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Digital Instruments for Reporting of Gastrointestinal Symptoms in Clinical Trials: Comparison of End-of-Day Diaries Versus the Experience Sampling Method

Digital Instruments for Reporting of Gastrointestinal Symptoms in Clinical Trials: Comparison of End-of-Day Diaries Versus the Experience Sampling Method

We recently reported a digital end-of-day symptom diary using a smartphone app in a randomized controlled trial (RCT) on IBS [6]. We observed a very high adherence of almost 88% for the diary smartphone app during a treatment period of 8 weeks. End-of-day diaries in any form, however, are not free of the abovementioned ecological and recall biases owing to their retrospective nature.

Abraham B Beckers, Johanna T W Snijkers, Zsa Zsa R M Weerts, Lisa Vork, Tim Klaassen, Fabienne G M Smeets, Ad A M Masclee, Daniel Keszthelyi

JMIR Form Res 2021;5(11):e31678

Effects of a Personalized Smartphone App on Bowel Preparation Quality: Randomized Controlled Trial

Effects of a Personalized Smartphone App on Bowel Preparation Quality: Randomized Controlled Trial

A new method for informing and instructing patients is via a personalized smartphone app. In 2017, 93% of Dutch adults possessed a smartphone. The highest percentage of smartphone use was found in the younger age groups, but 90% of people aged ≥55 years had access to a smartphone [16]. Therefore, this technology has the potential to improve bowel preparation quality during colonoscopy.

Quirine E W van der Zander, Ankie Reumkens, Bas van de Valk, Bjorn Winkens, Ad A M Masclee, Rogier J J de Ridder

JMIR Mhealth Uhealth 2021;9(8):e26703

Smart Data Collection for the Assessment of Treatment Effects in Irritable Bowel Syndrome: Observational Study

Smart Data Collection for the Assessment of Treatment Effects in Irritable Bowel Syndrome: Observational Study

A personalized username and password were provided for access to the app. Patients were instructed to enable automatic updates of the app to ensure the most recent version was used. If a patient did not own a smartphone or tablet, a device was provided. During the complete pretreatment and treatment periods, an alert system in the planning tool notified the investigators when a patient had failed to submit 3 or more daily entries.

Zsa Zsa R M Weerts, Koert G E Heinen, Ad A M Masclee, Amber B A Quanjel, Bjorn Winkens, Lisa Vork, Paula E L M Rinkens, Daisy M A E Jonkers, Daniel Keszthelyi

JMIR Mhealth Uhealth 2020;8(11):e19696