FYS Study: Epidemiological, Multicentre, Cross-sectional Study in a Clinical Practice Environment, About the Relationship Between Functioning Status and the Quality of Sleep Perceived by Schizophrenic Outpatients in Spain

Epidemiological, Multicentre, Cross-sectional Study in a Clinical Practice Environment, About the Relationship Between Functioning Status and the Quality of Sleep Perceived by Schizophrenic Outpatients in Spain

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT01376492

Enrollment

709

Registered

2011-06-20

Start date

2010-11-30

Completion date

2011-07-31

Last updated

2013-03-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Schizophrenia

Keywords

Schizophrenia, Sleep disturbances, Quality of sleep, Functioning level, Antipsychotic therapy.

Brief summary

The purpose of this study is to establish the relationship between performance of patients with schizophrenia and relationship with perceived quality of sleep. The secondary objectives are: to establish the prevalence of schizophrenic patients reporting sleep disturbances; to assess the potential epidemiological risk factors associated with the perceived impairment of quality of sleep; to establish the relationship between the clinical condition and the quality of sleep perceived; to assess the performance level of patients.

Detailed description

This is a multicenter, cross-sectional, epidemiological study in the daily clinical practice on the relationship between personal and social functionality and quality of sleep perceived in outpatients with schizophrenia. It is proposed to perform a simple screening for detecting schizophrenic patients reporting sleep disturbances. These patients will be assessed in a single visit and will be administered a number of quality of life and functional assessment scales. N/A

Interventions

OTHERFunctioning assessment

The functioning will be assessed with 2 scales, (Personal and Social Performance Scale (PSP) and Brief Psychiatric Rating Scale)

OTHERQuality of sleep assessment

The quality of sleep will be assessed with 2 scales, (Pittsburgh Sleep Quality Index (PSQI) and Epworth scale)

Study design

Observational model

CASE_CONTROL

Time perspective

CROSS_SECTIONAL

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

* Patient diagnosed of schizophrenia * reporting sleep disturbances at the time of the visit or patient not reporting sleep disturbances at the time of the visit * who are on stable antipsychotic therapy for at least 6 months prior to inclusion in the study * (or guardian/ legal representative) consenting to participate in the study by signing the written informed consent.

Exclusion criteria

* Patient who, in the investigator's opinion, fails to keep an adequate cognitive ability to continue the study and complete the questionnaires * who has any type of severe sleep disturbances related to disorders of the patient other than schizophrenia (e.g., nightmares, nocturnal fears, restless leg syndrome) * or included in another clinical study or trial that can interfere with the normal control of the disease.

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026