ArticleInternational journal of environmental research and public health2019
Methodology to Derive Objective Screen-State from Smartphones: A SMART Platform Study.
Article in International journal of environmental research and public health, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
16 citing papers in PubMed, 27 citations in OpenAlex.
- 24-h smartphone usage patterns in university students using high-granularity tracking.Scientific reports · 2026Article
- Strengthening Culturally Responsive Mental Health Supports for Crises Preparedness: Lessons From Indigenous Educator's Experiences During COVID-19 Pandemic.The Journal of school health · 2026Article
- Recreational Screen Time at University Entry and Mental Health and Well-Being Over First Year: U-Flourish Student Well-Being Research: Temps d'écran à des fins de divertissement au moment de l'entrée à l'université, santé mentale et bien-être au cours de la première année : programme de recherche U-Flourish sur le bien-être des étudiants.Canadian journal of psychiatry. Revue canadienne de psychiatrie · 2026Article
- The Association Between Recreational Cannabis Use and 24-hour Movement Behaviours: Perceptions of Youth Citizen Scientists.Journal of adolescence · 2025Article
- How can digital citizen science approaches improve ethical smartphone use surveillance among youth: Traditional surveys versus ecological momentary assessments.PLOS digital health · 2024Article
- Is excessive smartphone use associated with weight status and self-rated health among youth? A smart platform study.BMC public health · 2023Article
- Associations between digital media use and lack of physical exercise among middle-school adolescents in Korea.Epidemiology and health · 2023Article
- Article
- Do associations between suicide ideation and its correlates (substance use, anxiety, and depression) differ according to victimization type among youth? A Smart platform study.Preventive medicine reports · 2022Article
- The Importance of Physical Activity to Augment Mood during COVID-19 Lockdown.International journal of environmental research and public health · 2022Article
- Cannabis use and suicidal ideation among youth: Can we democratize school policies using digital citizen science?PloS one · 2022Article
- Preserving rural school health during the COVID-19 pandemic: Indigenous citizen scientist perspectives from a qualitative study.AIMS public health · 2022Article
- Sense of Presence and Subjective Well-Being in Online Pet Watching: The Moderation Role of Loneliness and Perceived Stress.International journal of environmental research and public health · 2020Article
- Is adherence to the 24-hour movement guidelines associated with a reduced risk of adiposity among children and adolescents?BMC public health · 2020Article
- Associations of Objectively-Assessed Smartphone Use with Physical Activity, Sedentary Behavior, Mood, and Sleep Quality in Young Adults: A Cross-Sectional Study.International journal of environmental research and public health · 2020Article
- The SMART Framework: Integration of Citizen Science, Community-Based Participatory Research, and Systems Science for Population Health Science in the Digital Age.JMIR mHealth and uHealth · 2019Article
Corrections and comments
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Authors and funding
2 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Time on screens (screen time) on multiple digital devices (computers, mobile phones, tablets, television screens, etc.) due to varied motivations (work, leisure, entertainment, gaming, etc.) has become an integral part of population behaviour. However, a significant evidence gap exists in screen time accumulated over ubiquitous mobile devices such as smartphones. This study aimed to develop an accurate, reliable and replicable methodology to derive objective screen time (i.e., screen-state) from all types of citizen-owned smartphones. A convenience sample of 538 adults (≥18 years) from two largest urban centres in Saskatchewan, Canada (Regina and Saskatoon) was recruited in 2017 and 2018. Participants used a custom-built smartphone application to provide objective and subjective data. A novel methodology was developed to derive objective screen-state, and these data were compared with subjective measures. The findings showed that objective screen-state from smartphones can be derived and assessed across a range of cut-points that take into consideration varied measurement errors. When objective measures were compared with subjective reporting, the results indicated that participants consistently underreported screen time. This study not only provides a methodology to derive objective screen-state from ubiquitous mobile devices such as smartphones but also emphasises the need to capture context via subjective measures.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.