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Featured researches published by Aria Zand.


Inflammatory Bowel Diseases | 2015

Presenteeism in Inflammatory Bowel Diseases: A Hidden Problem with Significant Economic Impact

Aria Zand; Welmoed K. van Deen; Elizabeth K. Inserra; Laurin Hall; Ellen Kane; Adriana Centeno; Jennifer M. Choi; Christina Y. Ha; Eric Esrailian; Geert DʼHaens; Daniel W. Hommes

Background:Indirect costs associated with impaired productivity at work (presenteeism) due to inflammatory bowel disease (IBD) are a major contributor to health expenditures. Studies estimating indirect costs in the United States did not take presenteeism into account. We aimed to quantify work limitations and presenteeism and its associated costs in an IBD population to generate recommendations to reduce presenteeism and decrease indirect costs. Methods:We performed a prospective study at a tertiary IBD center. During clinic visits, work productivity, work-related problems and adjustments, quality of life, and disease activity were assessed in patients with IBD. Work productivity and impairment were assessed in a control population as well. Indirect costs associated with lost work hours (absenteeism) and presenteeism were estimated, as well as the effect of disease activity on those costs. Results:Of the 440 included patients with IBD, 35.6% were unemployed. Significantly more presenteeism was detected in patients with IBD (62.9%) compared with controls (27.3%) (P = 0.004), with no significant differences in absenteeism. Patients in remission experienced significantly more presenteeism than controls (54.7% versus 27.3%, respectively, P < 0.01), and indirect costs were significantly higher for remissive patients versus controls (


Clinical Gastroenterology and Hepatology | 2016

Development and Validation of an Inflammatory Bowel Diseases Monitoring Index for Use With Mobile Health Technologies.

Welmoed K. van Deen; Andrea E. van der Meulen-de Jong; Nimisha K. Parekh; Ellen Kane; Aria Zand; Courtney A. DiNicola; Laurin Hall; Elizabeth K. Inserra; Jennifer M. Choi; Christina Y. Ha; Eric Esrailian; Martijn G. van Oijen; Daniel W. Hommes

17,766 per yr versus


Gastroenterology | 2015

Su1230 Remote Monitoring of IBD Disease Activity Using the Mobile Health Index (mHI): A Validation Study

Welmoed K. van Deen; Andrea E. van der Meulen de Jong; Nimisha K. Parekh; Yuna Muyshondt; Ellen Kane; Laurin Eimers; Elizabeth K. Inserra; Aria Zand; Courtney A. DiNicola; Subir Bhatia; Jennifer M. Choi; Christina Y. Ha; Martijn G. van Oijen; Eric Esrailian; Daniel W. Hommes

9179 per yr, respectively, P < 0.03). Only 34.3% had made adjustments to battle work-related problems such as fatigue, irritability, and decreased motivation. Conclusions:Patients with IBD in clinical remission still cope with significantly more presenteeism and work limitations than controls; this translates in higher indirect costs and decreased quality of life. The majority have not made any adjustments to battle these problems.


Journal of Crohns & Colitis | 2017

P354 The effect of value based health care delivery for inflammatory bowel diseases on outcomes of patients

Aria Zand; E. Aredas; N. Duran; Courtney A. DiNicola; Precious Lacey; A. Arenas; Daan W. Hommes


Gastroenterology | 2017

How are Patient Outcomes Impacted by Value Based Health Care Delivery for Inflammatory Bowel Diseases

Aria Zand; Elizabeth Aredas; Natalie E. Duran; Courtney A. DiNicola; Precious Lacey; Alexandria H. Arenas; Daniel W. Hommes


Gastroenterology | 2017

Do We Properly Diagnose Our Celiac Patients? Three Year Follow up in a Celiac Referral Center

Aria Zand; Natalie E. Duran; Eric Esrailian; Daniel W. Hommes; Guy A. Weiss


Gastroenterology | 2017

A Multilevel Quality Improvement Initiative to Improve Colorectal Cancer Screening in a Managed Care Population

Christine Yu; Aria Zand; Eric Esrailian; Daniel W. Hommes; Folasade P. May


Gastroenterology | 2016

Tu2012 The Impact of Inflammatory Bowel Disease On Patients' Caregivers

Aria Zand; Anya Platt; Welmoed K. van Deen; Daniel W. Hommes


Journal of Crohns & Colitis | 2014

DOP089 Measurement of IBD disease activity using home-based e-health technologies

W. van Deen; Jennifer M. Choi; Aria Zand; Christina Y. Ha; Elizabeth K. Inserra; Laurin Eimers; Adriana Centeno; Bennett E. Roth; Daniel Cole; Terri Getzug; Ellen Kane; L. Connoly; Mark Ovsiowitz; Andrew Ho; M.G.H. van Oijen; Eric Esrailian; Daan W. Hommes


Journal of Crohns & Colitis | 2014

P327 The value of social media in inflammatory bowel diseases

Jennifer M. Choi; W. van Deen; L. Nguyen; Aria Zand; M. Berns; Natalie E. Duran; Daan W. Hommes; M.G.H. van Oijen

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Eric Esrailian

University of California

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Jennifer M. Choi

Cedars-Sinai Medical Center

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Ellen Kane

University of California

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Christina Y. Ha

Washington University in St. Louis

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