Evidence map›Paper›PMID 20889574›Full record

ArticleRheumatology (Oxford, England)2011

Gender and ethnicity differences in patients with diffuse systemic sclerosis--analysis from three large randomized clinical trials.

Mahsa Nashid, Puja P Khanna, Daniel E Furst, Philip J Clements, Paul Maranian, James Seibold, Arnold E Postlethwaite, James S Louie, Maureen D Mayes, Harsh Agrawal and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Rheumatology (Oxford, England), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
1.7field-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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.

  1. Assessment of skin involvement in systemic sclerosis.Rheumatology (Oxford, England) · 2017
    Pooled it
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. 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

12 authors at 1 institution in 1 country.

Mahsa NashidDepartment of Medicine, David Geffen School of Medicine, Los Angeles, CA 90095, USA.
Puja P Khanna
Daniel E Furst
Philip J Clements
Paul Maranian
James Seibold
Arnold E Postlethwaite
James S Louie
Maureen D Mayes
Harsh Agrawal
Dinesh Khanna
investigators of the D-penicillamine, human recombinant relaxin and oral bovine type I collagen clinical trials
University of California, Los Angeles · US

Funding

Academic Training in RheumatologyT32AR053463 · NIAMS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI SINGH, RAM RAJ · 2007 to 2011
$1.1M
Health Values and Minimally Important Differences in Systemic SclerosisK23AR053858 · NIAMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI KHANNA, DINESH · 2007 to 2011
$617k
NIAMS NIH HHS 1 T32 AR053463NIAMS NIH HHS K23 AR053858
6 · The paper itself

Abstract

objectiveAlthough the incidence of dcSSc is higher in African-American and Hispanic populations compared with European Caucasian patients, it is not clear whether there are differences in subsequent disease course. Also, the potential impact of gender on the disease course of dcSSc is not well defined. Our objective was to assess the course of modified Rodnan skin score (MRSS), HAQ-disability index (HAQ-DI) and forced vital capacity per cent (FVC%) predicted between men vs women and three ethnic groups with dcSSc participating in three randomized clinical trials (RCTs).

methodData from RCTs (n = 495) were pooled and analysed. Baseline characteristics were compared in men vs women and among ethnic groups. A linear mixed effects model was used to assess the predictors of MRSS, HAQ-DI and FVC%. The primary independent variables were time-in-study and its interaction with gender and ethnicity. The models were adjusted for other covariates that were significant at baseline between gender and ethnicity analyses.

resultsMen had lower HAQI-DI scores compared with women (P < 0.05). Among the three ethnic groups, Caucasians were older, African-Americans had lower FVC% predicted and Hispanics had greater tender joint counts (P < 0.05). The course of MRSS, HAQ-DI and FVC% predicted during the study period was not significantly different between gender and three ethnicities. Time-in-study was an independent predictor of improvement in MRSS and HAQ-DI.

conclusionOur analysis explores the influence of gender and ethnicity on disease course in RCTs. These findings are relevant to issues of future trial design.

Indexed as

Severity of Illness IndexAdultBlack or African AmericanDisability EvaluationDisease ProgressionFemaleHispanic or LatinoHumansMaleMiddle AgedRandomized Controlled Trials as TopicScleroderma, DiffuseSex FactorsStatistics as TopicWhite People

Identifiers

PMID20889574
PMCPMC3107588
OpenAlexW2157587401

What OpenQuestion holds

Textmetadata
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.