Characteristics associated with decrements in objective measures of physical function in older patients with cancer during chemotherapy.

PURPOSE: Study purposes were to evaluate for inter-individual variability in the trajectories of three objective measures of physical function (PF) in older patients receiving chemotherapy (n = 112) and determine which characteristics were associated with worse PF. METHODS: Balance, gait speed, and chair-stand test were evaluated at initiation and 1, 3, 6, 9, and 12 months following chemotherapy. Hierarchical linear modeling was used to assess inter-individual variability in the trajectories of the three tests. Demographic, clinical, and symptom characteristics, and levels of cognitive function associated with initial levels and changes over time in each of the tests were determined. RESULTS: Gait speed and chair-stand tests improved over time. Balance declined until month 6, then increased. Characteristics associated with decreases in balance scores at initiation of chemotherapy were lower level of education and lower Karnofsky Performance Status (KPS) score. For initial levels of poorer gait speed, older age, poorer Trail Making Test B (TMTB), and worse Attentional Function Index scores were the associated characteristics. Lower KPS scores, higher body mass index, and poorer TMTB scores were associated with poorer chair-stand times at initiation of chemotherapy. Worse trajectories of chair-stand times were associated with poorer chair-stand time at enrollment. Characteristic associated with lower initial levels and improved trajectories of balance was older age at enrollment. CONCLUSIONS: Determination of characteristics associated with decrements in balance, gait speed, and chair-stand can assist clinicians to identify older oncology patients at risk for decrements in PF. Interventions to maintain and improve PF need to be implemented with higher risk patients.

Changes in Subjective Measures of Cognitive Function in Older Adults From the Initiation Through 12 Months After the Receipt of Chemotherapy.

BACKGROUND: Cognitive impairment has a negative impact on older patients with cancer. OBJECTIVES: The aim of this study was to evaluate for interindividual differences in 2 subjective measures of cognitive function in older patients (n = 112), as well as determine which demographic, clinical, and symptom characteristics, and levels of physical function, were associated with initial levels and with the trajectory of each of these 2 measures. METHODS: Cognitive function was assessed using the cognitive function scale from the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 and the Attentional Function Index at the initiation of chemotherapy and at 1, 3, 6, 9, and 12 months after its initiation. Hierarchical linear modeling was used to assess for interindividual differences in and characteristics associated with initial levels and changes in cognitive function. RESULTS: Characteristics associated with decreases in Quality of Life Questionnaire Core 30 scores at the initiation of chemotherapy were longer time since the cancer diagnosis and higher depression scores. Characteristics associated with poorer Attentional Function Index scores at enrollment were lower levels of education and higher depression scores. No characteristics were associated with worse trajectories of either cognitive function measure. CONCLUSION: Some older patients undergoing chemotherapy experience decrements in cognitive function. IMPLICATIONS FOR PRACTICE: Our findings suggest that clinicians need to assess for depressive symptoms in older patients before the initiation of chemotherapy. Evidence-based interventions (eg, cognitive stimulation, increased physical activity) can be recommended to maintain and increase cognitive function in older oncology patients.

Quality of life of older gynecologic oncology patients at the initiation of chemotherapy.

AIM: To evaluate older gynecologic oncology patients' quality of life (QOL) at the initiation of chemotherapy and compare their QOL scores with a female age-matched general population (GP) sample. DESIGN: Cross-sectional. METHODS: Older (n = 122) gynecologic oncology patients completed the European Organization for the Research and Treatment of Cancer Quality of Life Questionnaire (QLQ-C30) that evaluates global health and five functional scales (range from 0 to 100). Differences in QOL scores between our sample and the GP were evaluated using one-sample t-tests and effect sizes were calculated using Cohen's d. RESULTS: Patients' mean age was 70.7 years (±6.6). Mean scores for the function scales ranged from 58.5 (±31.1) for role function to 86.1 (±17.0) for cognitive function. Compared to the GP, our sample reported significantly lower scores for global health status, social, role and physical functioning, and a significantly higher score for cognitive functioning. No differences were found in emotional functioning scores. PATIENT OR PUBLIC CONTRIBUTION: No patient or public contribution.

Age-related differences in self-report and objective measures of cognitive function in older patients prior to chemotherapy.

AIM: Evaluate for differences in demographic and clinical characteristics and subjective and objective measures of cognitive function (CF) between younger older adults (YOA, 60-69 years) and older adults (OA, ≥70 years). DESIGN: Cross-sectional. METHODS: Older oncology patients (n = 139) completed subjective (Attentional Function Index, European Organization for the Research and Treatment of Cancer Quality of Life Questionnaire (EORTC) CF scale) and objective (Montreal Cognitive Assessment, Trail Making Test (TMT) A & B) measures of CF prior to chemotherapy. Data were analyzed using parametric and nonparametric tests. RESULTS: No differences were found between the two groups for any of the subjective or objective CF measures, except that OA patients had higher TMT B scores. Compared with the general population, OAs had significantly higher EORTC CF scores and YOAs had significantly worse scores for all of the objective tests. Clinically meaningful difference between group differences was found for the TMT B test.

Distinctions Between Self-Report and Performance-Based Measures of Physical Function in Older Patients Prior to Chemotherapy.

BACKGROUND: The maintenance of physical function (PF) is an extremely important outcome for elderly people. OBJECTIVE: The aims of this study were to identify differences in the subjective and objective measures of PF between younger older adults (YOAs, 60-69 years of age) and older adults (OA, ≥70 years of age), to compare the PF scores with age-matched samples from the general population, and to evaluate for associations between the subjective and objective measures of PF. METHODS: Patients (n = 139) were assessed using subjective (ie, European Organization for Research and Treatment of Cancer Core Quality-of-Life Questionnaire) and objective (ie, Short Physical Performance Battery [SPPB]) measures prior to chemotherapy (CTX). Data were analyzed using parametric and nonparametric tests. RESULTS: No differences were found between the 2 age groups in any of the subjective or objective measures of PF. Compared with the age-matched general population, both YOAs and OAs had significantly lower scores in both measures of PF. Large effect sizes were found for differences in European Organization for Research and Treatment of Cancer Core Quality-of-Life Questionnaire role function, SPPB balance, and SPPB total scores between the YOA group and the age-matched general population samples. Correlations between the subjective and objective measures were low. CONCLUSIONS: Older patients with cancer have lower PF than their age-matched general population prior to CTX. Longitudinal studies are warranted to evaluate for changes in PF during and following CTX. IMPLICATIONS FOR PRACTICE: Nurses need to perform routine assessments of PF in older oncology patients prior to CTX. Our findings suggest that SPPB gait speed may be a useful screening measure for PF in older patients.

Common and distinct characteristics associated with self-reported functional status in older patients with cancer receiving chemotherapy.

PURPOSE: To evaluate for inter-individual differences in two subjective measures of functional status in older patients (n = 112), as well as to determine which demographic, clinical, and symptom characteristics, and levels of cognitive function, were associated with initial levels and with the trajectory of the two measures. METHODS: Functional status was assessed using self-report measures of physical function (PF) and role function (RF) from the European Organization for Research and Treatment of Cancer Core Quality-of-Life Questionnaire at the initiation of chemotherapy and at 1, 3, 6, 9, and 12 months after its initiation. Hierarchical linear modeling was used to assess inter-individual differences in and characteristics associated with initial levels and changes in PF and RF. RESULTS: Characteristics associated with decreases in PF at the initiation of chemotherapy were higher numbers of comorbidities and higher depression, pain, and dyspnea scores. For initial levels of poorer RF, lower Karnofsky Performance Status scores and higher pain and fatigue scores were the associated characteristics. Characteristic associated with worse trajectories of PF was not having had surgery. For RF, worse trajectories were associated with lower cognitive function and higher RF at enrollment. Characteristic associated with both lower initial levels and improved trajectories of PF was having lower performance status at enrollment. CONCLUSIONS: Older patients undergoing chemotherapy experience reduced functional performance. Characteristics associated with decrements in PF and RF need to be assessed and interventions implemented to maintain and increase functional status in older oncology patients.

Symptom experience of older oncology patients with low versus high levels of multimorbidity prior to chemotherapy.

PURPOSE: Evaluate for differences in demographic and clinical characteristics between older oncology patients with low multimorbidity (<2 multimorbidities) and high multimorbidity (≥2 multimorbidities) and evaluate for differences in symptom occurrence, severity, and distress ratings between the two groups. METHODS: Symptoms of older oncology patients (n = 125) were assessed using the Memorial Symptom Assessment Scale prior to chemotherapy administration. Data were analyzed using t-tests for continuous variables and Chi-square or Fisher's exact tests for categorical variables. RESULTS: For the total sample, lack of energy and pain were the two most common symptoms. Compared to the low multimorbidity group, the high multimorbidity group had a higher number of symptoms and significantly higher occurrence rates for feeling nervous, difficulty sleeping, dry mouth, and pain. Compared to the low multimorbidity group, the high multimorbidity group had significantly higher severity ratings for pain, feeling sad, lack of energy, feeling drowsy, and worrying. For distress, the high multimorbidity group reported significantly higher ratings for pain, worrying, feeling sad, feeling nervous, and "I don't look like myself". No differences were found in any demographic or clinical characteristics between the two multimorbidity groups. CONCLUSIONS: Multimorbidity is associated with higher symptom occurrence, severity, and distress in older oncology patients. Our findings suggest that the symptoms with the highest severity ratings were not the most distressing. Clinicians should identify multimorbidities and assess symptoms prior to chemotherapy to identify patients at increased risk and initiate referrals for interventions.

Distinct attentional function profiles in older adults receiving cancer chemotherapy.

PURPOSE: While attentional function is an extremely important patient outcome for older adults, research on changes in function in this group is extremely limited. The purposes of this study were to: identify subgroups of older patients (i.e., latent growth classes) based on changes in their level of self-reported attentional function; determine which demographic and clinical characteristics were associated with subgroup membership; and determine if these subgroups differed on quality of life (QOL) outcomes. METHODS: Older oncology outpatients (n = 365) who were assessed for changes in attention and working memory using the Attentional Function Index a total of six times over two cycles of chemotherapy (CTX). QOL was assessed using the Medical Outcomes Study-Short Form 12 and the QOL-Patient Version Scale. Latent profile analysis (LPA) was used to identify subgroups of older adults with distinct attentional function profiles. RESULTS: Three distinct attentional functional profiles were identified (i.e., low, moderate, and high attentional function). Compared to the high class, older adults in the low and moderate attentional function classes had lower functional status scores, a worse comorbidity profile and were more likely to be diagnosed with depression. In addition, QOL scores followed an expected pattern (low class < moderate class < high attentional function class). CONCLUSIONS: Three distinct attentional function profiles were identified among a relatively large sample of older adults undergoing CTX. The phenotypic characteristics associated with membership in the low and moderate latent classes can be used by clinicians to identify high risk patients.