Intern Health Study: 2020 Cohort Micro-Randomized Trial

Not Applicable

Completed

• Conditions: Telemedicine

• Registration Number: NCT05106439
• Lead Sponsor: University of Michigan

Brief Summary

The aim of this study is to evaluate the efficacy of gamified competition (delivered through a smartphone) for improving the physical activity and sleep of medical interns.

Detailed Description

Due to their high-stress workloads, medical interns tend to have lower sleep and decreased physical activity. The goal of this study is to evaluate the efficacy of gamified competition (delivered through a smartphone) for improving the physical activity and sleep of medical interns. During the study, they are teamed up by programs and institutions and competes with other teams, which aim to motivate them to have more physical activity and sleep duration during their internship year.

The primary aim of this study is to investigate whether introducing competition mechanisms into mobile health (mHealth) interventions can improve a medical intern's activity-related behavioral outcomes: daily step counts and sleep duration. The first secondary aim is to assess the time-varying competition effect on their behavioral outcomes. The second secondary aim is to evaluate how social cooperation (competing within the same institution or program) moderates the effect of competition on behavioral outcomes. The first exploratory aim is to assess the competition effect on study engagement and the second exploratory aim is to evaluate the competition effect on mental outcome, mood score.

Study Timeline

• Study Start: 2020-04-01
• Primary Completion: 2021-06-30
• Study Completion: 2021-06-30
• Status Verified: 2021-10
• Study First Submitted: 2021-10-22
• Study First Submitted QC: 2021-10-22
• Last Update Submitted: 2021-10-22
• Study First Posted: 2021-11-03
• Last Update Posted: 2021-11-03

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 2286

Inclusion Criteria

• Medical intern during the 2020-2021 internship year
• Downloaded app, completed consent and filled out baseline survey prior to June 16th, 2020

Exclusion Criteria

• None

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Primary Outcome Measures

Name	Time	Method
Average daily step count	7 days	Participants' daily step counts are recorded through a Fitbit or an apple watch. High step counts are considered a positive outcome as it indicates more physical activity.; For teams randomized into competition arm and randomized to compete on step count, their average daily step count is compared with the average step count of the opponent team.
Average daily sleep minutes	7 days	Participant's nightly sleep duration (in minutes) is recorded through a Fitbit or an apple watch. High sleep duration is considered a positive outcome.; For teams randomized into competition arm and randomized to compete on sleep duration, their average daily sleep minutes is compared with the average sleep minutes of the opponent team.

Secondary Outcome Measures

Name	Time	Method
Average daily mood score	7 days	Through the study mobile app, participants enter a mood score (scale 1-10) every day of the study. 1 corresponds to lowest mood and 10 corresponds to highest mood

Trial Locations

Locations (1)

University of Michigan, Ann Arbor; 🇺🇸 Ann Arbor, Michigan, United States