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  • Author: Supriya G. Mohile x
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Cynthia Owusu, Harvey Jay Cohen, Tao Feng, William Tew, Supriya G. Mohile, Heidi D. Klepin, Cary P. Gross, Ajeet Gajra, Stuart M. Lichtman, Arti Hurria and on behalf of the Cancer and Aging Research Group (CARG)

Objectives: Anemia is associated with functional disability among older adults in general. However, the relationship between anemia and functional disability has not been well characterized among older adults with cancer. Therefore, we examined the association between anemia and functional disability in patients with cancer aged 65 years or older. Patients and Methods: We conducted cross-sectional analysis of data derived from a multicenter prospective study of 500 patients with cancer aged 65 years or older. The primary outcome was functional disability at chemotherapy initiation, defined as the need for assistance with at least one instrumental activity of daily living. Anemia (using WHO criteria) was defined as a hemoglobin (Hb) level of less than 12 g/dL in women and less than 13 g/dL in men. Multivariable logistic regression was used to examine the association between anemia and functional disability. Results: Among 491 evaluable patients (median age, 73.1 years [range, 65–91 years]), the prevalence of functional disability and anemia was 43% and 51%, respectively. Compared with patients without anemia, patients with anemia were more likely to report functional disability. On multivariable analysis, adjusting for sex, stage, and unintentional weight loss, patients with anemia were more likely to have functional disability (odds ratio, 2.40; 95% CI, 1.61–3.59). Conclusions: Anemia was highly prevalent and independently associated with functional disability in this cohort of older adults with cancer. Given the importance of functional status in cancer treatment decision-making, longitudinal studies evaluating the causal relation between anemia and functional status among older patients with cancer are warranted to evaluate causality.

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Kah Poh Loh, Maya Abdallah, Meng-Shiou Shieh, Mihaela S. Stefan, Penelope S. Pekow, Peter K. Lindenauer, Supriya G. Mohile, Dilip Babu and Tara Lagu

Background: Invasive mechanical ventilation (IMV), dialysis for acute kidney failure, and other critical care therapies (CCTs) are associated with a high risk for complications in patients with metastatic cancer. Inpatient palliative care (IPC) can assist in assessing patients' preferences for life-prolonging treatment at the end of life. This study investigated the use pattern of IPC, outcomes (in-hospital mortality, length of stay [LOS], discharge destination, and cost of care), and predictors of IPC use in patients with metastatic cancer who received CCTs. We hypothesized that IPC services are underused in this cohort. Methods: In this retrospective cohort study, we used the 2010 California State Inpatient Databases to identify adults with metastatic cancer who received CCTs that are common and reliably coded (IMV, tracheostomy, percutaneous endoscopic gastrostomy tube, dialysis for acute kidney failure, and total parenteral nutrition). We determined IPC use in all patients, in those who received IMV, and across 4 cancer subtypes (lung, breast, colorectal, and genitourinary). Outcomes were assessed based on IPC use. Multivariable analyses were used to investigate factors associated with IPC use. Results: We identified 5,862 hospitalizations, 19.8% of which used IPC services. IPC use varied across cancer subtypes (lung, 28.3%; breast, 22.4%; colorectal, 12.8%; genitourinary, 16.1%; P<.01). Patients who received and did not receive IPC services had high in-hospital mortality rates (63.9% and 29.8%, respectively), and costs of care and LOS were lower in survivors who received IPC compared with those who did not. Predictors of IPC use were lung cancer (vs colorectal or genitourinary cancer), higher comorbidity score, do-not-resuscitate status on admission or within 24 hours of admission, infections (vs cancer-related diagnoses), and higher hospital bed count. Conclusions: Use of IPC was low in the cohort who received CCTs with poor outcomes, although data on outpatient palliative care services is lacking. Predictors of IPC use may be used to identify patients who may benefit from these services.

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Mostafa R. Mohamed, Erika Ramsdale, Kah Poh Loh, Huiwen Xu, Amita Patil, Nikesha Gilmore, Spencer Obrecht, Megan Wells, Ginah Nightingale, Katherine M. Juba, Bryan Faller, Adedayo Onitilo, Thomas Bradley, Eva Culakova, Holly Holmes and Supriya G. Mohile

Background: Polypharmacy and potentially inappropriate medications (PIMs) are prevalent in older adults with cancer, but their associations with physical function are not often studied. This study examined the associations of polypharmacy and PIMs with physical function in older adults with cancer, and determined the optimal cutoff value for the number of medications most strongly associated with physical functional impairment. Methods: This cross-sectional analysis used baseline data from a randomized study enrolling patients aged ≥70 years with advanced cancer starting a new systemic cancer treatment. We categorized PIM using 2015 American Geriatrics Society Beers Criteria. Three validated physical function measures were used to assess patient-reported impairments: activities of daily living (ADL) scale, instrumental activities of daily living (IADL) scale, and the Older Americans Resources and Services Physical Health (OARS PH) survey. Optimal cutoff value for number of medications was determined by the Youden index. Separate multivariate logistic regressions were then performed to examine associations of polypharmacy and PIMs with physical function measures. Results: Among 439 patients (mean age, 76.9 years), the Youden index identified ≥8 medications as the optimal cutoff value for polypharmacy; 43% were taking ≥8 medications and 62% were taking ≥1 PIMs. On multivariate analysis, taking ≥8 medications was associated with impairment in ADL (adjusted odds ratio [aOR], 1.64; 95% CI, 1.01–2.58) and OARS PH (aOR, 1.73; 95% CI, 1.01–2.98). PIMs were associated with impairments in IADL (aOR, 1.72; 95% CI, 1.09–2.73) and OARS PH (aOR, 1.97; 95% CI, 1.15–3.37). A cutoff of 5 medications was not associated with any of the physical function measures. Conclusions: Physical function, an important component of outcomes for older adults with cancer, is cross-sectionally associated with polypharmacy (defined as ≥8 medications) and with PIMs. Future studies should evaluate the association of polypharmacy with functional outcomes in this population in a longitudinal fashion.

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Supriya G. Mohile, Allison Magnuson, Chintan Pandya, Carla Velarde, Paul Duberstein, Arti Hurria, Kah Poh Loh, Megan Wells, Sandy Plumb, Nikesha Gilmore, Marie Flannery, Marsha Wittink, Ronald Epstein, Charles E. Heckler, Michelle Janelsins, Karen Mustian, Judith O. Hopkins, Jane Liu, Srihari Peri and William Dale

Background: This study's objectives were to describe community oncologists' beliefs about and confidence with geriatric care and to determine whether geriatric-relevant information influences cancer treatment decisions. Methods: Community oncologists were recruited to participate in 2 multisite geriatric oncology trials. Participants shared their beliefs about and confidence in caring for older adults. They were also asked to make a first-line chemotherapy recommendation (combination vs single-agent vs no chemotherapy) for a hypothetical vignette of an older patient with advanced pancreatic cancer. Each oncologist received one randomly chosen vignette that varied on 3 variables: age (72/84 years), impaired function (yes/no), and cognitive impairment (yes/no). Other patient characteristics were held constant. Logistic regression models were used to identify associations between oncologist/vignette-patient characteristics and treatment decisions. Results: Oncologist response rate was 61% (n=305/498). Most oncologists agreed that “the care of older adults with cancer needs to be improved” (89%) and that “geriatrics training is essential” (72%). However, <25% were “very confident” in recognizing dementia or conducting a fall risk or functional assessment, and only 23% reported using the geriatric assessment in clinic. Each randomly varied patient characteristic was independently associated with the decision to treat: younger age (adjusted odds ratio [aOR], 5.01; 95% CI, 2.73–9.20), normal cognition (aOR, 5.42; 95% CI, 3.01–9.76), and being functionally intact (aOR, 3.85; 95% CI, 2.12–7.00). Accounting for all vignettes across all scenarios, 161 oncologists (52%) said they would offer chemotherapy. All variables were independently associated with prescribing single-agent over combination chemotherapy (older age: aOR, 3.22; 95% CI 1.43–7.25, impaired cognition: aOR, 3.13; 95% CI, 1.36–7.20, impaired function: aOR, 2.48; 95% CI, 1.12–5.72). Oncologists' characteristics were not associated with decisions about providing chemotherapy. Conclusion: Geriatric-relevant information, when available, strongly influences community oncologists' treatment decisions.