Browsing by Subject "utilization"
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Item Advancing cognitive engineering methods to support user interface design for electronic health records(Elsevier, 2014-04) Thyvalikakath, Thankam P.; Dziabiak, Michael P.; Johnson, Raymond; Torres-Urquidy, Miguel Humberto; Acharya, Amit; Yabes, Jonathan; Schleyer, Titus K.; Department of Cariology, Operative Dentistry and Dental Public Health, IU School of DentistryBackground Despite many decades of research on the effective development of clinical systems in medicine, the adoption of health information technology to improve patient care continues to be slow, especially in ambulatory settings. This applies to dentistry as well, a primary care discipline with approximately 137,000 practitioners in the United States. A critical reason for slow adoption is the poor usability of clinical systems, which makes it difficult for providers to navigate through the information and obtain an integrated view of patient data. Objective In this study, we documented the cognitive processes and information management strategies used by dentists during a typical patient examination. The results will inform the design of a novel electronic dental record interface. Methods We conducted a cognitive task analysis (CTA) study to observe ten general dentists (five general dentists and five general dental faculty members, each with more than two years of clinical experience) examining three simulated patient cases using a think-aloud protocol. Results Dentists first reviewed the patient’s demographics, chief complaint, medical history and dental history to determine the general status of the patient. Subsequently, they proceeded to examine the patient’s intraoral status using radiographs, intraoral images, hard tissue and periodontal tissue information. The results also identified dentists’ patterns of navigation through patient’s information and additional information needs during a typical clinician-patient encounter. Conclusion This study reinforced the significance of applying cognitive engineering methods to inform the design of a clinical system. Second, applying CTA to a scenario closely simulating an actual patient encounter helped with capturing participants’ knowledge states and decision-making when diagnosing and treating a patient. The resultant knowledge of dentists’ patterns of information retrieval and review will significantly contribute to designing flexible and task-appropriate information presentation in electronic dental records.Item Blood use in sub‐Saharan Africa: a systematic review of current data(Wiley, 2019-07) Dhabangi, Aggrey; Dzik, Walter H.; Idro, Richard; John, Chandy C.; Butler, Elissa K.; Spijker, Rene; van Hensbroek, Michael B.; Pediatrics, School of MedicineBackground: Data on the use of blood products in sub-Saharan Africa (SSA) are scarce. A systematic review of published data on blood utilization according to diagnosis in SSA was performed. Study design and methods: Studies published from January 2000 to June 2018 were searched in PubMed, Embase and African Index Medicus. Data were extracted and synthesized. The proportion of blood products used for different diagnostic categories is presented. Results: 37 studies representing 159,746 transfusions to 96,690 patients from 14 countries in SSA were included. Data from six of 37 studies were pooled to determine blood product use according to diagnosis. The primary diagnostic categories were pediatric malaria (20%), sickle cell anemia [SCA] (18%), obstetric hemorrhage (16%), and other causes of bleeding (16%). About 8%, 6% and 2% of products were used for other infections, cancer treatment, and surgery respectively. Overall, 58.5% of the products transfused were red blood cells, 31.7 % whole blood, 7.2% fresh frozen plasma, and 2.6% as platelets. Estimated blood product use per population in SSA was 5.3 transfusions per 1000 people, compared with 52 and 34 per thousand for Australia and United States respectively. Conclusion: This study provides a systematic attempt to quantify blood utilization for SSA. Blood products in SSA are used primarily for pediatric malaria, SCA, obstetric hemorrhage and other causes of bleeding. Studies such as this represent an important early step towards improving hemovigilance in SSA.Item Effect of Advanced Access Scheduling on Processes and Intermediate Outcomes of Diabetes Care and Utilization(2009-03) Subramanian, Usha; Ackermann, Ronald T.; Brizendine, Edward J.; Saha, Chandan; Rosenman, Marc B.; Willis, Deanna R.; Marrero, David G.BACKGROUND The impact of open access (OA) scheduling on chronic disease care and outcomes has not been studied. OBJECTIVE To assess the effect of OA implementation at 1 year on: (1) diabetes care processes (testing for A1c, LDL, and urine microalbumin), (2) intermediate outcomes of diabetes care (SBP, A1c, and LDL level), and (3) health-care utilization (ED visits, hospitalization, and outpatient visits). METHODS We used a retrospective cohort study design to compare process and outcomes for 4,060 continuously enrolled adult patients with diabetes from six OA clinics and six control clinics. Using a generalized linear model framework, data were modeled with linear regression for continuous, logistic regression for dichotomous, and Poisson regression for utilization outcomes. RESULTS Patients in the OA clinics were older, with a higher percentage being African American (51% vs 34%) and on insulin. In multivariate analyses, for A1c testing, the odds ratio for African-American patients in OA clinics was 0.47 (CI: 0.29-0.77), compared to non-African Americans [OR 0.27 (CI: 0.21-0.36)]. For urine microablumin, the odds ratio for non-African Americans in OA clinics was 0.37 (CI: 0.17-0.81). At 1 year, in adjusted analyses, patients in OA clinics had significantly higher SBP (mean 6.4 mmHg, 95% CI 5.4 – 7.5). There were no differences by clinic type in any of the three health-care utilization outcomes. CONCLUSION OA scheduling was associated with worse processes of care and SBP at 1 year. OA clinic scheduling should be examined more critically in larger systems of care, multiple health-care settings, and/or in a randomized controlled trial.Item Effect of Hospice Use on Costs of Care for Long-Stay Nursing Home Decedents(Wiley Blackwell (Blackwell Publishing), 2016-04) Unroe, Kathleen T.; Sachs, Greg A.; Dennis, M. E.; Hickman, Susan E.; Stump, Timothy E.; Tu, Wanzhu; Callahan, Christopher M.; Medicine, School of MedicineOBJECTIVES: To analyze the costs for long-stay (>90 days) nursing home (NH) decedents with and without hospice care. DESIGN: Retrospective cohort study using a 1999-2009 data set of linked Medicare and Medicaid claims and minimum data set (MDS) assessments. SETTING: Indiana NHs. PARTICIPANTS: Long-stay NH decedents (N = 2,510). MEASUREMENTS: Medicare costs were calculated for 2, 7, 14, 30, 90, and 180 days before death; Medicaid costs were calculated for dual-eligible beneficiaries. Total costs and costs for hospice, NH, and inpatient care are reported. RESULTS: Of 2,510 long-stay NH decedents, 35% received hospice. Mean length of hospice was 103 days (median 34 days). Hospice users were more likely to have cancer (P < .001), a do-not-resuscitate order in place (P < .001), greater cognitive impairment (P < .001), and worse activity of daily living (ADL) function (P < .001) and less likely to have had a hospitalization in the year before death (P < .001). In propensity score analyses, hospice users had lower total Medicare costs for all time periods up to and including 90 days before death. For dually eligible beneficiaries, overall costs and Medicare costs were significantly lower for hospice users up to 30 days before death. Medicaid costs were not different between the groups except for the 2-day time period. CONCLUSION: In this analysis of costs to Medicare and Medicaid for long-stay NH decedents, use of hospice did not increase costs in the last 6 months of life. Evidence supporting cost savings is sensitive to analyses that vary the time period before death.Item Health Outcomes and Cost of Care Among Older Adults with Schizophrenia: A 10-Year Study Using Medical Records across the Continuum of Care(Elsevier, 2014-05) Hendrie, Hugh C.; Tu, Wanzhu; Tabbey, Rebeka; Purnell, Christianna E.; Ambuehl, Roberta J.; Callahan, Christopher M.; Department of Psychiatry, IU School of MedicineObjectives The population of older patients with schizophrenia is increasing. This study describes health outcomes, utilization, and costs over 10 years in a sample of older patients with schizophrenia compared to older patients without schizophrenia. Design, Setting, Participants An observational cohort study of 31,588 older adults (mean age 70.44 years) receiving care from an urban public health system, including a community mental health center, during 1999–2008. 1635 (5.2%) were diagnosed with schizophrenia and 757 (2.4%) had this diagnosis confirmed in the community mental health center. Patients’ electronic medical records were merged with Medicare claims, Medicaid claims, the Minimum Dataset, and the Outcome and Assessment Information Set. Information on medication use was not available. Measurements Rates of comorbid conditions, health care utilization, costs, and mortality. Results Patients with schizophrenia had significantly higher rates of congestive heart failure (45.05% v. 38.84%), chronic obstructive pulmonary disease (52.71% v. 41.41%), and hypothyroidism (36.72% v. 26.73%) than the patients without schizophrenia (p<0.001). They had significantly lower rates of cancer (30.78% v. 43.18%) and significantly higher rates of dementia (64.46% v. 32.13%). The patients with schizophrenia had significantly higher mortality risk (HR: 1.25, CI: 1.07–1.47) than the patients without schizophrenia. They also had significantly higher rates of health care utilization. The mean costs for Medicare and Medicaid were significantly higher for the patients with schizophrenia than for the patients without schizophrenia. Conclusions The management of older adult patients with schizophrenia is creating a serious burden for our health care system, requiring the development of integrated models of health care.Item Intimate Partner Violence and Correlates With Risk Behaviors and HIV/STI Diagnoses Among Men Who Have Sex With Men and Men Who Have Sex With Men and Women in China: A Hidden Epidemic(Ovid Technologies (Wolters Kluwer) - Lippincott Williams & Wilkins, 2015-07) Davis, Alissa; Best, John; Wei, Chongyi; Luo, Juhua; Van Der Pol, Barbara; Meyerson, Beth; Dodge, Brian; Aalsma, Matthew; Tucker, Joseph; Social Entrepreneurship for Sexual Health Research Group; Department of Pediatrics, IU School of MedicineBACKGROUND: Intimate partner violence (IPV) research has primarily focused on heterosexual couples but has largely ignored IPV among men who have sex with men (MSM). We examined IPV prevalence among MSM and men who have sex with men and women (MSMW) in China. METHODS: Men who have sex with men older than 16 years were recruited through 3 MSM-focused Web sites in China. An online survey containing items on sociodemographics, risk behaviors, IPV, and self-reported HIV or sexually transmitted infection diagnosis was completed. Multivariate regression was used to examine associations between IPV and risk behaviors and an HIV or sexually transmitted infection diagnosis. RESULTS: Among 610 participants, 182 (29.8%) reported experiencing at least 1 type of IPV. Men who have sex with both men and women were at significantly greater risk for IPV (adjusted odds ratio [AOR], 1.65; 95% confidence interval [CI], 1.08-2.53) compared with MSM. Men who had experienced IPV were more likely to have participated in group sex (AOR, 1.86; 95% CI, 1.08-3.21), to have had sex in exchange for gifts or money (AOR, 5.06; 95% CI, 2.47-10.35), and to report a positive HIV diagnosis (AOR, 2.59; 95% CI, 1.22-5.51). CONCLUSIONS: There is a hidden epidemic of IPV among MSM in China, especially among MSMW. The hidden nature of MSM and MSMW suggests the need for a clinical environment more conducive to disclosure. Research is needed to understand the pathways linking IPV and HIV risk among MSM to optimize the design of effective interventions.Item Postpartum contraceptive use and unmet need for family planning in five low-income countries(Springer (Biomed Central Ltd.), 2015) Pasha, Omrana; Goudar, Shivaprasad S.; Patel, Archana; Garces, Ana; Esamai, Fabian; Chomba, Elwyn; Moore, Janet L.; Kodkany, Bhalchandra S.; Saleem, Sarah; Derman, Richard J.; Liechty, Edward A.; Hibberd, Patricia L.; Hambidge, K. Michael; Krebs, Nancy F.; Carlo, Waldemar A.; McClure, Elizabeth M.; Koso-Thomas, Marion; Goldenberg, Robert L.; Department of Pediatrics, IU School of MedicineBACKGROUND: During the post-partum period, most women wish to delay or prevent future pregnancies. Despite this, the unmet need for family planning up to a year after delivery is higher than at any other time. This study aims to assess fertility intention, contraceptive usage and unmet need for family planning amongst women who are six weeks postpartum, as well as to identify those at greatest risk of having an unmet need for family planning during this period. METHODS: Using the NICHD Global Network for Women's and Children's Health Research's multi-site, prospective, ongoing, active surveillance system to track pregnancies and births in 100 rural geographic clusters in 5 countries (India, Pakistan, Zambia, Kenya and Guatemala), we assessed fertility intention and contraceptive usage at day 42 post-partum. RESULTS: We gathered data on 36,687 women in the post-partum period. Less than 5% of these women wished to have another pregnancy within the year. Despite this, rates of modern contraceptive usage varied widely and unmet need ranged from 25% to 96%. Even amongst users of modern contraceptives, the uptake of the most effective long-acting reversible contraceptives (intrauterine devices) was low. Women of age less than 20 years, parity of two or less, limited education and those who deliver at home were at highest risk for having unmet need. CONCLUSIONS: Six weeks postpartum, almost all women wish to delay or prevent a future pregnancy. Even in sites where early contraceptive adoption is common, there is substantial unmet need for family planning. This is consistently highest amongst women below the age of 20 years. Interventions aimed at increasing the adoption of effective contraceptive methods are urgently needed in the majority of sites in order to reduce unmet need and to improve both maternal and infant outcomes, especially amongst young women. STUDY REGISTRATION: Clinicaltrials.gov (ID# NCT01073475).Item Transitions in Care in a Nationally Representative Sample of Older Americans with Dementia(Wiley Blackwell (Blackwell Publishing), 2015-08) Callahan, Christopher M.; Tu, Wanzhu; Unroe, Kathleen T.; LaMantia, Michael A.; Stump, Timothy E.; Clark, Daniel O.; Department of Medicine, IU School of MedicineOBJECTIVES: To describe transitions in care for older adults with dementia identified from a nationally representative cohort and to describe transition rates in those with more-severe levels of cognitive and functional impairment. DESIGN: Longitudinal cohort study. SETTING: Health and Retirement Study (HRS). PARTICIPANTS: HRS respondents aged 65 and older whose survey data were linked with Medicare claims from 1999 to 2008 (N = 16,186). MEASUREMENTS: Transitions in care between home, home with formal services, hospital, and nursing facility care; cognitive function; activities of daily living; and mortality. RESULTS: The 3,447 (21.3%) HRS subjects who were ever diagnosed with dementia experienced frequent transitions. Of subjects transitioning from a hospital stay, 52.2% returned home without home care services, and 33.8% transitioned to a nursing facility. Of subjects transitioning from a nursing facility, 59.2% transitioned to the hospital, and 25.3% returned home without services. There were 2,139 transitions to death, and 58.7% of HRS subjects with dementia died at home. Even in persons with moderate to severe dementia, multiple transitions in care were documented, including transitions from the hospital to home and back to the hospital. CONCLUSION: In this nationally representative sample of older adults, subjects diagnosed with dementia experience frequent transitions. Persons with dementia who are cared for at home and who transition back to home often have moderate to severe impairments in function and cognition.Item Utilization Rates of Implantable Cardioverter-Defibrillators for Primary Prevention of Sudden Cardiac Death: A 2012 Calculation for a Midwestern Health Referral Region(Elsevier, 2014-05) Hoang, Allen; Shen, Changyu; Zheng, James; Taylor, Stanley; Groh, William J; Rosenman, Marc; Buxton, Alfred E.; Chen, Peng-Sheng; Department of Medicine, IU School of MedicineBackground Utilization rates (URs) for implantable cardioverter-defibrillators (ICDs) for primary prevention of sudden cardiac death (PPSCD) are lacking in the community. Objective To establish the ICD UR in central Indiana. Methods A query run on two hospitals in a health information exchange database in Indianapolis identified patients between 2011 and 2012 with left ventricular ejection fraction (EF) ≤0.35. ICD-eligibility and utilization were determined from chart review. Results We identified 1,863 patients with at least one low-EF study. Two cohorts were analyzed: 1,672 patients without, and 191 patients with, ICD-9-CM procedure code 37.94 for ICD placement. We manually reviewed a stratified (by hospital) random sample of 300 patients from the no-ICD procedure code cohort and found that 48 (16%) had no ICD but had class I indications for ICD. Eight of 300 (2.7%) actually had ICD implantation for PPSCD. Review of all 191 patients in the ICD procedure code cohort identified 70 with ICD implantation for PPSCD. The ICD UR (ratio between patients with ICD for PPSCD and all with indication) was 38% overall (95% CI 28–49%). URs were 48% for males (95% CI 34–61%), 21% for females (95% CI 16–26%, p=0.0002 vs males), 40% for whites (95% CI 27–53%), and 37% for blacks (95% CI 28–46%, p=0.66 vs whites). Conclusions The ICD UR is 38% among patients meeting Class I indications, suggesting further opportunities to improve guideline compliance. Furthermore, this study illustrates limitations in calculating ICD UR using large electronic repositories without hands-on chart review.