Browsing by Author "Johns, Shelley"

Now showing 1 - 5 of 5
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    Acceptability and Feasibility of a Meaning-Based Intervention for Patients With Advanced Cancer and Their Spouses A Pilot Study
    (Sage, 2016) Wagner, Christina D.; Johns, Shelley; Brown, Linda F.; Hanna, Nasser; Bigatti, Silvia M.; Department of Social and Behavioral Sciences, Richard M. Fairbanks School of Public Health
    Background: Constructing meaning in cancer leads to improved psychosocial outcomes for patients and survivors. Aim: We tested the feasibility and preliminary efficacy of a meaning-based intervention for couples. Design: The single-arm pilot study tested a 4-session, tailored, activities-based couple’s intervention. Setting/Participants: Twelve adults with incurable cancer and their partners participated either in a university office or at the couple’s home. Results: The study showed good feasibility. One of the two patients depressed at baseline was no longer depressed at postintervention. Patients’ threat appraisals decreased and transcendence increased. In partners, depression, anxiety, and challenge appraisal decreased; threat and secondary appraisals and peace with illness increased. Conclusions: Our findings suggest feasibility and efficacy, and further research and continued evaluation of this intervention are warranted.
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    Behavioral Measurement of Mindfulness: Preliminary Examination of its Validity and Change Following a Mindfulness-Based Intervention for Adults with Advanced Cancer and their Family Caregivers
    (2022-05) Lewson, Ashley B.; Mosher, Catherine E.; Johns, Shelley; Zapolski, Tamika
    Mindfulness-based interventions (MBIs) have demonstrated efficacy in reducing symptoms in survivors of early-stage cancer and have shown promise in adults with advanced cancer and their family caregivers. These interventions may be especially helpful for coping with advanced cancer because acceptance and a greater focus on present-moment experiences are central to the adjustment process. Mindfulness may be a potential mechanism underlying MBI’s health effects, yet suboptimal assessment of mindfulness hinders examination of this hypothesis. Widely used self-report measures of mindfulness require participants to have high self-awareness and comprehend a complex skill and show limited responsiveness to MBIs. Behavioral assessment of mindfulness may address the limitations of self-report measures. The goal of the current study was to obtain preliminary evidence of the validity of a behavioral measure of mindfulness, Levinson and colleagues’ breath counting task, and its responsiveness to MBI among patients and caregivers coping with advanced cancer. Fifty-five patient-caregiver dyads were recruited from a university hospital and community clinics in Indiana. Dyads were randomized to either a 6-week MBI or a usual care control condition. Measures were administered at baseline prior to intervention (week 0), at the end of the 6-week intervention period (week 6), and 1-month post-intervention (week 10). Measures included the breath counting task, self-reported mindfulness, avoidant coping, and distress. Linear mixed modeling was used to determine whether the MEANING intervention led to increased behavioral and self-reported mindfulness compared to the usual care group. Caregivers in the MEANING condition showed improved behavioral mindfulness relative to caregivers in usual care, whereas patients in both the MEANING and usual care conditions showed relatively stable behavioral mindfulness over time. Additionally, there was no evidence that the MEANING intervention impacted behavioral mindfulness to a greater extent than self-reported mindfulness. To further examine the behavioral mindfulness measure’s validity, its relations with self-reported mindfulness, avoidant coping, and distress were examined at all time points. For both patients and caregivers, correlations between behavioral and self-reported mindfulness were small or nearly zero and were not uniformly positive. In the MEANING condition, correlations showed mostly small changes over time, and in the control condition, correlations generally showed little change over time. In addition, for patients and caregivers, most correlations between behavioral mindfulness and distress and avoidant coping were approaching zero or small. Results support the feasibility of the breath counting task in adults with advanced cancer and their caregivers, but provide limited support for its validity. The task warrants further evaluation in populations coping with chronic illness.
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    Evaluating the role of serotonin in hot flashes after breast cancer using acute tryptophan depletion.
    (Wolters Kluwer, 2009) Carpenter, Janet S.; Yu, Menggang; Wu, Jingwei; Von Ah, Diane; Milata, Jennifer; Otte, Julie L.; Johns, Shelley; Schneider, Bryan; Storniolo, Anna Maria; Salomon, Ronald; Desta, Zeuresenay; Cao, Donghua; Jin, Yan; Philips, Santosh; Skaar, Todd C.
    OBJECTIVE: Among women with breast cancer, hot flashes are frequent, severe, and bothersome symptoms that can negatively impact quality of life and compromise compliance with life-saving medications (eg, tamoxifen and aromatase inhibitors). Clinicians' abilities to treat hot flashes are limited due to inadequate understanding of physiological mechanisms involved in hot flashes. Using an acute tryptophan depletion paradigm, we tested whether alterations in central serotonin levels were involved in the induction of hot flashes in women with breast cancer. METHODS: This was a within-participant, double-blind, controlled, balanced, crossover study. Twenty-seven women completed two 9-hour test days. On one test day, women ingested a concentrated amino acid drink and encapsulated amino acids (no tryptophan) according to published procedures that have been shown to have specific effects on serotonin within 4.5 to 7 hours. On the other test day, women ingested a control drink. Serial venous blood sampling and objective hot flash monitoring were used to evaluate response to each condition. RESULTS: Response to acute tryptophan depletion was variable and unexplained by use of selective serotonin reuptake inhibitors, antiestrogens, breast cancer disease and treatment variables, or genetic polymorphisms in serotonin receptor and transporter genes. Contrary to our hypothesis, hot flashes were not worsened with acute tryptophan depletion. CONCLUSIONS: Physiologically documented and self-reported hot flashes were not exacerbated by tryptophan depletion. Additional mechanistic research is needed to better understand the etiology of hot flashes.
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    Predicting fear of breast cancer recurrence and self-efficacy in survivors by age at diagnosis
    (Oncology Nursing Society, 2012-05) Ziner, Kim Wagler; Sledge Jr., George W.; Bell, Cynthia J.; Johns, Shelley; Miller, Kathy D.; Champion, Victoria L.; IU School of Nursing
    PURPOSE/OBJECTIVES: To determine the effect that age at diagnosis has on fear of breast cancer recurrence and to identify the predictors of fear of recurrence using self-efficacy as a mediator. DESIGN: Cross-sectional survey. SETTING: Two university cancer centers and one cooperative group in the midwestern United States. SAMPLE: 1,128 long-term survivors. METHODS: Survivors were eligible if they were aged 18-45 years (younger group) or 55-70 years (older group) at cancer diagnosis, had received chemotherapy, and were three to eight years postdiagnosis. Fear of recurrence was compared between younger and older groups. Multiple regression analyses were used to test variables' prediction of fear of recurrence and breast cancer survivor self-efficacy, as well as breast cancer survivor self-efficacy mediation effects. MAIN RESEARCH VARIABLES: Fear of recurrence, breast cancer survivor self-efficacy, and age at diagnosis. FINDINGS: Survivors diagnosed at a younger age had significantly higher fear of recurrence, as well as health, role, womanhood, death, and parenting worries. Perceived risk of recurrence, trait anxiety, and breast cancer reminders explained significant variance in fear of recurrence and breast cancer survivor self-efficacy. Breast cancer survivor self-efficacy partially mediated the effects of variables on fear of recurrence. CONCLUSIONS: The findings suggest that breast cancer survivor self-efficacy may have a protective effect for survivors who are younger at diagnosis and have higher perceived risk of recurrence, higher trait anxiety, and more breast cancer reminders. Oncology nurses already use the skills required to support self-efficacy. Additional research is needed to define and test breast cancer survivor self-efficacy interventions. IMPLICATIONS FOR NURSING: Oncology nurses are in a key role to assess fear of recurrence and provide self-efficacy interventions to reduce it in breast cancer survivors. Strategies to efficiently address fear of recurrence to reduce psychological distress in survivorship follow-up care are warranted.
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    The Relationship Between Socioeconomic Disadvantage And Dementia Caregiver Burden
    (Oxford University Press, 2022) Beverly, Alexis; Baucco, Christina; Park, Seho; Schroeder, Matthew; Johns, Shelley; Judge, Katherine; Fowler, Nicole; Biostatistics and Health Data Science, Richard M. Fairbanks School of Public Health
    More than 16 million people provide unpaid care to someone with Alzheimer’s disease or a related dementia (ADRD) in the United States. These caregivers frequently report experiencing psychological and physical burden. Prior research shows that socioeconomic disadvantaged neighborhoods have higher rates of ADRD, but little is known about caregiver burden. We hypothesized more socioeconomic disadvantage is associated with higher caregiver burden. We performed a secondary analysis using baseline data on dementia caregivers (n=132) enrolled in the Indiana University Telephone Acceptance and Commitment Therapy for Caregivers (TACTICs) pilot trials. Mean (SD) caregiver age was 61.6 (11.6) years; 83.3% women; 78.8% white; 19.7% black. Seventy-two percent of the caregivers lived with the care recipient and 50.8% reported moderate dementia severity. A linear regression model examined the relationship between caregiver’s national Area Deprivation Index (ADI) score (ranging from 1–100 with higher scores indicating greater socioeconomic disadvantage) and caregiver burden. The following covariates were included: age, sex, race, education, shared residence with care-recipient, health status, anxiety, depression, and dementia severity of care recipient. Higher ADI was associated with lower caregiver burden (β=-0.222, p < 0.001). Caregiver burden has a significant negative relationship with ADI and dementia severity (p<-.001 and 0.046, respectively) and positive relationship with anxiety (p=0.014) controlling other covariates in the model. Although we found no support for the hypothesis, further research should examine these factors with how caregiver’s ADI may impact other psychosocial wellbeing outcomes. Discussion will highlight the need for caregivers to have access to resources that can aid them through their experience.