Abstract:
BACKGROUND:Dietary intake assessment with diet records (DR) is a standard research and practice tool in nutrition. Manual entry and analysis of DR is time-consuming and expensive. New electronic tools for diet entry by clients and research participants may reduce the cost and effort of nutrient intake estimation. OBJECTIVE:To determine the validity of electronic diet recording, we compared responses to 3-day DR kept by Tap & Track software for the Apple iPod Touch and records kept on the Nutrihand website to DR coded and analyzed by a research dietitian into a customized US Department of Agriculture (USDA) nutrient analysis program, entitled GRAND (Grand Forks Research Analysis of Nutrient Data). METHODS:Adult participants (n=19) enrolled in a crossover-designed clinical trial. During each of two washout periods, participants kept a written 3-day DR. In addition, they were randomly assigned to enter their DR in a Web-based dietary analysis program (Nutrihand) or a handheld electronic device (Tap & Track). They completed an additional 3-day DR and the alternate electronic diet recording methods during the second washout. Entries resulted in 228 daily diet records or 12 for each of 19 participants. Means of nutrient intake were calculated for each method. Concordance of the intake estimates were determined by Bland-Altman plots. Coefficients of determination (R(2)) were calculated for each comparison to assess the strength of the linear relationship between methods. RESULTS:No significant differences were observed between the mean nutrient values for energy, carbohydrate, protein, fat, saturated fatty acids, total fiber, or sodium between the recorded DR analyzed in GRAND and either Nutrihand or Tap & Track, or for total sugars comparing GRAND and Tap & Track. Reported values for total sugars were significantly reduced (P<.05) comparing Nutrihand to GRAND. Coefficients of determination (R(2)) for Nutrihand and Tap & Track compared to DR entries into GRAND, respectively, were energy .56, .01; carbohydrate .58, .08; total fiber .65, .37; sugar .78, .41; protein .44, .03; fat .36, .03; saturated fatty acids .23, .03; sodium .20, .00; and for Nutrihand only for cholesterol .88; vitamin A .02; vitamin C .37; calcium .05; and iron .77. Bland-Altman analysis demonstrates high variability in individual responses for both electronic capture programs with higher 95% limits of agreement for dietary intake recorded on Tap & Track. CONCLUSIONS:In comparison to dietitian-entered 3-day DR, electronic methods resulted in no significant difference in mean nutrient estimates but exhibited larger variability, particularly the Tap & Track program. However, electronic DR provided mean estimates of energy, macronutrients, and some micronutrients, which approximated those of the dietitian-analyzed DR and may be appropriate for dietary monitoring of groups. Electronic diet assessment methods have the potential to reduce the cost and burden of DR analysis for nutrition research and clinical practice. TRIAL REGISTRATION:Clinicaltrials.gov NCT01183520; http://clinicaltrials.gov/ct2/show/NCT01183520 (Archived by WebCite at http://www.webcitation.org/6VSdYznKX).
journal_name
J Med Internet Resjournal_title
Journal of medical Internet researchauthors
Raatz SK,Scheett AJ,Johnson LK,Jahns Ldoi
10.2196/jmir.3744subject
Has Abstractpub_date
2015-01-20 00:00:00pages
e21issue
1eissn
1439-4456issn
1438-8871pii
v17i1e21journal_volume
17pub_type
杂志文章,随机对照试验abstract:BACKGROUND:Over the past decade, physician-rating websites have been gaining attention in scientific literature and in the media. However, little knowledge is available about the awareness and the impact of using such sites on health care professionals. It also remains unclear what key predictors are associated with th...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/jmir.2702
更新日期:2013-08-28 00:00:00
abstract:BACKGROUND:Although web-based interventions for promoting health and health-related behavior can be effective, poor adherence is a common issue that needs to be addressed. Technology as a means to communicate the content in web-based interventions has been neglected in research. Indeed, technology is often seen as a bl...
journal_title:Journal of medical Internet research
pub_type: 杂志文章,评审
doi:10.2196/jmir.2104
更新日期:2012-11-14 00:00:00
abstract:BACKGROUND:In support of professional practice, asynchronous communication between the patient and the provider is implemented separately or in combination with Internet-based self-management interventions. This interaction occurs primarily through electronic messaging or discussion boards. There is little evidence as ...
journal_title:Journal of medical Internet research
pub_type: 杂志文章,评审
doi:10.2196/jmir.3000
更新日期:2014-01-16 00:00:00
abstract:BACKGROUND:The availability of Internet-based continuing medical education is rapidly increasing, but little is known about recruitment of physicians to these interventions. OBJECTIVE:The purpose of this study was to examine predictors of physician participation in an Internet intervention designed to increase screeni...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/jmir.7.4.e48
更新日期:2005-09-02 00:00:00
abstract:BACKGROUND:Cognitive impairment is one of the most debilitating manifestations of multiple sclerosis. Currently, the assessment of cognition relies on a time-consuming and extensive neuropsychological examination, which is only available in some centers. OBJECTIVE:To enable simpler, more accessible cognitive screening...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
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abstract:BACKGROUND:Videoconferencing-based treatments have shown great potential in increasing engagement and compliance by decreasing the barriers of time and distance. In general, employees tend to experience a lot of stress, but find it difficult to visit a clinic during office hours. OBJECTIVE:The purpose of this study wa...
journal_title:Journal of medical Internet research
pub_type: 杂志文章,随机对照试验
doi:10.2196/10760
更新日期:2018-10-22 00:00:00
abstract:BACKGROUND:As the process of producing official health statistics for lifestyle diseases is slow, researchers have explored using Web search data as a proxy for lifestyle disease surveillance. Existing studies, however, are prone to at least one of the following issues: ad-hoc keyword selection, overfitting, insufficie...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
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abstract:BACKGROUND:The emergence of the Internet has increased access to health information and can facilitate active individual engagement in health care decision making. Hispanics are the fastest-growing minority group in the United States and are also the most underserved in terms of access to online health information. A g...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
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更新日期:2014-07-22 00:00:00
abstract:BACKGROUND:Blended group therapy (bGT) has been investigated a several times for anxiety and depression, but information on patients' adherence to and therapists' perception of the novel format is nonexistent. Furthermore, many studies investigated mainly female and highly educated populations, limiting the validity of...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
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更新日期:2019-04-28 00:00:00
abstract:BACKGROUND:Antimicrobial resistance has reached globally alarming levels and is becoming a major public health threat. Lack of efficacious antimicrobial resistance surveillance systems was identified as one of the causes of increasing resistance, due to the lag time between new resistances and alerts to care providers....
journal_title:Journal of medical Internet research
pub_type: 杂志文章
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更新日期:2012-05-29 00:00:00
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journal_title:Journal of medical Internet research
pub_type: 杂志文章
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更新日期:2015-11-17 00:00:00
abstract:BACKGROUND:Groups and individuals that seek to negatively influence public opinion about the safety and value of vaccination are active in online and social media and may influence decision making within some communities. OBJECTIVE:We sought to measure whether exposure to negative opinions about human papillomavirus (...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/jmir.4343
更新日期:2015-06-10 00:00:00
abstract:BACKGROUND:The fact that patient satisfaction with primary care clinical practices and physician-patient communications has decreased gradually has brought a new opportunity to the online channel as a supplementary service to provide additional information. OBJECTIVE:In this study, our objectives were to examine the p...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/jmir.1574
更新日期:2011-11-02 00:00:00
abstract:BACKGROUND:Hypertension is considered as a main risk factor for chronic kidney disease development and progression. Thus, the control and evaluation of this disease with new software and devices are especially important in patients who suffer from chronic kidney disease. OBJECTIVE:This study aimed to validate the Qard...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
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更新日期:2019-12-02 00:00:00
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journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/jmir.2369
更新日期:2014-04-18 00:00:00
abstract:BACKGROUND:Personal health records (PHRs) remain a relatively new technology and concept in practice even though they have been discussed in the literature for more than 50 years. There is no consensus on the definition of a PHR or PHR system even within the professional societies of health information technology. OBJ...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/jmir.1781
更新日期:2011-11-29 00:00:00
abstract:BACKGROUND:The Internet is widely used by young people and could serve to improve insufficient access to mental health care. Previous information on this topic comes from selected samples (students or self-selected individuals) and is incomplete. OBJECTIVE:In a community sample of young adults, we aimed to describe fr...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
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更新日期:2015-05-15 00:00:00
abstract:BACKGROUND:The German Biobank Alliance (GBA) aims to establish a cross-site biobank network. For this endeavor, the so-called Sample Locator, a federated search tool for biospecimens and related data, has been developed, forming the heart of its information technology (IT) infrastructure. OBJECTIVE:To ensure the susta...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/17739
更新日期:2020-08-18 00:00:00
abstract:BACKGROUND:The last decade has witnessed unprecedented growth in the number of mobile phones in the developing world, thus linking millions of previously unconnected people. The ubiquity of mobile phones, which allow for short message service (SMS), provides new and innovative opportunities for disease prevention effor...
journal_title:Journal of medical Internet research
pub_type: 杂志文章,评审
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更新日期:2012-01-12 00:00:00
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journal_title:Journal of medical Internet research
pub_type: 杂志文章,评审
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journal_title:Journal of medical Internet research
pub_type: 杂志文章
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更新日期:2012-06-06 00:00:00
abstract::Brain-machine interfaces hold promise for the restoration of sensory and motor function and the treatment of neurological disorders, but clinical brain-machine interfaces have not yet been widely adopted, in part, because modest channel counts have limited their potential. In this white paper, we describe Neuralink's ...
journal_title:Journal of medical Internet research
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journal_title:Journal of medical Internet research
pub_type: 临床试验,杂志文章,多中心研究
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更新日期:2005-11-17 00:00:00
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journal_title:Journal of medical Internet research
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更新日期:2019-06-19 00:00:00
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journal_title:Journal of medical Internet research
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更新日期:2014-01-17 00:00:00
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journal_title:Journal of medical Internet research
pub_type: 杂志文章,随机对照试验
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更新日期:2015-11-03 00:00:00
abstract:BACKGROUND:Since 2000, the Centre for Online Health (COH) at The University of Queensland has offered a range of online eHealth courses at the undergraduate and postgraduate level. While online learning has a number of advantages, in some domains, it can present some challenges to the development of practical skills an...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
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更新日期:2012-12-18 00:00:00
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journal_title:Journal of medical Internet research
pub_type: 杂志文章,多中心研究,随机对照试验
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