Mobile Mindfulness Meditation for Cancer-Related Anxiety and Neuropathy: Protocol for a Randomized Controlled Trial.

BACKGROUND: Anxiety- and cancer-related neuropathy are two persistent effects related to treatment for cancer. Mindfulness meditation has been used with substantial impact as a nonpharmacologic intervention to mitigate side and late effects of treatment. Mobile apps are ubiquitous for most of the general population, yet have a particular relevance for cancer survivors, given that physical and geographic limitations can be present. OBJECTIVE: This study aims to describe an ongoing trial of the Mindfulness Coach mobile app for cancer survivors. METHODS: In this randomized waitlist controlled trial, cancer survivors experiencing anxiety- or cancer-related neuropathy (200 for neuropathy and 200 for anxiety) and who had finished primary cancer treatment were invited to participate. Data were collected at 3 time points regardless of randomization condition: baseline, 8 weeks, and 16 weeks. Both face-to-face and web-based recruitment strategies were used. The trial was opened for 2 separate primary outcomes (anxiety- or cancer-related neuropathy). The goal was not to compare these groups but to compare treatment and waitlist groups for each condition. In addition to evaluating the impact of mobile mindfulness on reported anxiety- or cancer-related neuropathy, other pain, fatigue, trauma, sleep, and satisfaction with the Mindfulness Coach app will also be assessed. RESULTS: Outcomes of the study are expected in early 2024. CONCLUSIONS: Mindfulness meditation has become widely practiced, and the use of mobile technology has become ubiquitous. Finding ways to deliver mindfulness meditation to people who have been treated for cancer allows for the intervention to be accessible to a larger number of survivors. The results of this intervention could have implications for further understanding the impact of mindfulness meditation on 2 persistent side and late effects of treatment of cancer, namely anxiety- and cancer-related neuropathy. TRIAL REGISTRATION: ClinicalTrials.gov NCT03581357; https://ClinicalTrials.gov/study/NCT03581357. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/47745.

Hula as a physical activity and social support intervention for sustained activity in female breast and gynecologic cancer survivors.

Background: Physical activity improves health and psychosocial functioning for people who have been diagnosed with cancer. Native Hawaiians face disparities for some cancers, including breast cancer. Delivering culturally grounded interventions has the potential to improve enjoyment and adherence to the intervention. We sought to test the adherence and impact of a 6 month randomized wait-list controlled trial of hula. Methods: In this randomized wait-list controlled design people who had been diagnosed with breast or gynecologic cancers were invited to participate with other cancer survivors in a group based setting. Participants were randomized to begin hula immediately or after six months. Attendance was collected and heart-rate measured three times per session. In addition, demographic data, self-report psychosocial data, and biological data (findings will be reported elsewhere) were collected at three time points: baseline, 6 months, and 12 months. The study included six months of hula, twice per week, 60 min each session. In addition, participants committed to practice 60 min per week at home. Results: Participants in the study (n = 42) attended, on average, 72% of the sessions. Significant increase in moderate physical activity (d = 0.50, p = 0.03) was observed in the intervention versus control group. For the measures of intra-individual changes pre-and post-intervention, an increase in total physical activity were seen in the intervention group (d = 0.69, p = 0.003), daily caloric intake decreased (d = -0.62, p = 0.007), and a reduction in waist circumference (d = -0.89, p = 0.0002) that was sustained six months after completion of the intervention. Psychosocially, cognitive functioning significantly declined from baseline to 12 months (d = -0.50, p = 0.03), with role functioning improving (d = 0.55, p = 0.02), social constraints increasing (d = 0.49, p = 0.03), and financial difficulties improving (d = -0.55, p = 0.02). Conclusion: Sustainable physical activity is crucial to improve both the survival and quality of life of cancer survivors. Culturally grounded interventions, such as hula have the potential to increase the maintenance of physical activity. In addition, they create a support group where the benefits of people who have all experienced cancer can gather and garner those benefits of social support, too. This study was registered as a clinical trial through the National Cancer Institute (NCT02351479). Clinical trial registration: Clinicaltrails.gov, NCT02351479.

Oncology expressive arts: providing a window to reflect on a stressful experience.

PURPOSE: Evaluate changes in mood, perceived need for help, and task enjoyment after participation in a one-time Oncology on Canvas expressive arts workshop intervention. METHODS: Mixed methods design. Sample: military-veteran oncology survivors and their adult `ohana (family members, caregivers, friends, healthcare providers, volunteers). Measurement tools: Emotion Thermometers, Multiple Affect Adjective Checklist-Revised, Task Enjoyment Question, semi-structured interviews, and self-reflective narratives. Colaizzi's Phenomenological Method was used to conduct a thematic analysis. FINDINGS: Significant improvements in mood, increased task enjoyment, and decreased perceived need for help, with continued effects for up to 30-60 days post-intervention. CONCLUSIONS: A one-time expressive arts workshop intervention can provide a window for oncology survivors and their adult `ohana to reflect on a stressful experience. IMPLICATIONS FOR PSYCHOSOCIAL PROVIDERS: Psychosocial healthcare providers (APRNs, nurse educators, LCSWs, psychologists) who are not professional art therapists can effectively implement expressive arts workshops as a cost-effective intervention for oncology survivors and their `ohana.

Group-based Exercise Therapy Improves Psychosocial Health and Physical Fitness in Breast Cancer Patients in Hawai'i.

Cancer diagnosis and treatment often negatively impact quality of life, worsening prognosis, and long-term survival in cancer patients. Rehabilitation is effective at reversing cancer-related effects, but these services are not standardized. An implementation study was conducted to determine the usability and efficacy of group-based exercise therapy delivered from an outpatient therapy clinic. Thirty breast cancer patients (mean age ± standard deviation [SD],= 55 ± 10 years) completed 36 90-minute group-based exercise sessions in small groups. Team-based exercises were used to foster peer interaction and social support. Usability was evaluated with participant feedback, adherence, and occurrence of adverse events. Effectiveness was measured with the Revised Piper Fatigue, the City of Hope Quality of Life (QOL), and the Beck Depression Inventories. Paired t-tests and 2-way ANOVAs were used to detect significance (P<.05); Cohen's d was used to measure effect size. Twenty-five patients completed the program; they reported that they liked the program design. One anticipated, moderate adverse event occurred. The intervention improved fatigue and QOL, where significant main effects of time were detected [Fatigue: (F(1,76)=29.78, P <.001); QOL: (F(1,80)=24.42, P<.0001)]. Improvements in the fatigue inventory's behavioral/security and sensory dimensions (Cohen's d=-0.43 and È¡0.68, respectively) and the physical dimension of the QOL inventory were detected (Cohen's d=0.92). There were no significant changes in depression (P=.0735). Seven patients continued to participate in exercise classes for 2.5-years post-intervention, demonstrating achievability of program maintenance. Providing group-based exercise therapy services at an outpatient clinic is an effective and practical approach to improve cancer patients' QOL.

Recruiting Cancer Survivors to a Mobile Mindfulness Intervention in the United States: Exploring Online and Face-to-Face Recruitment Strategies.

Cancer survivorship research faces several recruitment challenges, such as accrual of a representative sample, as well as participant retention. Our study explores patterns in recruited demographics, patient-reported outcomes (PROs), and retention rates for a randomized controlled trial (RCT) utilizing a mobile mindfulness intervention for the well-being of cancer survivors. In total, 123 participants were recruited using traditional and online strategies. Using the chi-square test of independence, recruitment type was compared with demographic and clinical variables, PROs, and retention at Time 2 and Time 3. Online recruitment resulted in almost double the yield compared to traditional recruitment. Online-recruited participants were more often younger, from the continental U.S., Caucasian, diagnosed and treated less recently, at a later stage of diagnosis, diagnosed with blood cancer, without high blood pressure, and with less reported pain. The recruitment method was not significantly associated with retention. Online recruitment may capture a larger, broader survivor sample, but, similar to traditional recruitment, may also lead to selection biases depending on where efforts are focused. Future research should assess the reasons underlying the higher yield and retention rates of online recruitment and should evaluate how to apply a mix of traditional and online recruitment strategies to efficiently accrue samples that are representative of the survivor population.

A cross-sectional study of breast pain in a diverse population of breast cancer patients.

BACKGROUND: Breast cancer is the most common cancer in women, and postoperative breast pain has been reported to be anywhere from 25% to 60%. However, there is sparse data regarding racial/ethnic differences in breast pain among breast cancer patients. METHODS: We performed a cross-sectional anonymous survey of breast cancer patients from the Hawaii Cancer Consortium over a 6-week period between 2019 and 2020. The 237 breast cancer participants were ages 29 to 98, 74% Asian, and mainly from outpatient oncology clinics. We evaluated the prevalence of breast pain in a diverse group of breast cancer patients and characterized the pain using a modified short-form McGill pain questionnaire (sfMPQ). RESULTS: Eighty-fourrespondents(35.4%) reported breast pain. On univariable analysis, we found significant racial/ethnic differences in the amount of breast pain, where Chinese and Japanese participants reported significantly less pain compared to White participants on a 10-point pain scale. We found differences in breast pain according to age and endocrine therapy use as well as survey location, however, no differences were seen according to chemotherapy, radiation, or breast surgery. Based on the sfMPQ, the most common descriptors of breast pain were sensory (throbbing, shooting, and stabbing) compared to affective (tiring-exhausting, sickening, fearful, and punishing-cruel) characteristics. Although they were described as mild and intermittent, in women with breast pain, 33.4% reported the breast pain affected their sleep, 16.7% their work, and 15.4% their sexual activity. CONCLUSIONS: Breast pain is a significant problem in our breast cancer community. This survey assessment has informed our understanding of breast pain in our diverse population. In turn, we are developing culturally appropriate pain management strategies to treat this challenging symptom common in breast cancer survivors.

Understanding Attitudes and Roles of Oncology Advanced Practitioners in the Setting of Cancer Clinical Trials: A Pilot Study.

PURPOSE: Oncology advanced practitioners (APs), including nurse practitioners, physician assistants, clinical nurse specialists, and pharmacists, are skilled health-care providers who contribute significantly to quality cancer care. However, little is known about how APs function within the clinical trials arena. With low rates of clinical trial enrollment among the adult oncology patient population, APs could play an important role in improving clinical trial enrollment. METHODS: A descriptive cross-sectional study was conducted based on a 57-item survey of oncology APs' attitudes, beliefs, and roles in relation to cancer clinical trials. RESULTS: To assess validity and internal consistency of the survey, a pilot data collection was completed on 14 respondents from Hawaii. The survey's internal consistency across the subscales was moderate to very high, with Cronbach's alpha ranging between 0.55 and 0.86. The majority of oncology APs were interested in being more involved in the clinical trials process, and many are registered as investigators through the National Cancer Institute (NCI). However, few respondents reported being involved in recruitment, consenting, protocol development, or being actively involved with a research base. CONCLUSIONS: This survey was found to be a valid tool to measure APs' attitudes and roles in regards to clinical trials. This survey is just the beginning of data collection in regards to clinical trials among this group of health-care professionals. RECOMMENDATIONS: To gain further insight into oncology APs and their roles in clinical trials, it is recommended that this survey be implemented on a national level as a first step in moving this issue forward.

Paired exercise has superior effects on psychosocial health compared to individual exercise in female cancer patients.

PURPOSE: Exercise improves the quality of life (QOL) in cancer patients recovering from treatment. Since group exercise fosters cohesion, we sought to determine if paired exercise would have similar, positive effects. An experiential study design was used to compare the effect of exercise (12 weeks) on psychosocial health in paired versus individually trained cancer patients. METHODS: Female cancer patients (n = 28) who completed cancer treatment were placed into either the singly trained or paired group. Groups were matched for cardiorespiratory fitness (peak oxygen consumption, single: 24.1 ± 7.4, pair: 24.8 ± 6.3 ml/kg/min) and age (single: 58 ± 12, pair: 58 ± 9 years). Patients participated in 36, 90-min exercise sessions in accordance with exercise recommendations. QOL (Functional Assessment of Cancer Therapy-General, FACT-G), depressive, fatigue, and insomnia symptoms were measured before, midway, and after the intervention. Fitness was measured pre- and post-intervention. Participants did not meet prior to the intervention. Two-way ANOVAs and multiple comparisons tests were used to detect differences (p < 0.05). RESULTS: Emotional well-being and total FACT-G scores were significantly improved in the paired but not individually trained patients. Depressive symptoms were significantly improved at mid- and final time points in the paired group. Paired patients reported significant improvements in insomnia symptoms from pre- to mid-intervention. Depressive and insomnia symptoms in the individually trained group were unchanged. A significant main effect of group was detected in fatigue scores in patients who were not chronically tired at baseline (F(1, 12) = 6.318, p = 0.0272). Both groups exhibited similar improvements in fitness. CONCLUSION: Paired exercisers had greater benefits in QOL, emotional well-being, and insomnia and depressive symptoms compared to individual exercisers.

The Reach, Use, and Impact of a Free mHealth Mindfulness App in the General Population: Mobile Data Analysis.

BACKGROUND: As smartphones are now used by most Americans, it is increasingly possible for mental health mobile apps to be disseminated to the general public. However, little is known about how mobile mental health apps are used by the general population outside of a controlled research design. OBJECTIVE: Our objective is to describe how the general population engages with Mindfulness Coach, an iOS- and Android-based app designed to deliver a mindfulness training course. METHODS: Using anonymous download and analytics data, we characterized the reach, usage, retention, and impact of Mindfulness Coach. We included mobile analytics data from all unique downloads of Mindfulness Coach between August 1, 2018, and April 8, 2019 (N=104,067) as well as starred reviews from all Mindfulness Coach users who provided reviews of the app as of March 1, 2020. Mindfulness characteristics were measured by an in-app assessment using the Five-Facet Mindfulness Questionnaire-Short Form (FFMQ-SF). RESULTS: Users engaged, on average, in 4.3 visits to the app (SD 8.8; median 2; 90th percentile 8) and associated with an average total of 49.2 interactions with the app (ie, clicks within the app) (SD 113.8; median 19; 90th percentile 105). Users spent an average of 16.2 minutes (SD 63.1) engaged with the app over the full study time period. There were strong linear effects of app engagement on total FFMQ-SF scores. For example, FFMQ-SF scores were associated with more time spent engaged with the app (R2=.23; P<.001). Mindfulness Coach has been reviewed in the Google Play Store 3415 times, with an average rating of 4.7 out of 5 stars, and over 2000 times in the Apple App Store, with an average rating of 4.8 out of 5 stars. CONCLUSIONS: These findings suggest that Mindfulness Coach has achieved substantial and sustained reach in the general population; however, it was used less frequently by many downloaders than researchers and designers intended. There was a subpopulation of users who engaged in the app regularly over an extended period of time, and there was a clear relationship between app use and improvements in mindfulness. To strengthen Mindfulness Coach's public health impact, more research is needed to understand who is using the app and how, and to design strategies to increase user engagement in order for users to receive a larger dose of mindfulness treatment.

Identification of Emotional Expression With Cancer Survivors: Validation of Linguistic Inquiry and Word Count.

BACKGROUND: Given the high volume of text-based communication such as email, Facebook, Twitter, and additional web-based and mobile apps, there are unique opportunities to use text to better understand underlying psychological constructs such as emotion. Emotion recognition in text is critical to commercial enterprises (eg, understanding the valence of customer reviews) and to current and emerging clinical applications (eg, as markers of clinical progress and risk of suicide), and the Linguistic Inquiry and Word Count (LIWC) is a commonly used program. OBJECTIVE: Given the wide use of this program, the purpose of this study is to update previous validation results with two newer versions of LIWC. METHODS: Tests of proportions were conducted using the total number of emotion words identified by human coders for each emotional category as the reference group. In addition to tests of proportions, we calculated F scores to evaluate the accuracy of LIWC 2001, LIWC 2007, and LIWC 2015. RESULTS: Results indicate that LIWC 2001, LIWC 2007, and LIWC 2015 each demonstrate good sensitivity for identifying emotional expression, whereas LIWC 2007 and LIWC 2015 were significantly more sensitive than LIWC 2001 for identifying emotional expression and positive emotion; however, more recent versions of LIWC were also significantly more likely to overidentify emotional content than LIWC 2001. LIWC 2001 demonstrated significantly better precision (F score) for identifying overall emotion, negative emotion, and anxiety compared with LIWC 2007 and LIWC 2015. CONCLUSIONS: Taken together, these results suggest that LIWC 2001 most accurately reflects the emotional identification of human coders.

Correction to: Machine Learning for Identifying Emotional Expression in Text: Improving the Accuracy of Established Methods.

[This corrects the article PMC7467127.].

Using a cultural dance program to increase sustainable physical activity for breast cancer survivors-A pilot study.

BACKGROUND: Studies have shown that physical activity can reduce the risk of mortality for female breast cancer patients and improve quality of life, reduce weight, and alter circulating biomarker levels. We conducted a pilot trial to determine the feasibility of increasing physical activity through a cultural dance intervention to achieve similar benefits. METHODS: Conducted a pilot trial implementing a cultural dance intervention to increase and sustain physical activity for breast cancer survivors, which consisted of a six-month group-based intervention of Hula Dance. Anthropometric measures, fasting blood draws, and self-reported questionnaires to assess physical activity, mood, and quality of life, were completed at baseline, at the end of the 6-month intervention (time point month-6), and at two additional post-intervention time points (month-12 and month-24) to assess sustainability. RESULTS: A total of 11 women with a median age of 63 years were enrolled in the intervention trial. Eight of the 11 (73%) completed the trial to month-12 and demonstrated an overall significant increase in weekly moderate exercise. There were no significant changes in intra-individual body mass index (BMI). However, there was a sustained post-intervention reduction in waist circumference and significant changes in circulating biomarker levels. For the self-reported measures, there was a significant increase in vigor/activity (p < 0.001; Profile of Mood States-Short Form). CONCLUSION: Our intervention pilot trial demonstrated that a cultural dance program could achieve a sustainable increase in physical activity for breast cancer survivors, with potential to improve quality of life, increase vigor, and decrease levels of circulating cytokines associated with obesity and inflammation.

Perceived Impact of Participation in a One-Time Expressive Arts Workshop.

INTRODUCTION: This 2015 study examined the use of art to express the experience of the cancer journey of military cancer patients/cancer survivors, family and friends, caregivers, volunteers, and staff members through a one-time art-making workshop, administered by non-art therapists.Using art to express a medical/cancer journey may give participants, who cannot express their feelings in words, the ability to articulate their experience through art that looks at the creative process rather than the end result - expressive art. MATERIALS AND METHODS: This mixed methods study examined the use of art to express the cancer journey of participants. Twenty-eight adults participated in a one-time expressive arts workshop conducted by non-professional art therapists at a military medical center. The five domains of the Emotion Thermometer were analyzed to determine if the pre-event and post-event assessment results would differ. The Silver Drawing Test and Draw-a-Story assessment tools were used to identify emotions and attitudinal stance on six separate five-point scales. A qualitative analysis was done using the phenomenological method of the post-interviews that facilitated open expression to identify themes. RESULTS: A significant difference was found between the pre-event and post-event analyses using the Emotion Thermometer, with post-assessment results revealing lower levels in the three domains of distress, anxiety, and depression. The Silver Drawing Test and Draw-a-Story were analyzed for six components using a five-point scale, with the highest scores being content/meaning, ability to combine, and creativity. A qualitative analysis was done using the phenomenological method; post-interviews provided information to categorize the experience into four key themes: environment, connection, emotions, and discoveries. CONCLUSIONS: Using art to express one's journey through cancer allows participants to articulate that journey "beyond language." This mixed methods study was administered by five non-professional art therapists with three having no expressive arts background. This study established that an expressive arts workshop can effectively be conducted by non-professional art therapists. The team of non-professional art therapists, who facilitated this one-time art-making workshop, demonstrated that a military member's stress can be decreased by giving them "a voice" through expressive art.

Randomized Trial of a Social Networking Intervention for Cancer-Related Distress.

BACKGROUND: Web and mobile technologies appear to hold promise for delivering evidence-informed and evidence-based intervention to cancer survivors and others living with trauma and other psychological concerns. Health-space.net was developed as a comprehensive online social networking and coping skills training program for cancer survivors living with distress. PURPOSE: The purpose of this study was to evaluate the effects of a 12-week social networking intervention on distress, depression, anxiety, vigor, and fatigue in cancer survivors reporting high levels of cancer-related distress. METHODS: We recruited 347 participants from a local cancer registry and internet, and all were randomized to either a 12-week waiting list control group or to immediate access to the intervention. Intervention participants received secure access to the study website, which provided extensive social networking capabilities and coping skills training exercises facilitated by a professional facilitator. RESULTS: Across time, the prevalence of clinically significant depression symptoms declined from 67 to 34 % in both conditions. The health-space.net intervention had greater declines in fatigue than the waitlist control group, but the intervention did not improve outcomes for depression, trauma-related anxiety symptoms, or overall mood disturbance. For those with more severe levels of anxiety at baseline, greater engagement with the intervention was associated with higher levels of symptom reduction over time. CONCLUSIONS: The intervention resulted in small but significant effects on fatigue but not other primary or secondary outcomes. Results suggest that this social networking intervention may be most effective for those who have distress that is not associated with high levels of anxiety symptoms or very poor overall psychological functioning. TRIAL REGISTRATION NUMBER: The trial was registered with the ClinicalTrials.gov database ( ClinicalTrials.gov #NCT01976949).

Online cancer communities as informatics intervention for social support: conceptualization, characterization, and impact.

Objectives: The Internet and social media are revolutionizing how social support is exchanged and perceived, making online health communities (OHCs) one of the most exciting research areas in health informatics. This paper aims to provide a framework for organizing research of OHCs and help identify questions to explore for future informatics research. Based on the framework, we conceptualize OHCs from a social support standpoint and identify variables of interest in characterizing community members. For the sake of this tutorial, we focus our review on online cancer communities. Target audience: The primary target audience is informaticists interested in understanding ways to characterize OHCs, their members, and the impact of participation, and in creating tools to facilitate outcome research of OHCs. OHC designers and moderators are also among the target audience for this tutorial. Scope: The tutorial provides an informatics point of view of online cancer communities, with social support as their leading element. We conceptualize OHCs according to 3 major variables: type of support, source of support, and setting in which the support is exchanged. We summarize current research and synthesize the findings for 2 primary research questions on online cancer communities: (1) the impact of using online social support on an individual's health, and (2) the characteristics of the community, its members, and their interactions. We discuss ways in which future research in informatics in social support and OHCs can ultimately benefit patients.

Machine Learning for Identifying Emotional Expression in Text: Improving the Accuracy of Established Methods.

Expression of emotion has been linked to numerous critical and beneficial aspects of human functioning. Accurately capturing emotional expression in text grows in relevance as people continue to spend more time in an online environment. The Linguistic Inquiry and Word Count (LIWC) is a commonly used program for the identification of many constructs, including emotional expression. In an earlier study (Bantum & Owen, 2009) LIWC was demonstrated to have good sensitivity yet poor positive predictive value. The goal of the current study was to create an automated machine learning technique to mimic manual coding. The sample included online support groups, cancer discussion boards, and transcripts from an expressive writing study, which resulted in 39,367 sentence-level coding decisions. In examining the entire sample the machine learning approach outperformed LIWC, in all categories outside of Sensitivity for negative emotion (LIWC Sensitivity = .85; Machine Learning Sensitivity = .41), although LIWC does not take into consideration prosocial emotion, such as affection, interest, and validation. LIWC performed significantly better than the machine learning approach when removing the prosocial emotions (p = <.0001). The sample over-represented examples of emotion that fit into the overarching category of positive emotion. Remaining work is needed to create more effective machine learning features for codes that are thought to be important emotionally but were not well represented in the sample (e.g., frustration, contempt, and belligerence), and Machine Learning could be a fruitful method for continued exploration.

Perceived influence and college students' diet and physical activity behaviors: an examination of ego-centric social networks.

BACKGROUND: Obesity is partially a social phenomenon, with college students particularly vulnerable to changes in social networks and obesity-related behaviors. Currently, little is known about the structure of social networks among college students and their potential influence on diet and physical activity behaviors. The purpose of the study was to examine social influences impacting college students' diet and physical activity behaviors, including sources of influence, comparisons between sources' and students' behaviors, and associations with meeting diet and physical activity recommendations. METHODS: Data was collected from 40 students attending college in Hawaii. Participants completed diet and physical activity questionnaires and a name generator. Participants rated nominees' influence on their diet and physical activity behaviors as well as compared nominees' behaviors to their own. Descriptive statistics were used to look at perceptions of influence across network groups. Logistic regression models were used to examine associations between network variables and odds of meeting recommendations. RESULTS: A total of 325 nominations were made and included: family (n = 116), college friends (n = 104), high school friends (n = 87), and significant others (n = 18). Nearly half of participants were not from Hawaii. Significant others of non-Hawaii students were perceived to be the most influential (M(SD) = 9(1.07)) and high school friends the least influential (M(SD) = 1.31(.42)) network. Overall, perceived influence was highest for diet compared to physical activity, but varied based on comparisons with nominees' behaviors. Significant others were most often perceived has having similar (44 %) or worse (39 %) eating behaviors than participants, and those with similar eating behaviors were perceived as most influential (M(SD) = 9.25(1.04)). Few associations were seen between network variables and odds of meeting recommendations. CONCLUSIONS: Among the groups nominated, high school friends were perceived as least influential, especially among students who moved a long distance for college. Intervention strategies addressing perceived norms and using peer leaders may help promote physical activity among college students, while diet interventions may need to involve significant others in order to be successful. Testing of these types of intervention strategies and continued examination of social networks and their influences on diet and physical activity behaviors are needed.

Characterizing Social Networks and Communication Channels in a Web-Based Peer Support Intervention.

Web and mobile (mHealth) interventions have promise for improving health outcomes, but engagement and attrition may be reducing effect sizes. Because social networks can improve engagement, which is a key mechanism of action, understanding the structure and potential impact of social networks could be key to improving mHealth effects. This study (a) evaluates social network characteristics of four distinct communication channels (discussion board, chat, e-mail, and blog) in a large social networking intervention, (b) predicts membership in online communities, and (c) evaluates whether community membership impacts engagement. Participants were 299 cancer survivors with significant distress using the 12-week health-space.net intervention. Social networking attributes (e.g., density and clustering) were identified separately for each type of network communication (i.e., discussion board, blog, web mail, and chat). Each channel demonstrated high levels of clustering, and being a community member in one communication channel was associated with being in the same community in each of the other channels (φ = 0.56-0.89, ps < 0.05). Predictors of community membership differed across communication channels, suggesting that each channel reached distinct types of users. Finally, membership in a discussion board, chat, or blog community was strongly associated with time spent engaging with coping skills exercises (Ds = 1.08-1.84, ps < 0.001) and total time of intervention (Ds = 1.13-1.80, ps < 0.001). mHealth interventions that offer multiple channels for communication allow participants to expand the number of individuals with whom they are communicating, create opportunities for communicating with different individuals in distinct channels, and likely enhance overall engagement.

Diet and Physical Activity Intervention Strategies for College Students.

OBJECTIVES: To understand perceived barriers of a diverse sample of college students and their suggestions for interventions aimed at healthy eating, cooking, and physical activity. METHODS: Forty students (33% Asian American, 30% mixed ethnicity) were recruited. Six focus groups were audio-recorded, transcribed, and coded. Coding began with a priori codes, but allowed for additional codes to emerge. Analysis of questionnaires on participants' dietary and physical activity practices and behaviors provided context for qualitative findings. RESULTS: Barriers included time, cost, facility quality, and intimidation. Tailoring towards a college student's lifestyle, inclusion of hands-on skill building, and online support and resources were suggested strategies. CONCLUSIONS: Findings provide direction for diet and physical activity interventions and policies aimed at college students.