Nurturing Longitudinal Samples 2.0.

BACKGROUND: While longitudinal designs can provide significant advantages compared to single measurement/cross sectional designs, they require careful attention to study infrastructure and the risk of attrition among the sample over multiple time points. OBJECTIVE: The strategies used to design and manage an appropriate infrastructure for a longitudinal study and approaches to retain samples are explored using examples from 2 studies, a 25-year study of persons living with multiple sclerosis and a 10-year longitudinal follow-up of breast cancer survivors. RESULTS: Key strategies (developing appropriate infrastructure, minimizing costs to participants, and maximizing rewards of study participation) have helped address the serious threat of attrition in these longitudinal samples. CONCLUSION: Implementation of these strategies can help mitigate some of the disadvantages and leverage the strengths of longitudinal research to produce reliable, insightful, and impactful outcomes.

Perceived Cognitive Function and Glycemic Variability: Baseline Results From a Cognitive Rehabilitation Intervention.

PURPOSE: The purpose of this study was to examine the association between glucose variability, diabetes self-management, and cognitive function in participants enrolled in a cognitive rehabilitation intervention for people with type 2 diabetes. METHODS: Baseline data from the Memory, Attention, and Problem-Solving Skills for Diabetes randomized controlled trial (n = 95; mean age 65.6 years, SD 5.99; 59.3% female; 59% non-Hispanic White) were analyzed and included scores from the PROMIS Cognitive Function version 2, a measure of perceived cognitive function; glucose variability measurements from continuous glucose monitors; and scores on the Summary of Diabetes Self-Care Activities Survey. RESULTS: Participants had higher levels of perceived cognitive dysfunction than the US average. Lower PROMIS scores were associated with higher levels of glucose variability. Better perceived cognitive health was related to better diabetes self-management. Glucose variability, measured by the coefficient of variation, was a significant predictor of perceived cognitive function. CONCLUSIONS: Perceived cognitive function was associated with diabetes self-management and glucose variability. Understanding this association can support the development of interventions to mitigate effects associated with glucose variability and changes in cognitive function. Including measurements of perceived cognitive function in assessments has the potential to alert health care providers about the need for additional support in diabetes management and the possibility of cognitive impairment that may need further objective assessment.

The meaning of health to persons aging with longstanding multiple sclerosis.

Understanding how persons aging with a chronic condition view their health is essential for planning and delivering person-centered care. The purpose of this study was to explore how persons aging with the chronic and disabling condition multiple sclerosis (MS) describe their health and how this has changed over time using data from Years 1 to 26 of an ongoing longitudinal survey study of health promotion and quality of life for persons with MS. The survey included measures of perceived meaning of health, self-rated health, health behaviors and quality of life outcomes. The sample included 168 persons with MS who returned the survey at Time 1 (1996) and again at Time 26 (2022). In 2022, participants had a mean age of 70.13 (SD = 8.19) and had been diagnosed with MS for an average of 34.47 years (SD = 6.27). Sixty percent of participants rated their overall health as good or excellent. Decreases in health self-ratings over time were not significant. Participants consistently agreed more strongly with items reflecting a wellness-oriented view of health than those reflecting a more clinical/biomedical model. At both time points, clinical definitions of health were negatively related and wellness definitions were positively related to reported frequency of health behaviors. Findings suggest that persons aging with the chronic condition of MS may be more responsive to health messages that emphasize function in daily living, carrying out normal responsibilities, and adjusting to changes in environment and demands. Patient or Public Contribution: Persons with MS provided study data, input on design, and construct measurement.

Evidence of compensatory neural hyperactivity in a subgroup of chemotherapy-treated breast cancer survivors and its association with brain aging.

Chemotherapy-related cognitive impairment (CRCI) remains poorly understood in terms of the mechanisms of cognitive decline. Neural hyperactivity has been reported on average in cancer survivors, but it is unclear which patients demonstrate this neurophenotype, limiting precision medicine in this population. We evaluated a retrospective sample of 80 breast cancer survivors and 80 non-cancer controls, age 35-73, for which we had previously identified and validated three data-driven, biological subgroups (biotypes) of CRCI. We measured neural activity using the z-normalized percent amplitude of fluctuation from resting state functional magnetic resonance imaging (MRI). We tested established, quantitative criteria to determine if hyperactivity can accurately be considered compensatory. We also calculated brain age gap by applying a previously validated algorithm to anatomic MRI. We found that neural activity differed across the three CRCI biotypes and controls (F = 13.5, p < 0.001), with Biotype 2 demonstrating significant hyperactivity compared to the other groups (p < 0.004, corrected), primarily in prefrontal regions. Alternatively, Biotypes 1 and 3 demonstrated significant hypoactivity (p < 0.02, corrected). Hyperactivity in Biotype 2 met several of the criteria to be considered compensatory. However, we also found a positive relationship between neural activity and brain age gap in these patients (r = 0.45, p = 0.042). Our results indicated that neural hyperactivity is specific to a subgroup of breast cancer survivors and, while it seems to support preserved cognitive function, it could also increase the risk of accelerated brain aging. These findings could inform future neuromodulatory interventions with respect to the risks and benefits of up or downregulation of neural activity.

Development and Use of a Tech-Based Data Management System for a Cognitive Rehabilitation Randomized Controlled Trial for People With Type 2 Diabetes.

Successful technology-based interventions to improve patients' self-management are providing an incentive for researchers to develop and implement their own technology-based interventions. However, the literature lacks guidance on how to do this. In this article, we describe the electronic process with which we designed and implemented a technology-based data management system to implement a randomized controlled trial of a comprehensive cognitive rehabilitation intervention to improve cognitive function and diabetes self-management in people with type 2 diabetes. System development included feasibility assessment, interdisciplinary collaboration, design mapping, and use of institutionally and commercially available software. The resulting framework offers a template to support the development of technology-based interventions. Initial development may be time-consuming, but the benefits of the technology-based format surpass any drawbacks.

Longitudinal Effects of Sex, Aging, and Multiple Sclerosis Diagnosis on Function.

BACKGROUND: A gap in research about the trajectories of function among men and women aging with functional limitations because of multiple sclerosis (MS) hinders ability to plan for future needs. OBJECTIVES: Using a biopsychosocial model, we characterize how men and women with MS report changes over time in their function and test how person-level differences in age, diagnosis duration, and sex influence perceived function. METHODS: A longitudinal study with multiple waves of surveys was used to collect data on participant perceptions of function, as well as demographic and contextual variables. Self-reported functional limitation was measured over a decade. The study participants were community residing with physician-diagnosed MS. RESULTS: The people with MS had a diagnosis duration of about 13 years and were around 51 years of age, on average, at the start of the study. They were primarily women and non-Hispanic White. We analyzed the data using mixed-effects models. Subject-specific, functional limitation trajectories were described best with a quadratic growth model. Relative to men, women reported lower functional limitation and greater between-person variation and rates of acceleration in functional limitation scores. DISCUSSION: Results suggest function progressed through two pathways for over a decade, particularly closer to diagnoses. Variability in trajectories between individuals based on sex and years since diagnosis of disease indicates that men and women with MS may experience perceptions of their function with age differently. This has implications for clinician advice to men and women with MS.

The role of cognitive rehabilitation in people with type 2 diabetes: A study protocol for a randomized controlled trial.

Today, the prevalence of cognitive dysfunction and the prevalence of diabetes are increasing. Research shows that diabetes increases cognitive impairment risk, and cognitive impairment makes diabetes self-management more challenging. Diabetes self-management, essential to good glycemic control, requires patients to assimilate knowledge about their complex disease and to engage in activities such as glucose self-monitoring and the management of their medications. To test a comprehensive cognitive rehabilitation intervention-the Memory, Attention, and Problem-Solving Skills for Persons with Diabetes (MAPSS-DM) program. Our central hypothesis is that participants who take part in the MAPSS-DM intervention will have improved memory and executive function, increased use of compensatory cognitive skills, and improved self-management. We will also explore the role of glucose variability in those changes. This is a randomized controlled trial. Sixty-six participants with cognitive concerns and type 2 diabetes will be assigned to either the full MAPSS-DM intervention or an active control. Participants will use continuous glucose monitoring pre- and post-intervention to identify changes in glycemic variability. All participants will also be evaluated systematically via questionnaires and neuropsychological tests at three timepoints: baseline, immediately post-intervention, and 3 months post-intervention. This study will fill an important gap by addressing cognitive function in the management of diabetes. Diabetes is related to accelerated cognitive aging, cognitive deficits are related to poorer self-management, and improvements in cognitive performance as a result of cognitive rehabilitation can translate into improved performance in everyday life and, potentially, diabetes self-management. The results of the proposed study will therefore potentially inform strategies to support cognitive function and diabetes self-management, as well as offer new mechanistic insights into cognitive function through the use of continuous glucose monitoring. Trial registration: This study has been registered at ClinicalTrials.gov (NCT04831775).

Development and testing of a biobanking acceptability scale: A multistage effort to add a biobank to an existing longitudinal study.

BACKGROUND: More biobanks linked to demographic, phenotypic, and clinical data are needed to advance multiple sclerosis (MS) research; however, little is known about biobanking attitudes among persons with MS, broadly, as well as willingness of participants in an existing longitudinal study to donate biospecimens, specifically. METHODS: To assess biobanking attitudes in a cohort of MS patients in an ongoing longitudinal study, a new Biobanking Acceptability Scale (BAS) was developed, its reliability and predictive validity tested, and factors that influenced biobanking intent as well as behavior were explored. Analysis included descriptive statistics, factor analysis, Cronbach's α, and Pearson's bivariate correlation coefficients. RESULTS: In 2018, 227 participants completed the 10-item BAS. Biobanking attitudes were generally positive (BAS total score, M = 38.8 out of 50; SD = 6.7), and most participants expressed willingness to donate hair (87%), saliva (85%), and/or blood (72%). In 2019, 143 participants consented to biobanking and were mailed supplies; 110 individuals provided at least one biospecimen, resulting in 110 saliva samples and 89 hair samples. The 10-item BAS displayed good internal consistency (α = 0.81). Demographic and clinical variables were not significantly associated with BAS score nor actual donation. Total BAS score was related to consent (r = 0.36, p < .001) and to actual donation of hair or saliva samples (r = 0.24, p < .01). CONCLUSION: Overall, the participants had positive attitudes toward biobanking; the scale should be assessed in more diverse samples. The BAS predicted biobanking consent, and thus may be a useful measure to identify individuals most likely to donate biospecimens and/or identify potential barriers to biobanking that can be addressed through study design.

Health Promotion, Functional Abilities, and Quality of Life Before and During COVID-19 in People With Multiple Sclerosis.

BACKGROUND: Because multiple sclerosis (MS) is an autoimmune disease and many individuals with MS take disease-modifying drugs that suppress immune response, serious concerns have been expressed about the potential effect of COVID-19 on those with this chronic condition. OBJECTIVES: The purpose of this research was to utilize the most recent 5 years of data from an ongoing longitudinal study of health promotion and quality of life (QoL) among people with long-standing MS to investigate changes across time in functional limitations, health promotion, and health-related QoL. METHODS: Participants are mailed an annual survey to complete about their health promotion, depressive symptoms, health status, social support, MS-related functional limitations, and QoL. Differences across time were analyzed with repeated measures of analysis of variances and planned contrasts. RESULTS: In 2021, the 141 participants had a mean age of 69 years and had been diagnosed with MS for 34 years, on average. Most had attended college, were married/partnered women, and reported adequate economic resources. Thirty-seven percent reported they were in poor to fair health. Physical activity and health responsibility scores decreased significantly during 2020-2021 compared with 2017-2019. Significant changes in depressive symptoms, social support, and functional limitation scores followed a different pattern, with the largest changes occurring between 2018 and 2019. QoL and other health promotion scores did not change significantly across time. DISCUSSION: The relatively small changes in health indicators revealed here suggest that older people with long-standing MS may have generally been able to maintain their health promotion, functional abilities, and QoL from before to during the COVID-19 pandemic. However, nurses and other providers should support them to resume their physical activity and regular provider contact as COVID-19 restrictions are eased. The patterns observed here demonstrate the importance of examining changes across an extended period, rather than simply looking at 1 year before and 1 year after a major event, such as COVID-19. These findings can help nurses understand how to help their patients with chronic health conditions maximize their health as they move forward.

Patterns and Correlates of Physical Symptoms among People with Peripheral Neuropathy.

Background: As the population ages and more people are affected by multiple chronic conditions, the prevalence of Peripheral Neuropathy (PN) has also rapidly increased. This swift rise in PN leaves clinicians and patients challenged by a lack of consistent diagnosis and treatment guidelines. Purpose: To assist those affected by PN, it is imperative to understand the breadth of symptoms, experiences, and factors related to the quality of life. The primary aims of this study are to (1) characterize the symptoms of PN in a nationwide sample; (2) discern differences in symptom clusters, given perceived causes of PN; and (3) identify significant physiological symptoms related to the quality of life for people with PN. Methods: An online survey of people in online PN support groups. Participants were recruited primarily via an open request sent to recipients of web-based communications from nationally recognized online PN support groups. Inclusion criteria were as follows: Self-reported diagnosis of PN, ability to read English or Spanish, residence in the U.S., and age ≥ 18 years. Results: A total of 608 individuals with PN were included in the analysis. This sample represents 49 U.S. states and the District of Colombia; 221 were male and 387 female. Their disease severity and etiology were similar to previously reported information on this population, with 53.3% of respondents suffering from PN without a known cause. Among known causes, diabetes was the most common (19.6%), followed by chemotherapy (6.9%) and autoimmune diseases (3.6%). Factors affecting the quality of life among people with PN included lower extremity mobility, upper extremity mobility, sleep disturbance, depressive symptoms, and patient activation.

Experiences of African American Women with Multiple Sclerosis.

BACKGROUND: Despite growing understanding that African American patients may have a more aggressive course of multiple sclerosis (MS) and experience disparities in diagnosis and treatment, fewer studies have examined how African Americans experience MS and its effect on their lives. This study explored the experiences of African American women with MS to inform future research and practice. METHODS: Face-to-face semistructured interviews were conducted with 19 African American women. Inductive content analysis was used to identify major categories and subcategories. RESULTS: The analyses yielded three major categories: no one could believe I had MS, it is tough living with MS, and you have to keep going. Many women reported that the MS diagnosis was a surprise to them and their doctors because of the common belief that MS is a "Caucasian disease." For this reason, many women felt their diagnosis had been delayed while their physicians initially focused on other diseases considered more typical in African American individuals. Living with losses related to social and family activities, independence, and employment was especially challenging for them. Faith in God, coming to grips with the diagnosis, and health promotion behaviors were key strategies for dealing with their MS. Women also spoke of pushing forward, working through MS challenges, and taking care of themselves, thus preserving their identity as strong Black women, a culturally important construct in the African American community. CONCLUSIONS: Future research should explore the interactions of culture with coping strategies and the development of useful and valued resources and supports for African American people with MS.

Comparing Health Promotion and Quality of Life in People with Progressive Versus Nonprogressive Multiple Sclerosis.

BACKGROUND: People with multiple sclerosis (MS) benefit from engaging in health promotion. Most studies have been conducted with those having relapsing-remitting MS; information about health promotion for those with progressive MS is more limited. In this study, health promotion and quality of life (QOL) for people with progressive versus nonprogressive MS were systematically examined and compared. METHODS: These data are from years 21 and 22 of an ongoing longitudinal study of persons with MS. Participants were compared on demographic, psychosocial, and health promotion factors and 36-item Short Form Health Survey (SF-36) QOL subscales. Based on the conceptual framework, barriers, symptom clusters, social supports, and health promotion activities were entered into hierarchical multivariate regressions to predict selected SF-36 subscale scores separately for those with progressive versus nonprogressive MS after controlling for variance associated with years of education and MS incapacity. RESULTS: Analyses included 72 respondents with progressive MS and 117 with nonprogressive MS. People with progressive MS reported significantly less frequent health promotion and lower scores on SF-36 physical role limitations and social functioning. Symptoms were a strong and significant predictor for all three SF-36 subscales in both groups. The explained variances in the hierarchical models differed significantly by MS course, with adjusted R 2 scores ranging from 0.17 to 0.30 in progressive MS and 0.35 to 0.45 in nonprogressive MS. CONCLUSIONS: Findings underscore the importance of symptom severity in relation to health promotion and QOL in people with long-standing MS. Future research should explore additional contributors to QOL for those with progressive MS.

Targeting cognitive function: Development of a cognitive training intervention for diabetes.

AIM: The aim of this project was to develop and demonstrate the feasibility of a comprehensive cognitive training intervention to build self-efficacy for implementation of cognitive strategies in people with diabetes. BACKGROUND: People with diabetes are at greater risk than the general population for developing cognitive dysfunction. Some attention has been paid to the effect of cognitive impairments on diabetes self-management, but even when cognitive problems have been identified, few interventions have been tailored for those with diabetes. METHODS: The intervention combines in-person classes and home-based online computer training. Development, in 2017, included (a) adaptation of prior established, tested interventions; (b) interviews with stakeholders; and (c) integration of course content. RESULTS: Information provided by the stakeholders was used to modify an existing intervention to meet the needs of people with diabetes so that feasibility testing could occur. Despite initial difficulty with recruitment, the intervention was found to be feasible, and nineteen participants found it to be acceptable. CONCLUSION: This comprehensive cognitive training intervention targeting type 2 diabetes and cognitive dysfunction demonstrates that existing interventions can be adapted for use with people with diabetes.

Moderator Effects in Intervention Studies.

BACKGROUND: Although nursing intervention studies typically focus on testing hypothesized differences between intervention and control groups, moderator variables can reveal for whom or under what circumstances an intervention may be most effective. OBJECTIVES: The aim of the study was to explain and illustrate moderator effects using data from a nursing intervention study to improve cognitive abilities in those with a chronic health condition. METHODS: The sample consisted of 178 individuals with multiple sclerosis participating in an experimental study of a cognitive intervention. General linear models were used for analyses. Interaction terms were created to represent moderator effects on three outcomes: self-reported cognitive abilities, use of memory strategies, and verbal memory performance. RESULTS: The Charlson comorbidity index significantly moderated the intervention effect on self-perceived cognitive abilities. Years of education significantly moderated the intervention effect on use of memory strategies. Scores on a general self-efficacy measure significantly moderated the intervention effect on the Controlled Verbal Learning Test-Second Edition. DISCUSSION: These analyses highlight the key role that moderator effects can play in nursing research. Although random assignment to groups can control potentially biasing effects of extraneous differences among individuals in intervention and control groups, those very differences may suggest fruitful avenues for hypothesis generating research about what works best for whom in intervention studies.

A Nurse-Led Cognitive Training Intervention for Individuals With Type 2 Diabetes.

Diabetes increases the risk for cognitive impairment and doubles the rate of cognitive decline after diagnosis. In turn, cognitive dysfunction makes diabetes self-management more difficult. Nurses who help manage these conditions are focused on identifying patients at risk for complications, promoting symptom management, and preventing further decline. The purpose of the current study was to develop and pilot test a nurse-led comprehensive cognitive training intervention for individuals with type 2 diabetes mellitus (T2DM), the Memory Attention and Problem Solving Skills in Persons With Diabetes Mellitus (MAPSS-DM). The 8-week intervention combined in-person classes and online computer training. Development included: (a) adaptation of established, tested interventions; (b) interviews with stakeholders; (c) integration of course content; and (d) pilot testing of the intervention in a one-group, pre-/posttest design (N = 19). Postintervention scores improved in all areas; improvements were statistically significant for diet adherence (t[18] = -2.41, p < 0.005), memory ability (t[18] = 5.54, p < 0.01), and executive function (t[18] = 3.11, p < 0.01). Fifty-eight percent of participants stated the intervention helped their diabetes self-management, and 74% indicated they wanted to continue using cognitive strategies learned in the intervention. Results from this study showed the MAPSS-DM to be a promising cognitive training intervention for individuals with T2DM. TARGETS: Individuals with T2DM. INTERVENTION DESCRIPTION: In-person classes and online computer training of a cognitive training intervention. MECHANISMS OF ACTION: Participants who completed the intervention would show improved cognitive function, which would result in improved self-management adherence followed by better glycemic control. OUTCOMES: Improved diabetes self-management and sustained use of learned cognitive strategies. [Res Gerontol Nurs. 2019; 12(4):203-212.].

Functional and health promotion predictors of PROMIS® scores in people with multiple sclerosis.

OBJECTIVE: The purpose of this study was to examine the impact of perceived functional abilities and health promotion activities on subsequent symptom experience among those who have lived with multiple sclerosis (MS) for many years. METHODS: This longitudinal mailed survey study examined Health Promoting Lifestyle Profile II (HPLP) scores and MOS SF 36 scores as predictors of PROMIS® Pain Interference, Pain Intensity, Fatigue, Sleep Disturbance, and Applied Cognition Abilities Scores among 260 adults with MS. The community dwelling sample was initially recruited from the mailing list of the MS Society in a large southwestern state. Respondents were predominantly female, with an average age of 67 years. They had been diagnosed an average of 30 years. Forty percent reported relapsing remitting MS, and 41% have the more severe progressive form of the disease. RESULTS: HPLP and SF 36 Role Physical, Role Emotional, and Social Function scores assessed in 2013 were moderately correlated (r > .30) with PROMIS® Fatigue and PROMIS® Cognitive Abilities scores measured in 2014 and were somewhat predictive of PROMIS® Pain and Sleep Disturbance scores (r > .20). These results were replicated in an analysis using data from Years 2016 and 2017. CONCLUSIONS: Findings suggest that those who report higher levels of health promotion activities and greater functional ability may experience lower levels of fatigue, pain, and sleep disturbance and higher levels of cognitive abilities in the subsequent year. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

An initial investigation of the reliability and validity of the Compensatory Cognitive Strategies Scale.

Although many cognitive performance tests and self-reported cognitive concerns scales have been used to evaluate cognitive functioning, fewer measures assess the use of compensatory cognitive strategies for daily activities among those experiencing mild levels of cognitive impairment. The Compensatory Cognitive Strategies Scale was developed to measure frequency of self-reported cognitive strategies to decrease distractions, organise and sequence activities, and to utilise newly available computer aids to assist memory among those with multiple sclerosis (MS). Cronbach's alpha, a measure of internal consistency reliability, was .89 and .90 in two different samples. Concurrent validity was supported by the total score's moderate correlation with the MMQ-Strategy Scale (rs = .67) and by a statistically significant increase in total scores for those who had participated in an intervention designed to improve their cognitive abilities. Correlations were stronger with another strategy measure than with measures of other constructs such as health-promoting behaviours, thus supporting the scales convergent versus divergent validity. These initial findings suggest that the Compensatory Cognitive Strategies Scale may be useful to both researchers and clinicians working to build compensatory strategies for day-to-day functioning among those with mild cognitive impairment.

Participant Perspectives of Cognitive Rehabilitation for Type 2 Diabetes: Expectations and Impact.

PURPOSE: To describe the experiences of people with type 2 diabetes who have completed a comprehensive cognitive rehabilitation intervention. METHOD: Nineteen participants with type 2 diabetes enrolled in an 8-week intervention consisting of 4 educational classes to learn strategies to improve cognitive function and an online training program at home to practice cognitively stimulating activities. Two focus groups were conducted as part of a study designed to assess the feasibility of the comprehensive cognitive rehabilitation intervention. RESULTS: Three main themes were identified in the qualitative data: (1) expectations of cognitive change; (2) use of cognitive strategies; and (3) effect on diabetes self-management. Participants shared valuable insight into how their experiences with the intervention changed and how they viewed diabetes. CONCLUSIONS: While the participants did not initially tie their cognitive complaints to diabetes, they were able to show how and why they might use cognitive strategies to improve diabetes self-management activities. By adapting those strategies for diabetes, quality of life can improve as well as potentially glycemic control.

Computer-assisted cognitive rehabilitation in persons with multiple sclerosis: Results of a multi-site randomized controlled trial with six month follow-up.

BACKGROUND: The effects of multiple sclerosis (MS) on cognition have gained increasing recognition as one of the major disabling symptoms of the disease. Despite the prevalence of these symptoms and their impact on quality of life, limited attention has been given to strategies that might help manage the cognitive changes commonly experienced by persons with MS. OBJECTIVE: The primary purpose of this study was to determine the effectiveness of a novel computer-assisted cognitive rehabilitation intervention MAPSS-MS (Memory, Attention, Problem Solving Skills in MS) in a multi-site trial with persons with MS. METHODS: Persons with MS (N = 183) with cognitive concerns were randomly assigned to either the 8-week MAPSS-MS intervention or usual care plus freely available computer games. Participants completed self-report and performance measures of cognitive functioning, compensatory strategies and depression at baseline, immediately after the MAPSS-MS intervention, and three and six months post-intervention. Changes in study outcomes were analyzed using intention to treat methodology, ANOVA with repeated measures, and ANCOVA. RESULTS: Both groups improved significantly on all outcome measures. The intervention group outperformed the comparison group on all measures, and there were statistically significant differences on selected measures. CONCLUSION: Findings suggest that MAPSS-MS is a feasible intervention that could be broadly implemented in community settings. It has been shown to be modestly successful in improving cognitive functioning.

Modifiable correlates of perceived cognitive function in breast cancer survivors up to 10 years after chemotherapy completion.

BACKGROUND: Cognitive changes following breast cancer treatment are likely multifactorial and have been linked to emotional factors, biophysiological factors, and fatigue, among others. Little is known about the contributions of modifiable factors such as stress, loneliness, and sleep quality. The purpose of this study was to explore the direct and indirect effects of perceived stress, loneliness, and sleep quality on perceived cognitive function (PCF) in breast cancer survivors (BCS) after chemotherapy completion. METHODS: In this observational study, BCS 6 months to 10 years post chemotherapy were recruited from the community. We measured perceived stress, loneliness, sleep quality, anxiety, depression, fatigue, and PCF. Data analyses included descriptive statistics, correlations, and mediation analyses utilizing ordinary least square regression. RESULTS: Ninety women who were on average 3 years post chemotherapy completion participated in the study. Moderate to largely negative correlations were found between PCF and the psychosocial and sleep variables (r values ranged from - 0.31 to - 0.70, p values < .0009). Mediation analyses revealed that stress and daytime sleepiness both directly and indirectly impact PCF and that loneliness and sleep quality only have indirect effects (through anxiety and fatigue). CONCLUSION: Our findings suggest that perceived cognitive changes following breast cancer treatment are multifactorial and that higher stress levels, loneliness, daytime sleepiness, and poorer sleep quality are linked to worse perceived cognitive functioning. Also, stress, loneliness, and sleep quality may affect cognitive functioning through a shared psychobiological pathway. IMPLICATIONS FOR CANCER SURVIVORS: Interventions targeting stress, loneliness, and sleep quality may improve perceived cognitive functioning in breast cancer survivors.