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The Impact of Bedtime Screen Use on Sleep Quality and Cognitive Function in Medical Graduate Students: A Cross Sectional Correlation Study

The Impact of Bedtime Screen Use on Sleep Quality and Cognitive Function in Medical Graduate Students: A Cross Sectional Correlation Study

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2500101452
Enrollment
Unknown
Registered
2025-04-25
Start date
2025-05-01
Completion date
Unknown
Last updated
2025-04-28

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

Conditions

None

Interventions

Observation group:None

Sponsors

Southern Medical University Southern Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1.Voluntary signing of informed consent form; 2.Full time medical graduate student at Southern Medical University; 3.Age >= 18 years old;

Exclusion criteria

Exclusion criteria: 1.Have taken the following medications within the past month: antibiotics, probiotics, sleeping pills, laxatives, or intestinal cleansers, etc; 2.Serious gastrointestinal diseases (inflammatory bowel disease, Crohn's disease, gastric cancer, etc.); 3.Recently (within one month) experienced major life events (such as the death of a relative or surgery);

Design outcomes

Primary

MeasureTime frame
Sleep quality assessed through the Pittsburgh Sleep Quality Index (PSQI) total score, as well as cognitive function levels assessed through standardized cognitive tests (including N-back task, Attenti;

Secondary

MeasureTime frame
Severity of insomnia;Daytime sleepiness and circadian preference;Emotion regulation;Gut microbiota is associated with cognition;Effect of interaction;

Countries

China

Contacts

Public ContactBin Zhang

Southern Medical University Southern Hospital

zhang73bin@hotmail.com+86 20 62786319

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026