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Operational Trial of Dayzz App

Operational Trial of Dayzz App

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04224285
Enrollment
1355
Registered
2020-01-13
Start date
2020-08-12
Completion date
2021-09-30
Last updated
2022-06-22

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

Conditions

Sleep Initiation and Maintenance Disorders

Keywords

sleep, sleep deficiency, workplace health, occupational health, workplace health promotion, mobile health, mHealth

Brief summary

Sleep deficiency is a hidden cost of our 24-7 society, with 70% of Americans admitting that they routinely obtain insufficient sleep, 30% of US workers report sleeping less than 6 hours per night, and it is estimated that 50-70 million individuals have a sleep disorder. Undiagnosed and untreated sleep disorders are associated with poor health outcomes for the individual and generate substantial costs for the employer. Diminished alertness resulting from sleep deficiency or undiagnosed and untreated sleep disorders contributes to absenteeism, presenteeism (diminished work performance at work), health care expenditure, occupational injuries, workplace accidents, and commute-related motor vehicle crashes; all of which result in substantial direct and indirect costs. The investigators have shown that adverse impacts on employees and employers can be mitigated through a sleep health education and sleep disorder screening program which have been implemented in a variety of industries. Further, smartphone apps are becoming popular. Dayzz has created a personalized sleep training app that evaluates sleep issues and offers a holistic sleep improvement solution. It is unique in that the sleep app uses evidence-based, big-data-based algorithms to provide personalized sleep training plans. The sleep solutions are tailored to the individual user and leverages unique motivational strategies and continuous supportive messaging. The investigators hypothesize that the Dayzz app, offering a personalized, scientifically based sleep training plan, might further promote improved health, safety and well-being. This clinical trial will implement the sleep health education and sleep disorders screening program in combination with the Dayzz app.

Detailed description

Specifically, the investigators will test the hypotheses that: Primary Aim 1: Early Dayzz participants who use the app will report positive changes in sleep behavior as compared to the Late Dayzz participants. Primary Aim 2: Early Dayzz participants who use the app will have increased sleep duration and sleep quality as compared to the Late Dayzz participants. Secondary Aim 1: Early Dayzz participants who use the app will have fewer unscheduled absences and higher performance/productivity as compared to the Late Dayzz participants. Secondary Aim 2: Early Dayzz participants who use the app will have improved mood and alertness and increased energy as compared to the Late Dayzz participants. Secondary Aim 3: Early Dayzz participants who use the app will report fewer adverse health and safety outcomes as compared to the Late Dayzz participants. Secondary Aim 4: Early Dayzz participants who use the app will have lower health care costs over a 9-month follow-up period as compared to the Late Dayzz participants.

Interventions

OTHERDayzz app

Personalized sleep training app that evaluates sleep issues and offers a complete, holistic sleep improvement solution

Sponsors

Brigham and Women's Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
NONE

Intervention model description

wait list control

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Employee of Harvard University or Harvard-affiliated institution or hospital. * Nominally work a day schedule. * Own and use a smart phone. * Regularly use a smart phone app (i.e., once per week).

Exclusion criteria

* Regularly work evening, night or rotating shifts. * Pregnant or breast-feeding.

Design outcomes

Primary

MeasureTime frameDescription
Primary Aim 1: Sleep Behavior 1Up to 9 monthsSleep behaviors (e.g., sleep on a consistent schedule, sleep in later) will be self-reported on the end-of-study survey. 100 mm visual analog scales anchored with Not at all at 0 and All the time at 100 will be used. Higher scores indicate a better outcome.
Primary Aim 1: Sleep Behavior 21 week of daily eDiary in both Month 1 and Month 3Sleep behaviors will also be tracked on the eDiary (e.g., consistent sleep schedule, as calculated with the regularity index). The Sleep Regularity Index calculates the percentage probability of an individual being in the same state (asleep vs. awake) at any two time-points 24 h apart, averaged across the study. The index is scaled so that an individual who sleeps and wakes at exactly the same times each day scores 100 (better outcome), whereas an individual who sleeps and wakes at random scores 0 (worse outcome).
Primary Aim 1: Sleep Behavior 3Up to 9 monthsOutcomes in sleep behaviors will be further detailed by self-report by completing a checklist of potential positive changes. Participants will select the healthy sleep changes they have made while completing the protocol, During this study, have you changed any sleep-related behaviors to improve your sleep since participating in the study (check all that apply)? Higher numbers of positive changes selected indicate a better outcome.
Primary Aim 2: Sleep Duration1 week of daily eDiary in both Month 1 and Month 3Sleep duration will be reported in the eDiary.
Primary Aim 2: Sleep QualityUp to 9 monthsSleep quality will be measured with the Pittsburgh Sleep Quality Index. The Pittsburgh Sleep Quality Index (PSQI) is an effective instrument used to measure the quality and patterns of sleep in adults. It differentiates poor from good sleep by measuring seven domains: subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbances, use of sleep medication, and daytime dysfunction over the last month. The participant self rates each of these seven areas of sleep. Scoring of the answers is based on a 0 to 3 scale, whereby 3 reflects the negative extreme on the Likert Scale. A global sum of 5or greater indicates a poor sleeper. Minimum Score = 0 (better outcome); Maximum Score = 21 (worse outcome).

Secondary

MeasureTime frameDescription
Secondary Aim 2: Alertness - Monthly questionnaireUp to 9 monthsAlertness will be self-reported via a 7-point Likert scale anchored at 0 with Very poor and 7 with Very good. Higher numbers indicate better outcome.
Secondary Aim 2: Alertness - eDiary1 week of daily eDiary in both Month 1 and Month 3Alertness will be self-reported via 100 mm visual analog scales anchored with Sleepy at 0 and Alert at 100. Higher scores indicate a better outcome.
Secondary Aim 2: Energy - Monthly questionnaireUp to 9 monthsEnergy will be self-reported via a 7-point Likert scale anchored at 0 with Very low and 7 with Very high. Higher numbers indicate better outcome.
Secondary Aim 2: Energy - eDiary1 week of daily eDiary in both Month 1 and Month 3Energy will be self-reported via 100 mm visual analog scales anchored with Sluggish at 0 and Energetic at 100. Higher scores indicate a better outcome.
Secondary Aim 1: AbsenteeismUp to 9 monthsUnscheduled absences and disability day usage will be collected by self-report on the monthly questionnaires.
Secondary Aim 3: Adverse Health and Safety Outcomes - Near Crash IncidentsUp to 9 monthsNear crash incidents will be self-reported on the monthly questionnaires (count per month).
Secondary Aim 3: Adverse Health and Safety Outcomes - InjuriesUp to 9 monthsInjuries will be self-reported on the monthly questionnaires (count per month).
Secondary Aim 3: Adverse Health and Safety Outcomes - Attentional FailuresUp to 9 monthsAttentional failures (nodding off) will be self-reported on the monthly questionnaires (count per month).
Secondary Aim 4: Health Care CostsUp to 9 monthsHealthcare utilization will be reported on monthly surveys and costs estimated from the reported usages.
Secondary Aim 3: Adverse Health and Safety Outcomes - Motor Vehicle CrashesUp to 9 monthsMotor vehicle crashes will be self-reported on the monthly questionnaires (count per month).
Secondary Aim 1: Performance/Productivity - AbsenteeismUp to 9 monthsWorld Health Organization Health Work Performance Questionnaire Short Form (HPQ) will be used to assess performance/productivity via 4-week absolute absenteeism. Absenteeism is scored in terms of hours lost per month, which is to say that a high score indicates a higher amount of absenteeism. The measure of absolute absenteeism is expressed in raw hours, with a negative lower bound (if the person works more than expected) and an upper bound equal to the number of hours the respondent is expected to work.
Secondary Aim 1: Performance/Productivity - PresenteeismUp to 9 monthsWorld Health Organization Health Work Performance Questionnaire Short Form (HPQ) will be used to assess performance/productivity via absolute presenteeism. Presenteeism has a lower bound of 0 (total lack of performance during time on the job) and an upper bound of 100 (no lack of performance during time on the job). A higher score indicates a lower amount of lost performance.
Secondary Aim 2: Mood - Monthly questionnaireUp to 9 monthsMood will be self-reported via a 7-point Likert scale anchored at 0 with Very poor and 7 with Very good. Higher numbers indicate better outcome.
Secondary Aim 2: Mood - eDiary1 week of daily eDiary in both Month 1 and Month 3Mood will be self-reported via 100 mm visual analog scales anchored with Sad at 0 and Happy at 100. Higher scores indicate a better outcome.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 19, 2026