Evidence map›Paper›PMID 33709202›Full record

ArticleJournal of patient-reported outcomes2021

Content validity and psychometric evaluation of the Functional Assessment of Chronic Illness Therapy-Fatigue scale in patients with chronic lymphocytic leukemia.

Daniel Eek, Cristina Ivanescu, Laura Corredoira, Oren Meyers, David Cella

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Journal of patient-reported outcomes, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02970318 (A Randomized, Multicenter, Open-Label, Phase 3 Study of Acalabrutinib), which is not on this map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 8% 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.

NCT02970318 phase3active not recruitingnot on this map

A Randomized, Multicenter, Open-Label, Phase 3 Study of Acalabrutinib (ACP-196) Versus Investigator's Choice of Either Idelalisib Plus Rituximab or Bendamustine Plus Rituximab in Subjects With R/R Chronic Lymphocytic Leukemia

TypeinterventionalSponsorAcerta Pharma BVRan2017 to 2027Enrolled310ConditionsChronic Lymphocytic LeukemiaArmsAcalabrutinib (ACP-196), Rituximab, Idelalisib, Bendamustine
3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 34 citations in OpenAlex.

  1. Guideline
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  13. Psychosocial consequences of head and neck cancer symptom burden after chemoradiation: a mixed-method study.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2024
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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

5 authors at 4 institutions in 3 countries.

Daniel EekAstraZeneca Gothenburg, Pepparedsleden 1, 431 50, Mölndal, Sweden. daniel.eek@astrazeneca.com.
Cristina IvanescuIQVIA, Amsterdam, The Netherlands.
Laura CorredoiraIQVIA, Barcelona, Spain.
Oren MeyersIQVIA, New York, NY, USA.
David CellaNorthwestern University, Evanston, IL, USA.
AstraZeneca (Sweden) · SEInstituto Químico Biológico · ESIQVIA (United States) · USNorthwestern University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeFatigue is a prominent symptom in individuals with chronic lymphocytic leukemia (CLL). This work evaluates the content validity and psychometric properties of the Functional Assessment of Chronic Illness Therapy-Fatigue scale (FACIT-Fatigue) in patients with CLL to determine if it is fit for purpose in CLL research.

methodsThe FACIT-Fatigue yields a 13-item total score from a five-item symptom subscale and an eight-item impact subscale. To evaluate content validity, cognitive debriefing interviews were conducted with 40 patients with CLL in the first-line or relapsed or refractory setting. Psychometric properties, including structural validity, internal consistency, construct and known-groups validity, were investigated using data from a phase 3 trial in relapsed or refractory CLL (NCT02970318).

resultsInterviewed patients considered the FACIT-Fatigue items relevant to their CLL experience, understood the terminology and agreed with response options. Confirmatory factor analysis confirmed the presence of symptom and impact subscales, but also supported unidimensionality of the FACIT-Fatigue. The FACIT-Fatigue total, symptom and impact subscales demonstrated good internal consistency (Cronbach's coefficient α > 0.85 and McDonald's omega ω > 0.90), and strong correlations with relevant EORTC QLQ-C30 scales (all Spearman's r ≥ 0.5). Known-groups validity was shown by significant differences between groups defined by baseline performance status, hemoglobin level and constitutional symptoms (all p < .0001). Cluster analysis supported FACIT-Fatigue score thresholds of 30 and 34 to define a severe fatigue population.

conclusionsContent validity and psychometric evaluation in patients with CLL demonstrated that the FACIT-Fatigue has good psychometric properties and is fit for purpose in CLL.

Indexed as

Chronic lymphocytic leukemiaContent validityFACIT-FatiguePsychometric properties

Identifiers

PMID33709202
PMCPMC7952480
OpenAlexW3135056831

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.