title: A web-based dietary intervention for people with type 2 diabetes: development, implementation, and evaluation.
abstract: BACKGROUND
  Diabetes is becoming a very important health issue in rapidly developing nations and there is an urgent need to improve overall diabetes self-management education in these countries. Although e-health is an emerging theme, only a few successful web-based studies on diabetes self-management have been reported.
  
  
  OBJECTIVE
  We describe the development, implementation, and process evaluation of an Internet-delivered dietary intervention program (myDIDeA) for diabetic patients in a developing country.
  
  
  METHODS
  Specific dietary components to be included in the intervention module were first identified through a comprehensive review of literature and guidelines. The lesson plans and the study website were then developed based on the evidence, Transtheoretical Model's Stages of Change and user-centered design approach. Finally, the effectiveness of the website was tested through a randomized-controlled trial to promote dietary change in patients with type 2 diabetes. The participants in the intervention group (n = 66) were given access to myDIDeA for 6 months. Process evaluation in form of intervention adherence and program reception were conducted at post intervention.
  
  
  RESULTS
  The response rate for the process evaluation was 89%. On average, each participant logged in at least once for each lesson plan and spent almost 12 min on the site. The participants' content satisfaction, acceptability, and usability scores were satisfactory. The primary outcome of the trial, Dietary Knowledge, Attitude, and Behavior score was strongly correlated with content satisfaction (r = 0.826, p < 0.001), acceptability (r = 0.793, p < 0.001) and usability of the website (r = 0.724, p < 0.001), and moderately correlated with frequency of log-in (r = 0.501, p < 0.05) and duration spent in the website (r = 0.399, p < 0.05).
  
  
  CONCLUSIONS
  The process evaluation of myDIDeA demonstrates its feasibility, and future studies should identify the possibility of extending the use of Internet-based intervention programs to other health behaviors and issues related to self-management of chronic conditions. In addition, interactivity, peer support via social media, and other means to stimulate the interest of participants can be explored.
authors.affiliation: Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Petaling Jaya, Malaysia, amutha80@gmail.com.
authors.forename: Amutha
authors.initials: A
authors.lastname: Ramadas
authors.forename: Carina Ka Yee
authors.initials: CK
authors.lastname: Chan
authors.forename: Brian
authors.initials: B
authors.lastname: Oldenburg
authors.forename: Zanariah
authors.initials: Z
authors.lastname: Hussien
authors.forename: Kia Fatt
authors.initials: KF
authors.lastname: Quek
mesh_terms: D002908:Chronic Disease; D003924:Diabetes Mellitus, Type 2 / Q000178:diet therapy*; D004032:Diet; D005260:Female; D015438:Health Behavior; D006801:Humans; D020407:Internet; D008297:Male; D008875:Middle Aged; D012648:Self Care / Q000379:methods