Biomedical subjects

Victor J Strecher

Publications and source records attributed to Victor J Strecher.

10 recordsLinked to original sources

PubMed2006

Web-based weight management programs in an integrated health care setting: a randomized, controlled trial.

OBJECTIVE: To assess the efficacy of a Web-based tailored behavioral weight management program compared with Web-based information-only weight management materials. RESEARCH METHODS AND PROCEDURES: Participants, 2862 eligible overweight and obese (BMI = 27 to 40 kg/m2) members from four regions of Kaiser Permanente's integrated health care delivery system, were randomized to receive either a tailored expert system or information-only Web-based weight management materials. Weight change and program satisfaction were assessed by self-report through an Internet-based survey at 3- and 6-month follow-up periods. RESULTS: Significantly greater weight loss at follow-up was found among participants assigned to the tailored expert system than among those assigned to the information-only condition. Subjects in the tailored expert system lost a mean of 3 +/- 0.3% of their baseline weight, whereas subjects in the information-only condition lost a mean of 1.2 +/- 0.4% (p < 0.0004). Participants were also more likely to report that the tailored expert system was personally relevant, helpful, and easy to understand. Notably, 36% of enrollees were African-American, with enrollment rates higher than the general proportion of African Americans in any of the study regions. DISCUSSION: The results of this large, randomized control trial show the potential benefit of the Web-based tailored expert system for weight management compared with a Web-based information-only weight management program.

Adult↗

PubMed2006

The efficacy of two brief intervention strategies among injured, at-risk drinkers in the emergency department: impact of tailored messaging and brief advice.

OBJECTIVE: This study used a randomized controlled trial design to compare the effectiveness of four interventions at reducing alcohol consumption, consequences, and heavy episodic drinking among injured, at-risk drinkers in the emergency department (ED). METHOD: Injured patients (n=4,476) completed a computerized survey; 575 at- risk drinkers were randomly assigned to one of four intervention conditions: tailored message booklet with brief advice, tailored message booklet only, generic message booklet with brief advice, and generic message booklet only. Regression models using the generalized estimating equation approach were constructed comparing the intervention conditions at baseline, 3-month follow-up, and 12-month follow-up. Gender and age were entered in models along with their interaction. RESULTS: Each of the intervention groups significantly decreased their alcohol consumption from baseline to 12-month follow-up; subjects in the tailored message booklet with brief advice group significantly decreased their average weekly alcohol consumption by 48.5% (p<.0001). Those in the brief advice conditions (tailored or generic) significantly decreased their average consumption during the 12 months of the study compared with the no brief advice conditions. Younger adult women (ages 19-22) who received some brief advice were the most likely to decrease their heavy episodic drinking. CONCLUSIONS: This was the first large-scale, brief intervention trial that included development and testing of computerized, highly tailored interventions with injured drinkers in the ED. ED-based interventions for alcohol problems would benefit from computerized screening, brief advice, and booklets to positively impact risky drinking practices.

Accidents, Traffic↗

PubMed2005

Genetic counseling for BRCA1/2: a randomized controlled trial of two strategies to facilitate the education and counseling process.

Due to the complexity of information surrounding BRCA1/2 counseling and testing and its time consuming nature, efforts to facilitate the genetic counseling and education process are needed. Using a 2 x 2 factorial design, two strategies were examined: a CD-ROM program for patients and a feedback checklist to the genetic counselor on patients' prior misconceptions. A total of 197 women attending a breast and ovarian cancer risk evaluation clinic for BRCA1/2 counseling were randomized into one of four conditions: standard care, CD-ROM only, feedback to counselor only, and both CD-ROM and feedback. Counseling outcomes included face-to-face time with the genetics team, knowledge acquisition, changes in worry about having a gene mutation, and genetic testing decisions. Overall, women who viewed the CD-ROM spent less time with the genetic counselor and were less likely to undergo genetic testing compared to women who did not view the CD-ROM. Feedback to the genetic counselor resulted in greater gains in knowledge of genetics and breast cancer. Among women less worried at baseline, those who viewed the CD-ROM showed no changes in worry following genetic counseling, in contrast to those who did not view the CD-ROM who increased in worry over time. This latter finding raises concerns about the impact of the increased worry on genetic testing decisions. No interaction effects of the two intervention arms were found. The study results support the importance of both strategies as valuable supplements to clinical BRCA1/2 counseling.

Adult↗

PubMed2005

Patterns of Internet use and impact on patients with melanoma.

BACKGROUND: Patients with cancer and their families frequently, and increasingly, turn to outside sources for information, particularly the World Wide Web. Our objective was to examine the use of the Internet and its impact among patients with melanoma. METHODS: A prospective survey was obtained from 1613 consecutive patients with cutaneous melanoma seen at our institution between August 2001 and February 2003. Main outcome measures included the ability to access the Internet, Internet use to search for melanoma information, and responses to such Internet searches. Further analysis of whether there were differences based on age, sex, or disease severity was performed. RESULTS: Of patients with melanoma, 39% indicated that they had used the Internet to research their disease, 30% themselves and 9% had someone else do it for them. Nearly half (47%) of patients younger than 40 years researched melanoma on the Internet compared with only 12% of patients 60 years or older. Neither sex nor disease severity impacted Internet use. The vast majority of patients (94%) thought the Internet was useful, 67% believed it helped them better understand their condition, and 45% said they would recommend using the Internet to others to find information about medical conditions. Roughly a third thought it decreased their anxiety, whereas a similar proportion believed the Internet made them more anxious. Increased anxiety correlated with decreasing age and increasing disease severity. CONCLUSIONS: The use of the Internet is common among patients with melanoma. Anxiety attributed to online information about their disease suggests that clinicians caring for patients with melanoma should familiarize themselves with online melanoma information, and be proactive in assisting their patients in using this resource.

Adolescent↗

PubMed2005

A randomized controlled trial of multiple tailored messages for smoking cessation among callers to the cancer information service.

Self-help materials computer-tailored to the specific needs of smokers have shown promise as a high-reach, low-cost intervention for smoking cessation. Adding tailored cessation materials to telephone-based cessation counseling may be a way of generating greater efficacy in promoting and maintaining cessation. The objective of this study is to assess the efficacy of adding different types of behavioral smoking cessation materials to brief telephone-based cessation counseling.A total of 1,978 smokers calling the National Cancer Institute's (NCI's) Cancer Information Service (CIS) for help in quitting smoking initially received brief cognitive-behavioral cessation counseling from a CIS information specialist. Following a baseline interview administered by the information specialist, subjects were randomly assigned to one of four conditions, each delivered by U.S. mail: a single, untailored smoking cessation guide (SU); a single, tailored smoking cessation guide (ST); a series of four (multiple) printed materials tailored only to baseline data (MT); and a series of four (multiple) printed materials tailored to baseline as well as retailored using 5-month interim progress data (MRT). The primary outcome measure was 7-day point prevalence abstinence rates assessed using a computer-assisted telephone interview (CATI) at 12-month follow-up.At 12-month follow-up, using intent-to-treat, imputed, and per-protocol analyses, no differences were found among the four experimental conditions (linear trend), or when the ST, MT, and MRT groups were compared with the control (SU) group. Participants in the two multiple message group conditions combined (MT + MRT), however, had significantly higher abstinence rates than participants in the two single message group conditions combined (SU + ST). Moreover, among subjects who reported quitting at the 5-month follow-up, participants receiving the MRT materials reported higher abstinence rates at 12 months than the other three groups combined (SU + ST + MT). The results of this study support the effectiveness, over and above a single telecounseling interaction, of multiple tailored print material contacts on cessation. These effects, however may be due to tailoring, or the longitudinal nature of the two multiple tailored conditions, or both. The strongest evidence for tailoring occurred in the MRT condition for relapse prevention, suggesting that print materials tailored to interim progress may be especially effective in this context. The qualities of specific psychosocial and communication elements in tailored materials should receive attention in future research.

Adult↗

PubMed2005

Randomized controlled trial of a web-based computer-tailored smoking cessation program as a supplement to nicotine patch therapy.

AIM: To assess the efficacy of World Wide Web-based tailored behavioral smoking cessation materials among nicotine patch users. DESIGN: Two-group randomized controlled trial. SETTING: World Wide Web in England and Republic of Ireland. PARTICIPANTS: A total of 3971 subjects who purchased a particular brand of nicotine patch and logged-on to use a free web-based behavioral support program. INTERVENTION: Web-based tailored behavioral smoking cessation materials or web-based non-tailored materials. MEASUREMENTS: Twenty-eight-day continuous abstinence rates were assessed by internet-based survey at 6-week follow-up and 10-week continuous rates at 12-week follow-up. FINDINGS: Using three approaches to the analyses of 6- and 12-week outcomes, participants in the tailored condition reported clinically and statistically significantly higher continuous abstinence rates than participants in the non-tailored condition. In our primary analyses using as a denominator all subjects who logged-on to the treatment site at least once, continuous abstinence rates at 6 weeks were 29.0% in the tailored condition versus 23.9% in the non-tailored condition (OR = 1.30; P = 0.0006); at 12 weeks continuous abstinence rates were 22.8% versus 18.1%, respectively (OR = 1.34; P = 0.0006). Moreover, satisfaction with the program was significantly higher in the tailored than in the non-tailored condition. CONCLUSIONS: The results of this study demonstrate a benefit of the web-based tailored behavioral support materials used in conjunction with nicotine replacement therapy. A web-based program that collects relevant information from users and tailors the intervention to their specific needs had significant advantages over a web-based non-tailored cessation program.

Administration, Cutaneous↗

PubMed2005

Measuring tobacco dependence treatment outcomes: a perspective from the behavior change consortium.

The Behavior Change Consortium (BCC) served as a consortium of 15 National Institutes of Health-funded trials intended to link theories of health behavior change to outcomes related to improved diet, exercise, and/or tobacco cessation. Five sites developed and tested interventions aimed at changing tobacco use behaviors, and the remaining 10 focused on changing diet and/or physical activity. The BCC's tobacco dependence workgroup functioned to identify measures of tobacco use and dependence for use across the 15 BCC trials. The BCC tobacco intervention trials described herein were categorized by type of trial; theory(ies) on which each was based; and the "thickness," or intensity, of the intervention. Between-site differences across these parameters posed conceptual and analytic challenges for combining data for cross-site analyses, which were integral to the BCC mission of identifying mechanisms of health behavior change. The lessons learned by the BCC tobacco dependence workgroup regarding the measurement and analysis of tobacco outcomes among BCC trials are discussed, including the challenges and the opportunities regarding the preparation for cross-site analyses. The workgroup concludes that trials should report both assessment of a prolonged period of abstinence of 6 months or longer, in addition to the traditional 7-day point prevalence outcome.

Behavior Therapy↗

PubMed2005

A strategy for optimizing and evaluating behavioral interventions.

BACKGROUND: Although the optimization of behavioral interventions offers the potential of both public health and research benefits, currently there is no widely agreed-upon principled procedure for accomplishing this. PURPOSE: This article suggests a multiphase optimization strategy (MOST) for achieving the dual goals of program optimization and program evaluation in the behavioral intervention field. METHODS: MOST consists of the following three phases: (a) screening, in which randomized experimentation closely guided by theory is used to assess an array of program and/or delivery components and select the components that merit further investigation; (b) refining, in which interactions among the identified set of components and their interrelationships with covariates are investigated in detail, again via randomized experiments, and optimal dosage levels and combinations of components are identified; and (c) confirming, in which the resulting optimized intervention is evaluated by means of a standard randomized intervention trial. To make the best use of available resources, MOST relies on design and analysis tools that help maximize efficiency, such as fractional factorials. RESULTS: A slightly modified version of an actual application of MOST to develop a smoking cessation intervention is used to develop and present the ideas. CONCLUSIONS: MOST has the potential to husband program development resources while increasing our understanding of the individual program and delivery components that make up interventions. Considerations, challenges, open questions, and other potential benefits are discussed.

Behavior Therapy↗

PubMed2002

Getting patients to the right healthcare sources: from real-world questions to strategy hubs.

To address the growing problem of novices accessing incomplete and unreliable information on the Web, this paper begins by probing the nature of strategic knowledge known by expert healthcare searchers. The analysis reveals the existence of a strategy that is focused to a specific type of healthcare question. To investigate whether there exist other similar strategies, we conduct two pilot studies. The first leads to the development of a taxonomy for skin cancer questions based on real-world questions. This taxonomy has high inter-rater agreement when tested with new real-world questions. The second pilot helps to identify 6 strategies that are specific to question types in the taxonomy. We demonstrate how these strategies can be made available to a wide range of users through a prototypical system referred to as a Strategy Portal. In conclusion, we briefly describe our current and future research to test if such a system can make patients more effective and efficient in the retrieval of reliable and relevant healthcare information on the Web.

Delivery of Health Care↗

PubMedDate not supplied

The development of an Alzheimer's disease channel for the Michigan Interactive Health Kiosk Project.

The overall objective of this article is to describe the development and implementation of an Alzheimer's disease (AD) module for the Michigan Interactive Health Kiosk Project. This project provides access to health information via 100 kiosks located in public places throughout the state (e.g., churches, senior centers, schools, shopping malls, grocery stores, hospitals) using interactive multimedia software. Because the kiosk screen was designed to resemble a television set, program modules are referred to as "channels." The AD channel is designed to increase knowledge and awareness of the disease among the general public. After an overview of the overall project, the steps involved in developing the AD channel and strategies designed to monitor its use are described, including touch-screen usage data and an on-line user survey. Finally, marketing and promotion of the channel and the implications of this initiative for disseminating information about AD are discussed.

Aged↗