Abstract:
BACKGROUND:The Internet is widely available and commonly used for health information; therefore, Web-based weight loss programs could provide support to large parts of the population in self-guided weight loss. Previous studies showed that Web-based weight loss interventions can be effective, depending on the quality of the program. The most effective program tools are visual progress charts or tools for the self-monitoring of weight, diet, and exercises. KiloCoach, a commercial program currently available in German-speaking countries, incorporates these features. A previous investigation showed that the program effectively supports users in losing weight. OBJECTIVE:We investigated weight loss dynamics stratified by weight loss success after 6-month use of KiloCoach. Furthermore, we analyzed possible associations between intensity of program use and weight loss. The results are intended for tailoring user recommendations for weight-loss Internet platforms. METHODS:Datasets of KiloCoach users (January 1, 2008 to December 31, 2011) who actively used the platform for 6 months or more were assigned to this retrospective analysis. Users (N=479) were 42.2% men, mean age of 44.0 years (SD 11.7), with a mean body mass index (BMI) of 31.7 kg/m² (SD 3.2). Based on the weight loss achieved after 6 months, 3 success groups were generated. The unsuccessful group lost <5%, the moderate success group lost 5%-9.9%, and the high success group lost ≥10% of their baseline body weight. At baseline, the unsuccessful (n=261, 54.5%), moderate success (n=133, 27.8%), and high success (n=85, 17.8%) groups were similar in age, weight, BMI, and gender distribution. RESULTS:After 6 months, the unsuccessful group lost 1.2% (SD 2.4), the moderate success group lost 7.4% (SD 1.5), and the high success group lost 14.2% (SD 3.8) of their initial weight (P<.001). Multivariate regression showed that early weight loss (weeks 3-4), the total number of dietary protocols, and the total number of weight entries were independent predictors for 6-month weight reduction (all P<.001) explaining 52% of the variance in weight reduction. Sensitivity analysis by baseline carried forward method confirmed all independent predictors of 6-month weight loss and reduced the model fit by only 11%. The high success group lost weight faster and maintained weight loss more efficiently than the other groups (P<.001). Early weight loss was associated with weight maintenance after 1 year and 2 years (both P<.001). Weight dynamics did not differ between men and women over 6 months when adjusted for baseline and usage parameters (P=.91). The percentage of male long-term users was unusually high (42.2%). CONCLUSIONS:Our results suggest that early weight loss and close program adherence (ie, 5 dietary protocols per week and weekly entering of current weight), especially in the early phase of program usage, can improve weight loss outcome.
journal_name
J Med Internet Resjournal_title
Journal of medical Internet researchauthors
Postrach E,Aspalter R,Elbelt U,Koller M,Longin R,Schulzke JD,Valentini Ldoi
10.2196/jmir.2648subject
Has Abstractpub_date
2013-10-14 00:00:00pages
e219issue
10eissn
1439-4456issn
1438-8871pii
v15i10e219journal_volume
15pub_type
杂志文章abstract:BACKGROUND:The increasing use of Web-based solutions for health prevention and promotion presents opportunities to improve self-management and adherence to guideline-based therapy for individuals with type 2 diabetes (T2DM). Despite promising preliminary evidence, many users stop using Web-based solutions due to the bu...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/jmir.8712
更新日期:2018-03-16 00:00:00
abstract:BACKGROUND:Ethnic minority populations exhibit disproportionately high rates of type 2 diabetes mellitus (T2DM). Electronic health tools have the potential to facilitate the cultural adaptation and tailoring of T2DM education to improve the knowledge and management of diabetes mellitus (DM). OBJECTIVE:This study aimed...
journal_title:Journal of medical Internet research
pub_type: 杂志文章,随机对照试验
doi:10.2196/13674
更新日期:2019-10-16 00:00:00
abstract:BACKGROUND:Qualitative research methods are increasingly being used across disciplines because of their ability to help investigators understand the perspectives of participants in their own words. However, qualitative analysis is a laborious and resource-intensive process. To achieve depth, researchers are limited to ...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/jmir.9702
更新日期:2018-06-29 00:00:00
abstract:BACKGROUND:Approximately 80% of internet users access health information online and patients with chronic illnesses especially rely on internet-based resources. YouTube ranks second among the most accessed websites worldwide and hosts an increasing number of videos with medical information. However, their quality is so...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/11935
更新日期:2019-01-16 00:00:00
abstract:BACKGROUND:Chronic obstructive pulmonary disease (COPD) is now the fourth leading cause of death in the world, and it continues to increase in developing countries. The World Health Organization expects COPD to be the third most common cause of death in the world by 2020. Effective and continuous postdischarge care can...
journal_title:Journal of medical Internet research
pub_type: 杂志文章,随机对照试验
doi:10.2196/jmir.6743
更新日期:2017-07-21 00:00:00
abstract:BACKGROUND:Over the last two decades, patient review websites have emerged as an essential online platform for doctor ratings and reviews. Recent studies suggested the significance of such websites as a data source for patients to choose doctors for healthcare providers to learn and improve from patient feedback and to...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/18652
更新日期:2020-07-07 00:00:00
abstract:BACKGROUND:The digital revolution has led to a boom in the number of available online health care resources. To navigate these resources successfully, digital literacy education is required. Learners who can evaluate the reliability and validity of online health care information are likely to be more effective at avoid...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/15177
更新日期:2020-02-26 00:00:00
abstract:BACKGROUND:The Internet has the potential to provide large populations with individual health promotion advice at a relatively low cost. Despite the high rates of Internet access, actual reach by Web-based interventions is often disappointingly low, and differences in use between demographic subgroups are present. Furt...
journal_title:Journal of medical Internet research
pub_type: 杂志文章,随机对照试验
doi:10.2196/jmir.2229
更新日期:2012-12-17 00:00:00
abstract:BACKGROUND:The ability to identify, screen, and enroll potential research participants in an efficient and timely manner is crucial to the success of clinical trials. In the age of the internet, researchers can be confronted with large numbers of people contacting the program, overwhelming study staff and frustrating p...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/11049
更新日期:2018-11-01 00:00:00
abstract:BACKGROUND:In a recent uncontrolled trial of a new therapist-assisted Web-based treatment of adolescent victims of sexual abuse, the treatment effects were found to be promising. However, the study suffered a large pretreatment withdrawal rate that appeared to emanate from reluctance among the participants to disclose ...
journal_title:Journal of medical Internet research
pub_type: 杂志文章,随机对照试验
doi:10.2196/jmir.1455
更新日期:2010-12-19 00:00:00
abstract:BACKGROUND:The COVID-19 pandemic has caused major disruptions worldwide since March 2020. The experience of the 1918 influenza pandemic demonstrated that decreases in the infection rates of COVID-19 do not guarantee continuity of the trend. OBJECTIVE:The aim of this study was to develop a precise spread model of COVID...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/19907
更新日期:2020-09-09 00:00:00
abstract:BACKGROUND:By 2035, it is expected that older adults (aged 65 years and older) will outnumber children and will represent 78 million people in the US population. As the aging population continues to grow, it is critical to reduce disparities in their representation in medical research. OBJECTIVE:This study aimed to de...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/15035
更新日期:2019-10-29 00:00:00
abstract:BACKGROUND:Self-management plays an important role in maintaining good control of diabetes mellitus, and mobile phone interventions have been shown to improve such self-management. The Health Promotion Board of Singapore has created a caloric-monitoring mobile health app, the "interactive Diet and Activity Tracker" (iD...
journal_title:Journal of medical Internet research
pub_type: 临床试验,杂志文章
doi:10.2196/jmir.3938
更新日期:2015-02-03 00:00:00
abstract:BACKGROUND:Given the substantial improvements in cancer screening and cancer treatment in the United States, millions of adult cancer survivors live for years following their initial cancer diagnosis and treatment. However, latent side effects can occur and some symptoms can be alleviated or managed effectively via cha...
journal_title:Journal of medical Internet research
pub_type: 杂志文章,随机对照试验
doi:10.2196/jmir.3020
更新日期:2014-02-24 00:00:00
abstract:BACKGROUND:In recent years, online physician-rating websites have become prominent and exert considerable influence on patients' decisions. However, the quality of these decisions depends on the quality of data that these systems collect. Thus, there is a need to examine the various data quality issues with physician-r...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/15916
更新日期:2020-09-28 00:00:00
abstract:BACKGROUND:Efficiently sharing health data produced during standard care could dramatically accelerate progress in cancer treatments, but various barriers make this difficult. Not sharing these data to ensure patient privacy is at the cost of little to no learning from real-world data produced during cancer care. Furth...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/16810
更新日期:2020-03-20 00:00:00
abstract:BACKGROUND:There are few studies on the role of technology delivery mode on health intervention outcomes. Furthermore, the opportunity to examine potential mode effects on a program that is theory-based and integrates principles of communication and decision-making science to influence sexual and reproductive health ou...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/10398
更新日期:2018-08-29 00:00:00
abstract:BACKGROUND:Human immunodeficiency virus (HIV) is a serious health problem in the Russian Federation. However, the true scale of HIV in Russia has long been the subject of considerable debate. Using digital surveillance to monitor diseases has become increasingly popular in high income countries. But Internet users may ...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/jmir.2936
更新日期:2013-11-12 00:00:00
abstract:BACKGROUND:Many patients with eating disorders do not receive help for their symptoms, even though these disorders have severe morbidity. The Internet may offer alternative low-threshold treatment interventions. OBJECTIVE:This study evaluated the effects of a Web-based cognitive behavioral therapy (CBT) intervention u...
journal_title:Journal of medical Internet research
pub_type: 杂志文章,随机对照试验
doi:10.2196/jmir.3946
更新日期:2015-06-18 00:00:00
abstract:BACKGROUND:In traditional epidemiological studies, participants are likely motivated by perceived benefits, feelings of accomplishment, and belonging. No study has explored motives for participation in a Web-based cohort and the associated participant characteristics, although such information is useful for enhancing r...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/jmir.3161
更新日期:2014-08-07 00:00:00
abstract:BACKGROUND:Spouses and partners ("partners") of women at-risk for ("previvors") and surviving with hereditary breast/ovarian cancer are a primary source of support within their families. Yet, little is known about partners' needs for psychoeducational intervention to enhance their cancer risk knowledge, coping, and sup...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/jmir.1847
更新日期:2012-01-18 00:00:00
abstract:BACKGROUND:Past studies examining barriers to patient portal adoption have been conducted with a small number of patients and health care settings, limiting generalizability. OBJECTIVE:This study had the following two objectives: (1) to assess the prevalence of barriers to patient portal adoption among nonadopters and...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/18870
更新日期:2020-09-17 00:00:00
abstract:BACKGROUND:Obtaining access to a demographically and geographically diverse sample for health-related research can be costly and time consuming. Previous studies have reported mixed results regarding the potential of using social media-based advertisements to overcome these challenges. OBJECTIVE:Our aim was to develop...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/jmir.3786
更新日期:2014-10-27 00:00:00
abstract:BACKGROUND:Online social networking use has increased rapidly among African American and Latino men who have sex with men (MSM), making it important to understand how these technologies can be used to reach, retain, and maintain individuals in care and promote health wellness. In particular, the Internet is increasingl...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/jmir.3311
更新日期:2014-04-24 00:00:00
abstract:BACKGROUND:Massive open online courses (MOOCs), as originally conceived, promised to provide educational access to anyone with an internet connection. However, the expansiveness of MOOC education has been found to be somewhat limited. Nonetheless, leading universities continue to offer MOOCs, including many in the heal...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/17318
更新日期:2020-07-08 00:00:00
abstract:BACKGROUND:Much has been written about the Internet's potential to revolutionize health care delivery. As younger populations increasingly utilize Internet-based health care information, it will be essential to ensure that the elderly become adept at using this medium for health care purposes, especially those from min...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/jmir.7.2.e19
更新日期:2005-06-30 00:00:00
abstract:BACKGROUND:Demographic changes over the past decades call for the promotion of health and disease prevention for older patients, as well as strategies to enhance their independence, productivity, and quality of life. OBJECTIVE:Our objective was to examine the effects of a computer-based educational intervention design...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/jmir.6948
更新日期:2017-02-22 00:00:00
abstract:BACKGROUND:Adherence to childhood immunization schedules is a function of various factors. Given the increased use of technology as a strategy to increase immunization coverage, it is important to investigate how parents perceive different forms of communication, including traditional means and text-message reminders. ...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/jmir.1976
更新日期:2012-06-06 00:00:00
abstract:BACKGROUND:The Librarian Infobutton Tailoring Environment (LITE) is a Web-based knowledge capture, management, and configuration tool with which users can build profiles used by OpenInfobutton, an open source infobutton manager, to provide electronic health record users with context-relevant links to online knowledge r...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/jmir.4281
更新日期:2015-11-30 00:00:00
abstract:BACKGROUND:Diabetes self-management education has been shown to be effective in controlled trials. The 6-week Better Choices, Better Health-Diabetes (BCBH-D) self-management program was also associated with an improvement in health outcomes in a 6-month translation study. OBJECTIVE:The objective of this study was to d...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/jmir.6484
更新日期:2016-12-15 00:00:00