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Temporal Stability of Smartphone Use Data: Determining Fundamental Time Unit and Independent Cycle

Recording human behaviors (eg, smartphone use, exercise, and sleep time) via a smartphone is a feasible and popular method in modern society. A previous study has found that smartphone use patterns can reflect social economic status in Rwanda [1].

Yuan-Chien Pan, Hsiao-Han Lin, Yu-Chuan Chiu, Sheng-Hsuan Lin, Yu-Hsuan Lin

JMIR Mhealth Uhealth 2019;7(3):e12171

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Customized-Language Voice Survey on Mobile Devices for Text and Image Data Collection Among Ethnic Groups in Thailand: A Proof-of-Concept Study

Sixteen smartphone tablet devices were distributed to the 16 VHVs. The concept and workflow of the smartphone questionnaires are summarized in Figure 2.

Kasemsak Jandee, Saranath Lawpoolsri, Pimsurang Taechaboonsermsak, Amnat Khamsiriwatchara, Peerawat Wansatid, Jaranit Kaewkungwal

JMIR Mhealth Uhealth 2014;2(1):e7

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Needs and Requirements in the Designing of Mobile Interventions for Patients With Peripheral Arterial Disease: Questionnaire Study

What are the Characteristics of Smartphone Users and Non–Smartphone Users?

Julia Lortz, Jan Simanovski, Tabea Kuether, Ilonka Kreitschmann-Andermahr, Greta Ullrich, Martin Steinmetz, Christos Rammos, Rolf Alexander Jánosi, Susanne Moebus, Tienush Rassaf, Katrin Paldán

JMIR Form Res 2020;4(8):e15669

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A Smartphone App for Improvement of Colonoscopy Preparation (ColoprAPP): Development and Feasibility Study

The smartphone app was developed in cooperation with the University of Applied Sciences, Munich.After the smartphone app was developed, this prospective study was conducted at the II.

Benjamin Walter, Roland Schmid, Stefan von Delius

JMIR Mhealth Uhealth 2017;5(9):e138

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Excessive Smartphone Use and Self-Esteem Among Adults With Internet Gaming Disorder: Quantitative Survey Study

The smartphone overdependence management system is a mobile app–based system, developed in a prior study [28], to identify and examine factors associated with smartphone overdependence that can help prevent and monitor smartphone overreliance.

Hyunmin Kim, In Young Choi, Dai-Jin Kim

JMIR Mhealth Uhealth 2020;8(9):e18505

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Smartphone-Based Self-Assessment of Stress in Healthy Adult Individuals: A Systematic Review

2017, one-third of the world’s population will use a smartphone [10].

Helga Þórarinsdóttir, Lars Vedel Kessing, Maria Faurholt-Jepsen

J Med Internet Res 2017;19(2):e41

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Who Uses Mobile Phone Health Apps and Does Use Matter? A Secondary Data Analytics Approach

A recent study found that 53% of cell phone users owned a smartphone—this translates to 45% of all American adults—and that half of those (or about 1 in 4 Americans) have used their phone to look up health information [7].

Jennifer K Carroll, Anne Moorhead, Raymond Bond, William G LeBlanc, Robert J Petrella, Kevin Fiscella

J Med Internet Res 2017;19(4):e125

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The Validity of Daily Self-Assessed Perceived Stress Measured Using Smartphones in Healthy Individuals: Cohort Study

Inclusion criteria were as follows: individuals older than 18 years, no history of psychiatric illnesses, no first-generation history of psychiatric illnesses, and should have an Android smartphone as their regular smartphone.

Helga Þórarinsdóttir, Maria Faurholt-Jepsen, Henrik Ullum, Mads Frost, Jakob E Bardram, Lars Vedel Kessing

JMIR Mhealth Uhealth 2019;7(8):e13418

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Leveraging Positive Psychology to Support Smoking Cessation in Nondaily Smokers Using a Smartphone App: Feasibility and Acceptability Study

Smartphone apps offer a way of providing behavioral counseling without the need to access the health care system or overcome logistical barriers to present for in-person counseling.

Bettina B Hoeppner, Susanne S Hoeppner, Hannah A Carlon, Giselle K Perez, Eric Helmuth, Christopher W Kahler, John F Kelly

JMIR Mhealth Uhealth 2019;7(7):e13436

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Young People's Response to Six Smartphone Apps for Anxiety and Depression: Focus Group Study

Smartphone apps are increasingly of interest in health contexts because they have the potential to provide both anonymity and accessibility, given the widespread usage of mobile phones by young people [12], with several systematic reviews reporting positive

Sandra Garrido, Daniel Cheers, Katherine Boydell, Quang Vinh Nguyen, Emery Schubert, Laura Dunne, Tanya Meade

JMIR Ment Health 2019;6(10):e14385

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