Evidence map›Paper›PMID 24036634›Full record

Trial reportQuality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation2014

Psychometric evaluation of the hepatitis C virus patient-reported outcomes (HCV-PRO) instrument: validity, responsiveness, and identification of the minimally important difference in a phase 2 clinical trial.

Roger T Anderson, Robert W Baran, Pennifer Erickson, Dennis A Revicki, Birgitta Dietz, Katherine Gooch

Abstract readClinical Trial, Phase IIMulticenter StudyRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 2 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

11 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Direct-acting antivirals for chronic hepatitis C.The Cochrane database of systematic reviews · 2017
    Pooled it
  2. Direct-acting antivirals for chronic hepatitis C.The Cochrane database of systematic reviews · 2017
    Pooled it
  3. Article
  4. Observational
  5. Patient-reported outcomes 12 months after hepatitis C treatment with direct-acting antivirals: Results from the PROP UP study.Liver international : official journal of the International Association for the Study of the Liver · 2021
    Observational
  6. Observational
  7. Article
  8. Observational
  9. Observational
  10. Article
  11. Incorporating patient-reported outcomes into hepatitis C virus treatment studies.Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2014
    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

6 authors.

Roger T AndersonHershey Medical Center, Pennsylvania State University, Hershey, PA, USA, rtanders@psu.edu.
Robert W Baran
Pennifer Erickson
Dennis A Revicki
Birgitta Dietz
Katherine Gooch

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo describe the psychometric properties and identify the minimally important difference (MID) of the hepatitis C virus patient-reported outcomes (HCV-PRO) instrument. Chronic HCV infection and associated treatments negatively affect PROs of function and well-being.

methodsIn a phase 2 trial, HCV-infected patients received direct-acting antivirals (DAAs) for 12 weeks with peg-interferon/ribavirin (peg-IFN/RBV) for 48 weeks, or placebo plus peg-IFN/RBV. The HCV-PRO total score, SF-36 PCS and MCS scores, EQ-5D-3L, and EQ VAS were measured at baseline, week 8, end of DAA treatment (EODT), end of peg-IFN/RBV treatment (EOT), and posttreatment week 24 (SVR24). Convergent validity of the HCV-PRO was assessed by Pearson's correlation coefficients. Discriminant validity was assessed by analyzing mean HCV-PRO total scores by EQ-5D anxiety/depression and pain/discomfort domain scores (none vs. some) and presence/absence of depression or fatigue adverse events. MID was identified through effect size (ES) and receiver-operating characteristic (ROC) curve analyses (HCV-PRO response vs. SF-36 PCS/MCS and EQ VAS MID thresholds).

resultsIn 74 patients (22 % female; 81 % White; 51 % ≥50 years), correlations (0.64-0.96) between HCV-PRO total scores, SF-36 PCS/MCS scores, and EQ VAS scores at all time points supported convergent validity. HCV-PRO total scores were reduced to 10-30 points in patients impaired by depression, pain, or fatigue symptoms. Impact of peg-IFN/RBV regimen on HCV-PRO ES increased over time (EODT -0.76; EOT -0.93). ES and ROC curve analyses indicated an MID of -10 points.

conclusionThe HCV-PRO was valid and responsive in the population studied. An MID of -10 points represented a threshold of clinical significance for the HCV-PRO.

Indexed as

Health Status IndicatorsPatient Outcome AssessmentQuality of LifeAdolescentAdultAgedAged, 80 and overAntiviral AgentsAnxietyData Interpretation, StatisticalDepressionDrug Therapy, CombinationFemaleHepacivirusHepatitis C, ChronicHumansAntiviral AgentsInterferon Type IPlacebosRibavirin

Identifiers

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.