Evidence map›Paper›PMID 24717420›Full record

ArticleAmerican journal of hypertension2014

Obese children and adolescents have elevated nighttime blood pressure independent of insulin resistance and arterial stiffness.

Kristian N Hvidt, Michael H Olsen, Jens-Christian Holm, Hans Ibsen

Registry-linked trialOpen access · bronzeAbstract read
In one paragraph

Article in American journal of hypertension, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01310088 (Blood Pressure and Central Vascular Stiffness in Obese Children. Relationship to Metabolic Disturbances and Subclinical Cardiovascular Damage. Effect of Weight Reduction), which is not on this map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 10% of its field
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.

NCT01310088 naunknown statusnot on this map

Blood Pressure and Central Vascular Stiffness in Obese Children. Relationship to Metabolic Disturbances and Subclinical Cardiovascular Damage. Effect of Weight Reduction

TypeinterventionalSponsorZealand University HospitalRan2011 to 2013Enrolled100ConditionsCentral Blood Pressure, Obesity, Subclinical Organ Damage, ChildrenArmsLifestyle intervention
3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 32 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Is Office Blood Pressure Measurement Reliable in Obese Adolescents?Diabetes, metabolic syndrome and obesity : targets and therapy · 2021
    Article
  5. Article
  6. Article
  7. Markers of subclinical vascular damages associate with indices of adiposity and blood pressure in obese children.Hypertension research : official journal of the Japanese Society of Hypertension · 2019
    Article
  8. Article
  9. Article
  10. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Kristian N HvidtDivision of Cardiology, Department of Medicine, Copenhagen University Hospital Holbæk, Holbæk, Denmark; Children's Obesity Clinic, Department of Pediatrics, Copenhagen University Hospital Holbæk, Holbæk, Denmark; krhv@regionsjaelland.dk.
Michael H OlsenCardiovascular and Metabolic Preventive Clinic, Department of Endocrinology, Center for Individualized Medicine in Arterial Diseases, Odense University Hospital and Hypertension in Africa Research Team, School for Physiology, Nutrition and Consumer Sciences, North-West University, South Africa.
Jens-Christian HolmChildren's Obesity Clinic, Department of Pediatrics, Copenhagen University Hospital Holbæk, Holbæk, Denmark;
Hans IbsenDivision of Cardiology, Department of Medicine, Copenhagen University Hospital Holbæk, Holbæk, Denmark;
Holbæk Sygehus · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundInsulin resistance has been related to elevated blood pressure (BP) in obese children and may adversely affect the vasculature by arterial stiffening. The objective was to investigate whether daytime and nighttime BP were elevated and related to insulin resistance and arterial stiffness in obese children and adolescents.

methodsNinety-two obese patients aged 10-18 years were compared with 49 healthy control individuals. Insulin resistance was measured as the homeostatic assessment model (HOMA), and arterial stiffness was measured as carotid-femoral pulse wave velocity (cfPWV).

resultsMean ± SD daytime systolic BP (SBP) (obese: 125±8.3mm Hg; control: 121±10.1mm Hg; P = 0.03) and nighttime SBP (obese: 108±10.7mm Hg; control: 102±8.2mm Hg; P = 0.0001) were higher in the obese group when compared with the control group. No difference was found in daytime diastolic BP (DBP), whereas nighttime DBP (obese: 60±6.6mm Hg; control: 57±4.8mm Hg; P = 0.001) and night-to-day BP ratios were higher in the obese group. Nighttime SBP was related to BMI z score (β = 6.0; 95% confidence interval (CI) = 2.9-9.1; P = 0.0002) and waist/height ratio (β = 36.7; 95% CI = 5.6-67.9; P = 0.02) in the obese group. HOMA index (obese: median = 3.7, interquartile range (IQR) = 2.3-6.0; control: median = 2.6, IQR = 1.8-3.4; P = 0.002) was higher, whereas cfPWV (obese: 4.8±0.8 m/s; control: 5.1±0.6 m/s; P = 0.03) was lower in the obese group. CfPWV was not related to logHOMA index. In multiple regression analyses, the higher nighttime BP in the obese group was independent of logHOMA and cfPWV.

conclusionsObese children had a higher nighttime BP when compared with the control group independently of insulin resistance and arterial stiffness. No relationship was found between insulin resistance and arterial stiffness. CLINICAL TRIAL REGISTRATION Clinicaltrials.gov identifier NCT01310088.

Indexed as

Blood PressureCircadian RhythmInsulin ResistanceVascular StiffnessAdolescentAge FactorsBlood Pressure Monitoring, AmbulatoryBody Mass IndexCase-Control StudiesChildChi-Square DistributionCross-Sectional StudiesFemaleHumansHypertensionMaleadolescenceambulatory blood pressure monitoringarterial stiffnessblood pressurechildrenhypertensionmicroalbuminurianighttimeobesitypulse wave velocity.

Identifiers

PMID24717420
PMCPMC4263935
OpenAlexW2020475009

What OpenQuestion holds

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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.