Trial reportJAMA dermatology2015
Evaluation of immediate and 12-week effects of a smartphone sun-safety mobile application: a randomized clinical trial.
Trial report in JAMA dermatology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 4 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
The trial behind it
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
29 citing papers in PubMed, 4 syntheses or guidelines pooled it, 64 citations in OpenAlex.
- Dropout Rate in Digital Health Interventions for the Prevention of Skin Cancer: Systematic Review, Meta-analysis, and Metaregression.Journal of medical Internet research · 2022Pooled it
- Systematic review of context-aware digital behavior change interventions to improve health.Translational behavioral medicine · 2021Pooled it
- Awareness, understanding, use, and impact of the UV index: A systematic review of over two decades of international research.Preventive medicine · 2019Pooled it
- Mobile App-Based Health Promotion Programs: A Systematic Review of the Literature.International journal of environmental research and public health · 2018Pooled it
- The Impact of a Mobile Support Group on Distress and Physical Activity in Breast Cancer Survivors: Randomized, Parallel-Group, Open-Label, Controlled Trial.Journal of medical Internet research · 2023Trial
- Advancing Survivors Knowledge (ASK Study) of Skin Cancer Surveillance After Childhood Cancer: A Randomized Controlled Trial in the Childhood Cancer Survivor Study.Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2023Trial
- Trial
- Sunscreen Use Barriers in White U.S. Adults: Gender, Generation, and Skin Phototype Differences.AJPM focus · 2026Article
- Evaluating mobile apps for sun protection: content analysis and user preferences in a two-part study.Health psychology and behavioral medicine · 2025Article
- Technology-Based Interventions to Reduce Sugar-Sweetened Beverages among Adolescents: A Scoping Review.International journal of environmental research and public health · 2023Article
- Digital interventions for promoting sun protection and skin self-examination behaviors: A systematic review.Preventive medicine reports · 2022Review
- Development and usability evaluation of an application for patients with glaucoma.International ophthalmology · 2021Article
- Effect of Smartphone App's Intervention on Consumers' Knowledge, Attitude, Practice, and Perception of Food Poisoning Prevention When Dining Out at Selected Rural Areas in Terengganu.International journal of environmental research and public health · 2021Article
- Reactivity to UV Radiation Exposure Monitoring Using Personal Exposure Devices for Skin Cancer Prevention: Longitudinal Observational Study.JMIR mHealth and uHealth · 2021Observational
- Real-Time UV Measurement With a Sun Protection System for Warning Young Adults About Sunburn: Prospective Cohort Study.JMIR mHealth and uHealth · 2021Article
- Solar Ultraviolet Exposure in Individuals Who Perform Outdoor Sport Activities.Sports medicine - open · 2020Review
- [Actinic keratoses : Current guideline and practical recommendations].Der Hautarzt; Zeitschrift fur Dermatologie, Venerologie, und verwandte Gebiete · 2020Review
- Not part of my routine: a qualitative study of use and understanding of UV forecast information and the SunSmart app.BMC public health · 2019Article
- Qualitative and Quantitative Evaluation of the Make Safe Happen App: Mobile Technology-Based Safety Behavior Change Intervention for Parents.JMIR pediatrics and parenting · 2019Article
- Exercise Promotion and Distress Reduction Using a Mobile App-Based Community in Breast Cancer Survivors.Frontiers in oncology · 2019Article
Corrections and comments
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Authors and funding
7 authors at 4 institutions in 1 country.
Funding
Abstract
importanceMobile applications on smartphones can communicate a large amount of personalized, real-time health information, including advice on skin cancer prevention, but their effectiveness may be affected by whether recipients can be convinced to use them.
objectiveTo evaluate a smartphone mobile application (Solar Cell) delivering real-time advice about sun protection for a second time in a randomized clinical trial. DESIGN, SETTING, AND
participantsA previous trial conducted in 2012 used a randomized pretest-posttest design. For the present trial, we collected data from a volunteer sample of 202 adults 18 years or older who owned a smartphone. Participants were recruited nationwide through online promotions. Screening procedures and a 3-week run-in period were added to increase the use of the mobile application. We conducted follow-ups at 3 and 8 weeks after randomization to examine the immediate and the longer-term effects of the intervention.
interventionsUse of the mobile application. The application gave feedback on sun protection (ie, sun-safety practices and the risk for sunburn) and alerted users to apply or to reapply sunscreen and to get out of the sun. The application also displayed the hourly UV Index and vitamin D production based on the forecast UV Index, time, and location. MAIN OUTCOMES AND MEASURES: Percentage of days with the use of sun protection, time spent outdoors in the midday sun (days and hours), and the number of sunburns in the last 3 months.
resultsParticipants in the intervention group used wide-brimmed hats more at 7 weeks than control participants (23.8% vs 17.4%; F = 4.07; P = .045). Women who used the mobile application reported using all sun protection combined more than men (46.4% vs 43.3%; F = 1.49; P = .04), whereas men and older individuals reported less use of sunscreen (32.7% vs 35.5%; F = 5.36; P = .02) and hats (15.6% vs 17.9%; F = 4.72; P = .03). CONCLUSIONS AND RELEVANCE: The mobile application initially appeared to confer weak improvement of sun protection. Use of the mobile application was greater than in a previous trial and was associated with greater sun protection, especially among women. Strategies to increase the use of the mobile application are needed if the application is to be deployed effectively to the general adult population.
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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.