Changes in Sleep Duration and Blood Pressure Across School Holiday in Teenagers
NCT03895710, Completed, Chinese University of Hong Kong
Trial 8
As registered on ClinicalTrials.gov, in the graph's capture of the registry.
| Field | Value | Source |
|---|---|---|
| Title | Changes in Sleep Duration and Blood Pressure Across School Holiday in Teenagers | ClinicalTrials.gov |
| NCT number | NCT03895710 | ClinicalTrials.gov |
| Status | Completed | ClinicalTrials.gov |
| Enrollment | 204 participants, actual | ClinicalTrials.gov |
| Lead sponsor | Chinese University of Hong Kong | ClinicalTrials.gov |
| Conditions | Sleep Deprivation | ClinicalTrials.gov |
| First posted | 2019-03-29 | ClinicalTrials.gov |
| Last updated | 2022-03-09 | ClinicalTrials.gov |
Registered outcomes 9
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
| List | Outcome | Time frame | Description | Source |
|---|---|---|---|---|
| Primary | Change in ambulatory systolic blood pressure during wakefulness across school holidays | From 1 week before holiday to 1 week after holidays, an average of 4 weeks. | Change in average systolic blood pressure during wakefulness as measured by 24-hour ambulatory blood pressure monitoring | ClinicalTrials.gov |
| Secondary | Changes in other ambulatory BP parameters | From 1 week before holiday to 1 week after holidays, an average of 4 weeks. | Changes in average diastolic blood pressure during wakefulness, systolic blood pressure during sleep and diastolic blood pressure during sleep | ClinicalTrials.gov |
| Secondary | Change in sleep duration | From 1 week before holiday to 1 week after holidays, an average of 4 weeks. | Change in sleep duration measured by actigraphy | ClinicalTrials.gov |
| Secondary | Change in vigilance | From 1 week before holiday to 1 week after holidays, an average of 4 weeks. | Changes in vigilance measured by Conners' Continuous Performance Test (CPT) | ClinicalTrials.gov |
| Secondary | Change in impulsivity | From 1 week before holiday to 1 week after holidays, an average of 4 weeks. | Change in impulsivity measured by Conners' Continuous Performance Test (CPT) | ClinicalTrials.gov |
| Secondary | Change in trail-making test score | From 1 week before holiday to 1 week after holidays, an average of 4 weeks. | Change in executive function measured by trail-making test | ClinicalTrials.gov |
| Secondary | Change in Stroop test score | From 1 week before holiday to 1 week after holidays, an average of 4 weeks. | Change in executive function measured by Stroop test (Victoria Version) | ClinicalTrials.gov |
| Secondary | Change in non-verbal reasoning | From 1 week before holiday to 1 week after holidays, an average of 4 weeks. | Change in non-verbal reasoning measured by Raven's Standard Progressive Matrices Test | ClinicalTrials.gov |
| Secondary | Change in visual-motor coordination | From 1 week before holiday to 1 week after holidays, an average of 4 weeks. | Change in visual-motor coordination tested by Grooved Pegboard | ClinicalTrials.gov |
Outcomes 0
Each outcome the trial posted results for, in ClinicalTrials.gov's words.
| Type | Outcome | Time frame | Population | Units | Measured as | Source |
|---|
Results by group 0
Each measurement the trial posted, group by group, in the words and numbers it posted.
| Outcome | Group | Category | Value | Spread | Units | Source |
|---|
Participant flow 0
How many started, completed or left each group, period by period.
| Period | Milestone | Group | Participants | Units counted | Source |
|---|
Adverse events 0
Each adverse event the trial posted, group by group: the participants affected out of those at risk.
| Type | Event | Organ system | Group | Affected | At risk | Events | Source |
|---|
Adverse event totals 0
The totals the trial posted for each group.
| Total | Group | Affected | At risk | Source |
|---|
Papers 0
The papers the trial lists on ClinicalTrials.gov.
| PMID | Listed as | Source |
|---|
Grants 0
The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.
| Project | Title | Principal investigators | Organization | Funder | Fiscal years | Source |
|---|
Trial comparisons 0
Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.
| Comparison | Source |
|---|
Tests 5
The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.
| Test | Named as | Source |
|---|---|---|
| Continuous Performance Test | Secondary outcome | ConductCognition |
| Matrix Reasoning | Secondary outcome | ConductCognition |
| Stroop Color-Word Test | Secondary outcome | ConductCognition |
| Trail Making Test A | Secondary outcome | ConductCognition |
| Trail Making Test B | Secondary outcome | ConductCognition |
Source 5
| Field | Value | Source |
|---|---|---|
| Release | trials-2026-11-12-0.4.0 | ClinicalTrials.gov |
| Release manifest SHA-256 | 0f4a8d8c48aee2a7573ae0fa94ecbeab70c1adbe449bbc95c424bc7d3e97b9d4 | ClinicalTrials.gov |
| Registry capture | 2026-11-12 | ClinicalTrials.gov |
| Results copy, AACT | 2026-03-23 | ClinicalTrials.gov |
| NIH clinical studies file | 2026-11-13 | ClinicalTrials.gov |
Release trials-2026-11-12-0.4.0
ClinicalTrials.gov's posted results, through CTTI's AACT: ClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299 ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.
ClinicalTrials.gov: none stated ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.
NIH RePORTER's clinical studies and project files: Public domain (NIH RePORTER)