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https://hdl.handle.net/2440/132791
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Type: | Journal article |
Title: | Design and rationale of the Cardiovascular Health and Text Messaging (CHAT) Study and the CHAT-Diabetes Mellitus (CHAT-DM) Study: two randomised controlled trials of text messaging to improve secondary prevention for coronary heart disease and diabetes |
Author: | Huo, X. Spatz, E.S. Ding, Q. Horak, P. Zheng, X. Masters, C. Zhang, H. Irwin, M.L. Yan, X. Guan, W. Li, J. Li, X. Spertus, J.A. Masoudi, F.A. Krumholz, H.M. Jiang, L. |
Citation: | BMJ Open, 2017; 7(12):1-11 |
Publisher: | BMJ Publishing Group |
Issue Date: | 2017 |
ISSN: | 2044-6055 2044-6055 |
Statement of Responsibility: | Xiqian Huo, Erica S Spatz, Qinglan Ding, Paul Horak, Xin Zheng, Claire Masters ... et al. |
Abstract: | INTRODUCTION:Mobile health interventions have the potential to promote risk factor management and lifestyle modification, and are a particularly attractive approach for scaling across healthcare systems with limited resources. We are conducting two randomised trials to evaluate the efficacy of text message-based health messages in improving secondary coronary heart disease (CHD) prevention among patients with or without diabetes. METHODS AND ANALYSIS:The Cardiovascular Health And Text Messaging (CHAT) Study and the CHAT-Diabetes Mellitus (CHAT-DM) Study are multicentre, single-blind, randomised controlled trials of text messaging versus standard treatment with 6 months of follow-up conducted in 37 hospitals throughout 17 provinces in China. The intervention group receives six text messages per week which target blood pressure control, medication adherence, physical activity, smoking cessation (when appropriate), glucose monitoring and lifestyle recommendations including diet (in CHAT-DM). The text messages were developed based on behavioural change techniques, using models such as the information-motivation-behavioural skills model, goal setting and provision of social support. A total sample size of 800 patients would be adequate for CHAT Study and sample size of 500 patients would be adequate for the CHAT-DM Study. In CHAT, the primary outcome is the change in systolic blood pressure (SBP) at 6 months. Secondary outcomes include a change in proportion of patients achieving a SBP <140 mm Hg, low-density lipoprotein cholesterol (LDL-C), physical activity, medication adherence, body mass index (BMI) and smoking cessation. In CHAT-DM, the primary outcome is the change in glycaemic haemoglobin (HbA1C) at 6 months. Secondary outcomes include a change in the proportion of patients achieving HbA1C<7%, fasting blood glucose, SBP, LDL-C, BMI, physical activity and medication adherence. ETHICS AND DISSEMINATION:The central ethics committee at the China National Center for Cardiovascular Disease and the Yale University Institutional Review Board approved the CHAT and CHAT-DM studies. Results will be disseminated via usual scientific forums including peer-reviewed publications. TRIAL REGISTRATION NUMBER:CHAT (NCT02888769) and CHAT-DM (NCT02883842); Pre-results. |
Keywords: | Humans Coronary Disease Diabetes Mellitus, Type 1 Diabetes Mellitus, Type 2 Exercise Self Care Risk Factors Single-Blind Method Motivation Life Style Telemedicine Blood Pressure Research Design Adolescent Adult Aged Aged, 80 and over Middle Aged China Female Male Medication Adherence Secondary Prevention Young Adult Text Messaging Glycated Hemoglobin |
Rights: | © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.This is an Open Access article distributed in accordance with the terms of the Creative Commons Attribution (CC BY 4.0) license, which permits others to distribute, remix, adapt and build upon this work, for commercial use, provided the original work is properly cited. See: http://creativecommons.org/licenses/by/4.0/ |
DOI: | 10.1136/bmjopen-2017-018302 |
Published version: | http://dx.doi.org/10.1136/bmjopen-2017-018302 |
Appears in Collections: | Medicine publications |
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hdl_132791.pdf | Published version | 595.52 kB | Adobe PDF | View/Open |
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