Evidence map›Paper›PMID 26132306›Full record

Trial reportPediatric obesity2016

A randomized pilot study of dietary treatments for polycystic ovary syndrome in adolescents.

J M W Wong, M Gallagher, H Gooding, H A Feldman, C M Gordon, D S Ludwig, C B Ebbeling

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in Pediatric obesity, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 6 pooled it
1.3field-weighted citation impact, top 16% 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.

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

23 citing papers in PubMed, 6 syntheses or guidelines pooled it, 51 citations in OpenAlex.

  1. Pooled it
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  6. Lifestyle changes in women with polycystic ovary syndrome.The Cochrane database of systematic reviews · 2019
    Pooled it
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  15. Polycystic Ovary Syndrome in Adolescence: Challenges in Diagnosis and Management.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2022
    Article
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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

7 authors at 3 institutions in 2 countries.

J M W WongNew Balance Foundation Obesity Prevention Center, Boston Children's Hospital, Boston, MA, USA.
M GallagherNew Balance Foundation Obesity Prevention Center, Boston Children's Hospital, Boston, MA, USA.
H GoodingDivision of Adolescent and Young Adult Medicine, Boston Children's Hospital, Boston, MA, USA.
H A FeldmanClinical Research Center, Boston Children's Hospital, Boston, MA, USA.
C M GordonDivisions of Adolescent Medicine and Endocrinology, Hasbro Children's Hospital, Providence, RI, USA.
D S LudwigNew Balance Foundation Obesity Prevention Center, Boston Children's Hospital, Boston, MA, USA.
C B EbbelingNew Balance Foundation Obesity Prevention Center, Boston Children's Hospital, Boston, MA, USA.
Boston Children's Hospital · USNew Balance (United States) · USProvidence College · US

Funding

Harvard Clinical and Translational Science CenterUL1TR001102 · NCATS · HARVARD MEDICAL SCHOOL · PI NADLER, LEE MARSHALL · 2013 to 2017
$106.2M
Effects of Diet on Hormones, Metabolism and Body WeightK24DK082730 · NIDDK · BOSTON CHILDREN'S HOSPITAL · PI LUDWIG, DAVID S · 2009 to 2018
$1.6M
NCATS NIH HHS UL1 TR001102NIDDK NIH HHS K24 DK082730
6 · The paper itself

Abstract

backgroundEvidence is lacking to recommend one diet over another when treating polycystic ovary syndrome (PCOS).

objectivesTo obtain preliminary data, comparing the impact of a low-glycaemic load (LGL) vs. low-fat (LF) diet on biochemical hyperandrogenism in overweight and obese adolescents with PCOS. To ascertain feasibility of recruiting study participants, in partnership with an adolescent clinic, and implementing dietary interventions.

methodsRandomized controlled trial of 19 overweight and obese adolescents with PCOS and not using hormonal contraceptives (HCs). Interventions comprised nutrition education, dietary counselling and cooking workshops to foster adherence to a LGL (45% carbohydrate, 35% fat, 20% protein) or LF (55% carbohydrate, 25% fat, 20% protein) diet over 6 months. Serum bioavailable testosterone was the primary outcome.

resultsSixteen (LGL, n = 7; LF, n = 9) participants completed the study. Body fat percentage decreased (P < 0.05) in response to the interventions, with no difference between the LGL and LF groups (-1.2% vs. -2.2%; P = 0.16). Bioavailable testosterone did not change for either group (-0.4 vs. -1.8 ng dL(-1) ; P = 0.35). Regarding feasibility, recruiting adolescents posed a challenge, and use of HCs was a main reason for ineligibility. Participants attended 5.9 of 6 in-person visits and 2.6 of 3 cooking workshops, completed 4.9 of 6 telephone counselling calls, and reported high satisfaction with the diets and cooking workshops (≥8 on a 10-cm scale).

conclusionsDietary interventions were beneficial for weight control but did not attenuate biochemical hyperandrogenism. Innovative strategies are needed to recruit adolescents for studies aimed at assessing independent effects of diet on features of PCOS.

Indexed as

AdolescentAdultBody CompositionCookingCounselingDietDiet, Fat-RestrictedFemaleGlycemic LoadHumansInsulin ResistanceObesityOverweightPatient Education as TopicPilot ProjectsPolycystic Ovary SyndromeBioavailable testosteronedietary interventionelectronic medical recordpolycystic ovary syndrome

Identifiers

PMID26132306
PMCPMC4698106
OpenAlexW2167025774

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.