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A Patient-Centered Mobile Phone App (iHeartU) With a Virtual Human Assistant for Self-Management of Heart Failure: Protocol for a Usability Assessment Study

Lingling Zhang, Sabarish V Babu, Meenu Jindal, Joel E Williams, Ronald W Gimbel

JMIR Res Protoc 2019;8(5):e13502

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Using Facebook Advertising to Recruit Representative Samples: Feasibility Assessment of a Cross-Sectional Survey

Posttests showed a small to medium effect size (V=0.188).

Lance Garrett Shaver, Ahmed Khawer, Yanqing Yi, Kris Aubrey-Bassler, Holly Etchegary, Barbara Roebothan, Shabnam Asghari, Peizhong Peter Wang

J Med Internet Res 2019;21(8):e14021

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Factors Influencing the Smartphone Usage Behavior of Pedestrians: Observational Study on “Spanish Smombies”

Women showed the “Holding” behavior (P<.001, V=0.09) to a greater extent, while men showed the “Headphones” behavior (P<.001, V=0.08) to a greater extent.

César Fernández, María Asunción Vicente, Irene Carrillo, Mercedes Guilabert, José Joaquín Mira

J Med Internet Res 2020;22(8):e19350

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Use of Twitter Among Local Health Departments: An Analysis of Information Sharing, Engagement, and Action

The Cramer’s V statistic was used to test the strength of association between two categorical variables.

Brad L Neiger, Rosemary Thackeray, Scott H Burton, Callie R Thackeray, Jennifer H Reese

J Med Internet Res 2013;15(8):e177

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Implementation of a Web-Based Work-Related Psychological Aftercare Program Into Clinical Routine: Results of a Longitudinal Observational Study

To estimate treatment effects, Cohen d was calculated for the comparison of mean scores with t tests, Cramér V for chi-square tests and the effect size r was calculated for the comparison of median scores with the Mann-Whitney U test.For the weekly assessment

Rüdiger Zwerenz, Carlotta Baumgarten, Ingo Dahn, Nicole Labitzke, Andreas Schwarting, Matthias Rudolph, Peter Ferdinand, Ute Dederichs-Masius, Manfred E Beutel

J Med Internet Res 2019;21(6):e12285

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Wrist-Worn Wearables for Monitoring Heart Rate and Energy Expenditure While Sitting or Performing Light-to-Vigorous Physical Activity: Validation Study

commonly employed for similar evaluations [26,27], was synchronized with the gas analyzer and served as the criterion measure for HR.WearablesThe 4 tested wrist-worn wearables were Apple Watch Series 4, Version 5.1 (Apple Inc, Cupertino, CA); Polar Vantage V,

Peter Düking, Laura Giessing, Marie Ottilie Frenkel, Karsten Koehler, Hans-Christer Holmberg, Billy Sperlich

JMIR Mhealth Uhealth 2020;8(5):e16716

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Diagnosis of Type 2 Diabetes Using Electrogastrograms: Extraction and Genetic Algorithm–Based Selection of Informative Features

Paramasivam Alagumariappan, Kamalanand Krishnamurthy, Sundravadivelu Kandiah, Emmanuel Cyril, Rajinikanth V

JMIR Biomed Eng 2020;5(1):e20932

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Comparison of Two Theory-Based, Fully Automated Telephone Interventions Designed to Maintain Dietary Change in Healthy Adults: Study Protocol of a Three-Arm Randomized Controlled Trial

F&V intake was examined at enrollment and after 3 months of the acquisition intervention. Participants who increased their consumption of F&V by at least one serving/day became eligible for the second phase (maintenance).

Julie A Wright, Lisa M Quintiliani, Gabrielle M Turner-McGrievy, Jeffrey P Migneault, Timothy Heeren, Robert H Friedman

JMIR Res Protoc 2014;3(4):e62

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The Influence of Gender on the Choice of Radiology as a Specialty Among Medical Students in Saudi Arabia: Cross-Sectional Study

Categorical variables, including primary variables, were described using a frequency table and subsequently processed to calculate the statistical significance using the chi-square test and Cramér’s V test.

Ahmed H Abduljabbar, Sara F Alnajjar, Hussein Alshamrani, Lujain F Bashamakh, Hisham Z Alshehri, Waleed M Alqulayti, Mohammad A Wazzan

Interact J Med Res 2020;9(2):e14666

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Serious Gaming Technology in Upper Extremity Rehabilitation: Scoping Review

The extracted information followed a structure defined by IC, EK, and IL, as follows: (i) year of publication, (ii) purpose of the study, (iii) part of the upper limb for rehabilitation, (iv) sensors used, (v) disease that led to the patients’ condition, (vi

Elisavet Koutsiana, Ioannis Ladakis, Dimitris Fotopoulos, Achilleas Chytas, Vassilis Kilintzis, Ioanna Chouvarda

JMIR Serious Games 2020;8(4):e19071

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