weight or body surface area (measuring both fat-free and fat contributions to body size), additional effects of body fatness were negative; in models containing fat-free mass (FFM) or height (both measuring body size independent of body fat), increased body fatness was related to a significant increase in LVM. For example, in models with FFM as a body-size indicator, a 1-SD increase in percent body fat or fat mass was related to a 5.4- or 7.2-g increase in LVM, respectively.

conclusionsEffects of body size on LVM attributable to fat-free body mass can be distinguished from those attributable to fat body mass; both are independent, positive predictors, but the former is the stronger determinant. When a body-size indicator not independent of body fat is used as a predictor, effects of fat-free body mass and fat body mass are forced to relate to the same indicator; because their magnitudes are estimated to be equal, the effect of fat body mass is overestimated. Thus, when an additional body-fatness indicator is included in the prediction of LVM, the additional estimated effect related to the indicator appears to be negative.

Indexed as

Adipose TissueAdolescentAge FactorsBody Fat DistributionBody SizeChildEchocardiographyFemaleFollow-Up StudiesHeart VentriclesHumansLinear ModelsLongitudinal StudiesMaleSex Factors

Identifiers

PMID19524163
PMCPMC2835464

What OpenQuestion holds

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Registered trials

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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.