Evidence map›Paper›PMID 24509897›Full record

ArticleRheumatology international2014

Reliability and validity of the Spanish version of the Pittsburgh Sleep Quality Index (PSQI) in patients with fibromyalgia.

Fidel Hita-Contreras, Emilio Martínez-López, Pedro A Latorre-Román, Francisco Garrido, María A Santos, Antonio Martínez-Amat

3 registry-linked trialsAbstract readValidation Study
PubMed Publisher
In one paragraph

Article in Rheumatology international, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 3 registered trials, which are not on this map. Cited by 117 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
117citing papers in PubMed, 7 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.

NCT04490798 completednot on this mapstarted 2020, after this paper: background citation

A Retrospective Longitudinal Cohort Study to Determine the Effectiveness of Integrated a Clinical Pathway Approach for Chronic Pain Treatment With Acupuncture in a Pain Clinic

TypeobservationalSponsorHospital Son LlatzerRan2020 to 2021Enrolled3,245ConditionsChronic Pain, Lumbar Back Pain, Osteoarthritis, Knee, HeadacheArmsElectroacupuncture
NCT04685837 nacompletednot on this mapstarted 2020, after this paper: background citation

Tele-rehabilitation Versus Face-to-face in the Approach to Non-specific Subacute Low Back Pain

TypeinterventionalSponsorAlexander AchalandabasoRan2020 to 2021Enrolled70ConditionsLow Back Pain, Rehabilitation, ExerciseArmstherapeutic exercise
NCT07323199 nanot yet recruitingnot on this mapstarted 2026, after this paper: background citation

High-Intensity Interval Training (HIIT) and Transcranial Direct Current Stimulation (tDCS) in Women With Fibromyalgia - Effects on Clinical and Neuro-physiological Variables: Randomized Clinical Trial Protocol

TypeinterventionalSponsorUniversidad Nacional Andres BelloRan2026 to 2027Enrolled40ConditionsFibromyalgia (FM)ArmsEXERCISE TRAINING WITH OR WITHOUT MEDICATION, Neuromodulators
3 · Its place in the literature

Who cites it

117 citing papers in PubMed, 7 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Measuring Subjective Sleep Quality: A Review.International journal of environmental research and public health · 2021
    Pooled it
  6. Patient Reported Outcome Measures of Sleep Quality in Fibromyalgia: A COSMIN Systematic Review.International journal of environmental research and public health · 2020
    Pooled it
  7. Pooled it
  8. Trial
  9. Trial
  10. Trial
  11. Efficacy ofNutrients · 2023
    Trial
  12. Trial
  13. Trial
  14. Trial
  15. Trial
  16. Trial
  17. Article
  18. Observational
  19. Article
  20. Article

57 more citing papers are in PubMed but not listed here.

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.

Fidel Hita-ContrerasDepartment of Health Sciences, Faculty of Health Sciences, University of Jaén, 23071, Jaén, Spain.
Emilio Martínez-López
Pedro A Latorre-Román
Francisco Garrido
María A Santos
Antonio Martínez-Amat

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Fibromyalgia (FM) is recognized as a common condition, characterized by widespread pain and associated with sleep disturbances and poor-quality sleep. The Pittsburgh Sleep Questionnaire Index (PSQI) is one of the most recommended instruments to measure sleep quality and sleep disorders. The purpose of our study was to translate the questionnaire into Spanish and to assess the psychometric properties of the Spanish version of the PSQI. A total of 138 women with FM belonging to a FM association (AFIXA, Andalusia, Spain) completed the study. Internal consistency and test-retest reliability were analyzed. Factorial analysis was performed for the PSQI components. Convergent validity of the PSQI was evaluated using Spearman's rank correlation coefficient with the Spanish versions of the Fibromyalgia Impact Questionnaire (FIQ) and the health survey short form-36 (SF-36). In our analysis, the Spanish version of the PSQI has shown a good internal consistency of the total score, with a Cronbach's alpha of 0.805, and an acceptable test-retest reliability, with a Spearman's correlation coefficient of 0.773 (p < 0.001), for the total score. A two-factor structure was generated by exploratory factor analysis, with a Cronbach's alpha of 0.866 for factor 1 and of 0.712 for factor 2. In convergent validity analysis, the PSQI total score showed a significant correlation (p < 0.01) with the FIQ total score and with the mental and physical health summaries scores of the SF-36. Our results show that the Spanish version of the PSQI provides a reliable instrument, with a good convergent validity for measuring sleep quality among Spanish FM patients.

Indexed as

Severity of Illness IndexSleepAdultAgedFemaleFibromyalgiaHumansMiddle AgedPsychometricsQuality of LifeReproducibility of ResultsSleep Wake DisordersSpainSurveys and QuestionnairesTranslating

Identifiers

PMID24509897

What OpenQuestion holds

Textmetadata
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.