SMARTfit Dual-Task Exercise Improves Cognition and Physical Function in Older Adults With Mild Cognitive Impairment: Results of a Community-Based Pilot Study.

Mild cognitive impairment is an intermediate state between the cognitive decline often experienced in normal aging and dementia that affects 15% of Americans over 65 years of age. Our communities have an opportunity to support the development and adoption of evidence-based programs to help older adults preserve cognition and physical function. In partnership with a local urban YMCA in an underserved, predominantly minority neighborhood, we tested the appeal and therapeutic benefits of SMARTfit training among older adults with mild cognitive impairment. The participants reported a positive training experience. After 12 weeks of dual-task training, Trail-Making Test and Stroop Color-Word Interference Test scores improved, as did scores on the Short Physical Performance Battery. Results of our SMARTfit dual-task training intervention are encouraging. Larger randomized controlled trials must further investigate the development, implementation, and therapeutic impacts of SMARTfit dual-task training on cognitive and physical function in aging.

Dalfampridine benefits ambulation but not cognition in multiple sclerosis.

BACKGROUND: Impaired cognition and ambulation are common in multiple sclerosis (MS). Dalfampridine is the first Food and Drug Administration (FDA)-approved medication to treat impaired ambulation in MS. Dalfampridine may benefit patients with cognitive impairment, given its effects on saltatory conduction and the association between cognitive and motor function. OBJECTIVE: To examine the effects of dalfampridine on cognition in MS. To determine if the anticipated improved cognition is grounded in dalfampridine's effects on ambulation. METHODS: Adults with MS were randomized to dalfampridine (n = 45) or placebo (n = 16) for 12 weeks. Cognition and motor function were assessed at baseline and end-point. RESULTS: T25FW and 6-minute walk (6MW) performance improved at end-point in the treatment group but not in the placebo group (p < 0.05). Our primary outcome, performance on the Symbol Digit Modalities Test, did not improve. About 30% (n = 12) of the dalfampridine group demonstrated ⩾20% improved ambulation and were categorized "responders." Among "responders", Symbol Digit Modalities test performance did not improve. However, performance on the Paced Auditory Serial Addition Test improved among "responders" (p < 0.05). CONCLUSION: Dalfampridine benefits timed ambulation but not cognition. Some improvement among ambulation "responders" is consistent with prior reports of cognition-motor coupling in MS ( ClinicalTrials.gov #: NCT02006160).

Development of a Risk Tool to Support Discussions of Care for Older Adults Admitted to the ICU With Pneumonia.

BACKGROUND: Early, data-driven discussion surrounding palliative care can improve care delivery and patient experience. OBJECTIVE: To develop a 30-day mortality prediction tool for older patients in intensive care unit (ICU) with pneumonia that will initiate palliative care earlier in hospital course. DESIGN: Retrospective Electronic Health Record (EHR) review. SETTING: Four urban and suburban hospitals in a Western New York hospital system. PARTICIPANTS: A total of 1237 consecutive patients (>75 years) admitted to the ICU with pneumonia from July 2011 to December 2014. MEASUREMENTS: Data abstracted included demographics, insurance type, comorbidities, and clinical factors. Thirty-day mortality was also determined. Logistic regression identified predictors of 30-day mortality. Area under the receiver operating curve (ROC) was calculated to quantify the degree to which the model accurately classified participants. Using the coordinates of the ROC, a predicted probability was identified to indicate high risk. RESULTS: A total of 1237 patients were included with 30-day mortality data available for 100% of patients. The mortality rate equaled 14.3%. Age >85 years, having active cancer, Congestive Heart Failure (CHF), Chronic Obstructive Pulmonary Disease (COPD), sepsis, and being on a vasopressor all predicted mortality. Using the derived index, with a predicted probability of mortality >0.146 as a cutoff, sensitivity equaled 70.6% and specificity equaled 65.6%. The area under the ROC was 0.735. CONCLUSION: Our risk tool can help care teams make more informed decisions among care options by identifying a patient group for whom a careful review of goals of care is indicated both during and after hospitalization. External validation and further refinement of the index with a larger sample will improve prognostic value.

Predictors of medical and mental health care use in patients with irritable bowel syndrome in the United States.

Because health care demand among IBS patients imposes a heavy economic burden, identifying high utilizers has potential for improving quality and efficiency of care. Previous research has not identified reliable predictors of utilization of IBS patients. We sought to identify factors predictive of health care utilization among severe IBS patients. 291 IBS patients completed testing whose content mapped onto the Andersen model of health care utilization. 2-stage hurdle models were used to determine predictors of health care use (probability and frequency). Separate analyses were conducted for mental health and medical services. Whether patients used any medical care was predicted by diet and insurance status. Tobacco use, education, and health insurance predicted the probability of using mental health care. The frequency of medical care was associated with alcohol use and physical health status, while frequency of mental health services was associated with marital status, tobacco use, education, distress, stress, and control beliefs over IBS symptoms. For IBS patients, the demand for health care involves a complex decision-making process influenced by many factors. Particularly strong determinants include predisposing characteristics (e.g., dietary pattern, tobacco use) and enabling factors (e.g., insurance coverage) that impede or facilitate demand. Which factors impact use depends on whether the focus is on the decision to use care or how much care is used. Decisions to use medical and mental health care are not simply influenced by symptom-specific factors but by a variety of lifestyle (e.g., dietary pattern, education, smoking) and economic (e.g., insurance coverage) factors.

Extracting Deep Phenotypes for Chronic Kidney Disease Using Electronic Health Records.

INTRODUCTION: As chronic kidney disease (CKD) is among the most prevalent chronic diseases in the world with various rate of progression among patients, identifying its phenotypic subtypes is important for improving risk stratification and providing more targeted therapy and specific treatments for patients having different trajectories of the disease progression. PROBLEM DEFINITION AND DATA: The rapid growth and adoption of electronic health records (EHR) technology has created a unique opportunity to leverage the abundant clinical data, available as EHRs, to find meaningful phenotypic subtypes for CKD. In this study, we focus on extracting disease severity profiles for CKD while accounting for other confounding factors. PROBABILISTIC SUBTYPING MODEL: We employ a probabilistic model to identify precise phenotypes from EHR data of patients who have chronic kidney disease. Using this model, patient's eGFR trajectory is decomposed as a combination of four different components including disease subtype effect, covariate effect, individual long-term effect and individual short-term effect. EXPERIMENTAL RESULTS: The discovered disease subtypes obtained by Probabilistic Subtyping Model for CKD are presented and their clinical relevance is analyzed. DISCUSSION: Several clinical health markers that were found associated with disease subtypes are presented with suggestion for further investigation on their use as risk predictors. Several assumptions in the study are also clarified and discussed. CONCLUSION: The large dataset of EHRs can be used to identify deep phenotypes retrospectively. Directions for further expansion of the model are also discussed.

Positive Predictive Value of a Single Assessment of Estimated GFR in the Diagnosis of Chronic Kidney Disease.

OBJECTIVES: The positive predictive value (PPV) of a single assessment of estimated glomerular filtration rate (eGFR) in the diagnosis of chronic kidney disease (CKD) is not known. Our objective was to determine the PPV of a single assessment of eGFR among adults with at least one eGFR <60 mL/min in their lifetime, using the Distributed Area Research and Therapeutics Network CKD natural history dataset. METHODS: In all, 47,104 adults who were cared for by 113 practices in the United States were included. Proportions of patients in eGFR categories at baseline were calculated using the following categories: <15 mL/min, 15 to 29.99 mL/min, 30 to 44.99 mL/min, and 45 to 59.99 mL/min. Comparisons were then made between the baseline and the endpoint to identify patients who had a follow-up eGFR that remained at <60 mL/min. The proportions of patients in each eGFR category were compared baseline to endpoint using cross-tabulations. To test the proposed cutpoint, the proportions of patients who had an eGFR that remained at <60 mL/min were measured, using the cutpoints that included the highest cumulative proportion of patients. The sensitivity and specificity of that cutpoint were calculated. RESULTS: A cutpoint of <45 mL/min was identified, yielding a PPV of 93% with a sensitivity of 28% and a specificity of 94%. CONCLUSIONS: A valid cutpoint to screen for CKD was identified. This cutpoint may prove important to early screening for CKD while reducing the burden on the healthcare system and patients suspected of having CKD.

Developing a communitywide electronic health record disease registry in primary care practices: lessons learned from the Western new york beacon community.

BACKGROUND AND INTRODUCTION: Disease registries, as part of electronic health records (EHRs), have shown promise in improving care and outcomes. However, little is known about how best to implement them across communities, especially in communities that are not highly integrated. The Western New York (WNY) primary care community consists largely of independent practices using at least 20 different EHR products. This paper discusses the processes undertaken to develop a communitywide EHR disease registry in WNY, improvements it engendered, barriers overcome, and the lessons learned. METHODS: HEALTHeLINK, under the Office of the National Coordinator for Health Information Technology Beacon Community Initiative, reached out to 98 primary care practices in the WNY region to establish EHR-based diabetes registries. Working with practices, community partners, and vendors, registry specifications were created. The registry was piloted with practices using one local vendor's EHR product and then rolled out to other practices, including five other EHR products. Using identified and de-identified registry datasets, quality benchmarking within and between practices and population health management were undertaken. FINDINGS: From 2011 to 2013, the WNY Beacon Community assisted 98 practices (344 providers) serving over 50,000 adult diabetic patients. A major focus was on EHR registry development across diverse systems, and overcoming the challenges this presented. The Beacon diabetes registry was implemented at 85 of the 98 targeted practices. Of these registries, 65 met the criteria described in a later section for quality benchmarking and population health management purposes. Practices received quarterly benchmark reports summarizing their performance on key diabetes quality metrics and were compared to community practice averages. Practices used their registries for population health management by identifying and targeting patients in need of follow-up or specific diabetes-related care. DISCUSSION AND CONCLUSION: The creation of the registry infrastructure required unified registry technical specifications as well as close collaboration between all parties involved. The WNY experience showed that a useful disease registry can be established in a community largely consisting of numerous disparate primary care practices. This laid the groundwork for the future use of EHR data for a variety of purposes in the community. The methods used and lessons learned through this endeavor may benefit other communities in a similar position, with several disconnected EHRs, to establish unified registries.

Type, rather than number, of mental and physical comorbidities increases the severity of symptoms in patients with irritable bowel syndrome.

BACKGROUND & AIMS: Irritable bowel syndrome (IBS) has significant mental and physical comorbidities. However, little is known about the day-to-day burden these comorbidities place on quality of life (QOL), physical and mental function, distress, and symptoms of patients. METHODS: We collected cross-sectional data from 175 patients with IBS, which was diagnosed on the basis of Rome III criteria (median age, 41 years; 78% women), who were referred to 2 specialty care clinics. Patients completed psychiatric interviews, a physical comorbidity checklist, the IBS Symptom Severity Scale, the IBS-QOL instrument, the Brief Symptom Inventory, the abdominal pain intensity scale, and the Short Form-12 Health Survey. RESULTS: Patients with IBS reported an average of 5 comorbidities (1 mental, 4 physical). Subjects with more comorbidities reported worse QOL after adjusting for confounding variables. Multiple linear regression analyses indicated that comorbidity type was more consistently and strongly associated with illness burden indicators than disease counts. Of 10,296 possible physical-mental comorbidity pairs, 6 of the 10 most frequent dyads involved specific conditions (generalized anxiety, depression, back pain, agoraphobia, tension headache, and insomnia). These combinations were consistently associated with greater illness and symptom burdens (QOL, mental and physical function, distress, more severe symptoms of IBS, and pain). CONCLUSIONS: Comorbidities are common among patients with IBS. They are associated with distress and reduced QOL. Specific comorbidities are associated with more severe symptoms of IBS.

The predictive value of micrometastasis in nonsentinel lymph nodes.

The rate of micrometastatic disease (MMD) to nonsentinel lymph nodes (NSLNs) has been shown to vary considerably in the literature. We identified patients with breast cancer with MMD (N1mi) and measured the incidence of NSLN involvement. We then compared these patients with those who had no metastasis to the SLN (N0) and those who had macrometastasis to the SLN (N2) in an attempt to better understand the behavior of patients with N1mi positivity. A retrospective analysis was conducted on 574 patients with invasive breast cancer between January 2000 and December 2007. Patients were stratified into three groups: no metastasis (N0), MMD (N1mi), and macrometastasis (N2). Chi square analysis and logistic regression models using SPSS software were applied to determine significance between groups. MMD rate was 7.7 per cent (44 of 574). Of this subset of patients, 33 underwent completion axillary dissection, and only two were found to have NSLN-positive disease. Statistical significance was achieved for NSLN positivity when comparing all three nodal groups against one another (χ(2)(2, 572) = 337.084, P = 0.000). Logistic regression showed multifocality and lymphovascular invasion to be significant predictors of NSLN metastasis. NSLN positivity in patients with MMD acts similarly to node-positive disease and therefore cannot completely exclude axillary dissection from therapeutic algorithm.

Attitudes of healthcare students and professionals toward patients with physical disability: a systematic review.

OBJECTIVE: Negative healthcare provider attitudes toward patients with physical disabilities may challenge the delivery of quality care to patients. The objective of this study was to systematically review published studies examining the attitudes of healthcare students and professionals toward patients with physical disabilities. DESIGN: In October 2011, we searched four electronic databases using the OVID platform. In addition, we screened citation lists. Independent reviewers completed the selection of articles and data abstraction by triplicate review using standardized and pilot tested forms. They resolved disagreements by discussion or with the help of an additional reviewer when necessary. Articles were included if they examined healthcare professionals' and students' attitudes toward patients with physical disabilities. We did not perform a meta-analysis because of the variation in instruments used and variables examined. We used a qualitative approach to identifying and reporting common findings across the studies. RESULTS: Results indicate that healthcare students and professionals have favorable attitudes toward persons with physical disabilities. More experience with persons with physical disabilities, both professionally and socially, was associated with more favorable attitudes. In addition, female healthcare students and professionals were found to have more positive attitudes toward patients with physical disabilities than do their male colleagues. Limited evidence exists examining the influence of age, race or ethnicity, and rank of student or professional on attitudes toward patients with physical disabilities. Finally, it was found that healthcare students and professionals reported overall more favorable attitudes than did individuals in non-healthcare professions. CONCLUSIONS: Overall, healthcare students' and professionals' attitudes toward persons with physical disabilities were favorable. However, some studies revealed the possibility that some healthcare providers demonstrate fear and anxiety with the challenge of caring for a patient with physical disabilities. Some of the factors associated with providers' attitudes toward patients with physical disabilities are potentially modifiable (e.g., experience) and could be the target of educational interventions to ameliorate this fear and facilitate higher quality care.

IT-enabled systems engineering approach to monitoring and reducing ADEs.

OBJECTIVES: To develop and pilot-test a Web-based implementation of a team resource management (TRM) intervention to improve medication safety in primary care. STUDY DESIGN: Randomized controlled trial. METHODS: Eight practices were randomized to either the Web-based TRM or usual practice (4 practices in each group). Primary outcome was adverse drug events (ADEs) in older adults, ascertained using a trigger tool chart review at two 12-month periods (before and after the intervention). The prospective TRM approach, designed to inculcate ownership and empowerment, facilitates systematic appraisal of risk and error reduction. This approach uses the highly adaptable and transferable Safety Enhancement and Monitoring Instrument that is Patient Centered. RESULTS: The rate of ADEs decreased from 25.8 to 18.3 per 100 patients per year in the intervention group. The rate was virtually unchanged in the control group (24.3 vs 24.8). In an analysis of covariance at the practice level, being in the intervention group was associated with a lower rate of ADEs. The interaction between time (preintervention vs postintervention) and group (intervention vs control) was not signifi cant (P = .104) but showed a trend toward a decrease in the intervention group compared with the control group over time. CONCLUSIONS: The Web-based TRM intervention proved feasible and demonstrated potential for effectiveness in various ambulatory settings. This pilot study was limited by small size and short follow-up period. Future studies should test the intervention on a larger scale over a longer period of time and should explore methods for overcoming common barriers to change.

High prevalence of undetected vitamin D deficiency in an urban minority primary care practice.

OBJECTIVES: To assess the prevalence of vitamin D deficiency among patients in an inner-city practice with a large African American population, and to evaluate the efficacy of vitamin D replacement as part of routine care. METHODS: A chart review was undertaken to identify patients aged 18 years and more with at least one 25-hydroxyvitamin D level. When patients were found to be deficient (vitamin D < 20) they were placed on 50000 units ergocalciferol monthly or over-the-counter calcium supplements with vitamin D. Descriptive statistics were used to calculate the prevalence rate, and paired t tests were used to compare the vitamin D levels pre and post treatment. RESULTS: A total of 369 (65%) out of 570 patients were found to be vitamin D deficient, and 253 were treated with ergocalciferol or vitamin D supplements. For patients deficient at baseline and treated with vitamin D supplementation (n = 253), significant differences were found between baseline and follow-up vitamin D levels (t(1,120) = 11.56, p < .001). Among 253 patients deficient at baseline and treated, 201 were corrected with oral vitamin D (79%), leaving 52 patients (21%) deficient after vitamin D supplementation. CONCLUSIONS: The results of this study show that there is a very high prevalence of vitamin D deficiency in an urban, mostly African American population. This can be readily improved with the addition of oral vitamin D. The study also suggests that routine vitamin D screening may be helpful for the detection and treatment of vitamin D deficiency, especially in urban minority populations.