Trends of hypertensive disorders of pregnancy among the Medicaid population before and during COVID-19.

Hypertensive disorders of pregnancy (HDP) are a group of high blood pressure disorders during pregnancy that are a leading cause of maternal and infant morbidity and mortality. The trend of HDP among the Medicaid population during the coronavirus disease of 2019 (COVID-19) is severely lacking. To determine the trends in the annual prevalence of HDP among Louisiana Medicaid pregnant women before and during the COVID-19 pandemic (2016-2021), a total of 113,776 pregnant women aged 15-50 years was included in this study. For multiparous individuals, only the first pregnancy was used in the analyses. Women with a diagnosis of each type-specific HDP were identified by using the ICD-10 codes. The prevalence of HDP increased from 10.5% in 2016 to 17.7% in 2021. The highest race/ethnicity-specific incidence of HDP was seen in African American women (13.1%), then white women (9.4%), followed by other women (7.9%). HDP remains as a very prevalent and significant global health issue, especially in African American women. Obesity and physical inactivity are major risk factors of HDP, which became amplified during the COVID-19 pandemic and led to a higher prevalence of HDP. Severe HDP substantially increases the risk of mortality in offspring and long-term issues in both the mother and infant. This is very pertinent to the Medicaid population due to the disparities and barriers that diminish the quality of healthcare they receive.

A Systematic Approach to Assessing and Addressing Palliative Care Needs in an Outpatient Population.

CONTEXT/OBJECTIVES: A critical frontier for palliative medicine is to develop systems to routinely and equitably address the palliative care (PC) needs of seriously ill populations. METHODS: An automated screen identified Medicare primary care patients who had serious illness based on diagnosis codes and utilization patterns. A stepped-wedge design was used to evaluate a six-month intervention through which a healthcare navigator assessed these seriously ill patients and their care partners for PC needs in the domains of 1) physical symptoms, 2) emotional distress, 3) practical concerns, and 4) advance care planning (ACP) via telephone surveys. Identified needs were addressed with tailored PC interventions. RESULTS: A total of 292/2175 (13.4%) patients screened positive for serious illness. A total of 145 completed an intervention phase; 83 completed a control phase. Severe physical symptoms were identified in 27.6%, emotional distress in 57.2%, practical concerns in 37.2%, and ACP needs in 56.6%. Twenty-five intervention patients (17.2%) were referred to specialty PC compared to six control patients (7.2%). Prevalence of ACP notes increased 45.5%-71.7% (p = 0.001) during the intervention and remained stable during the control phase. Quality of life remained stable during the intervention and declined 7.4/10-6.5/10 (P =0.04) during the control phase. CONCLUSION: Through an innovative program, patients with serious illness were identified from a primary care population, assessed for PC needs, and offered specific services to meet those needs. While some patients were appropriate for specialty PC, even more needs were addressed without specialty PC. The program resulted in increased ACP and preserved quality of life.

Honoring What We Say We Do: Developing Real-World Tools for Routine Family Caregiver Assessment and Support in Outpatient Palliative Care.

Background: Family caregivers are essential to the care of patients with serious illness and supporting caregivers alongside patients is a core tenet of palliative care. While there is increasing recognition of the need to support family caregivers, there are limited resources to assess and support their needs in a systematic way in outpatient palliative care practice. Objectives: The aim of this study is to develop an approach to conducting assessments of routine needs and support of family caregivers in outpatient palliative care practice using a quality improvement framework. Setting: Seven, interdisciplinary, outpatient palliative care teams in California collaborated in this study. Measurements: Family caregivers were surveyed about levels of distress and support using a 10-point scale and asked about specific areas of need for support. Usefulness of a supportive caregiver resource was also measured on a 10-point scale, in addition to qualitative assessment of clinician satisfaction and feasibility of routine caregiver assessment and support. Results: Seven hundred thirty-six caregiver needs assessments were conducted and 44 supportive tool kits were distributed. A majority of family caregivers reported moderate or severe distress related to caregiving (score ≥4 on a 10-point scale). The most common sources of distress included emotional distress, worry caregiving was negatively impacting their own health, and planning for the future. Most caregivers reported feeling moderately or very well supported, most commonly by family, friends, and faith/spirituality. Caregivers rated the supportive tool kit an 8.4 on a 10-point usefulness scale and 92% would recommend it to others. Conclusions: We successfully developed and piloted practical clinical tools for routine family caregiver screening and support.

Evaluating a social risk screening and referral program in an urban safety-net hospital emergency department.

Objective: The emergency department (ED) is an opportune venue to screen for unmet social needs and connect patients with social services. This quality improvement study incorporates both qualitative and quantitative data to examine unmet social needs among ED patients and program implementation. Methods: From September 2020 to December 2021, an urban safety-net hospital adult ED implemented a social needs screening and referral program. Trained emergency staff screened eligible patients for 5 social needs (housing, food, transportation, utilities, employment), giving resource guides to patients who screened positive (THRIVE+). We collected screening data from the electronic health record, conducted semi-structured interviews with THRIVE+ patients and clinical staff, and directly observed discharge interactions. Results: Emergency staff screened 58.5% of eligible patients for social risk. Of the screened patients, 27.0% reported at least 1 unmet social need. Of those, 74.8% requested assistance. Screened patients reported housing insecurity (16.3%) as the most prevalent unmet social need followed by food insecurity (13.3%) and unemployment (8.7%). Among interviewed patients, 57.1% recalled being screened, but only 24.5% recalled receiving resource guides. Patients who received guides reported little success connecting with resources and supported universal guide dissemination. Staff expressed preference for warm handoff to social services. Of 13 observed discharge interactions, clinical staff only discussed guides with 2 patients, with no positive endorsement of the guides in any observed interactions. Conclusions: An ED social needs screening program can be moderately feasible and accepted. We identified housing as the most prevalent need. Significant gaps exist between screening and referral, with few patients receiving resources. Further training and workflow optimization are underway.

Transmission prevention behaviors in US households with SARS-CoV-2 cases in 2020.

Introduction: Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) transmission frequently occurs within households, yet few studies describe which household contacts and household units are most likely to engage in transmission-interrupting behaviors. Methods: We analyzed a COVID-19 prospective household transmission cohort in North Carolina (April to October 2020) to quantify changes in physical distancing behaviors among household contacts over 14 days. We evaluated which household contacts were most likely to ever mask at home and to ever share a bedroom with the index case between days 7-14. Results: In the presence of a household COVID-19 infection, 24% of household contacts reported ever masking at home during the week before study entry. Masking in the home between days 7-14 was reported by 26% of household contacts and was more likely for participants who observed their household index case wearing a mask. Participants of color and participants in high-density households were more likely to mask at home. After adjusting for race/ethnicity, living density was not as clearly associated with masking. Symptomatic household contacts were more likely to share a bedroom with the index case. Working individuals and those with comorbidities avoided sharing a bedroom with the index case. Discussion: In-home masking during household exposure to COVID-19 was infrequent in 2020. In light of the ongoing transmission of SARS-CoV-2, these findings underscore a need for health campaigns to increase the feasibility and social desirability of in-home masking among exposed household members. Joint messaging on social responsibility and prevention of breakthrough infections, reinfections, and long COVID-19 may help motivate transmission-interruption behaviors.

Classification of disease recurrence using transition likelihoods with expectation-maximization algorithm.

When an infectious disease recurs, it may be due to treatment failure or a new infection. Being able to distinguish and classify these two different outcomes is critical in effective disease control. A multi-state model based on Markov processes is a typical approach to estimating the transition probability between the disease states. However, it can perform poorly when the disease state is unknown. This article aims to demonstrate that the transition likelihoods of baseline covariates can distinguish one cause from another with high accuracy in infectious diseases such as malaria. A more general model for disease progression can be constructed to allow for additional disease outcomes. We start from a multinomial logit model to estimate the disease transition probabilities and then utilize the baseline covariate's transition information to provide a more accurate classification result. We apply the expectation-maximization (EM) algorithm to estimate unknown parameters, including the marginal probabilities of disease outcomes. A simulation study comparing our classifier to the existing two-stage method shows that our classifier has better accuracy, especially when the sample size is small. The proposed method is applied to determining relapse vs reinfection outcomes in two Plasmodium vivax treatment studies from Cambodia that used different genotyping approaches to demonstrate its practical use.

Assessment of the Abbott BinaxNOW SARS-CoV-2 rapid antigen test against viral variants of concern.

As the emergence of SARS-CoV-2 variants brings the global pandemic to new levels, the performance of current rapid antigen tests against variants of concern and interest (VOC/I) is of significant public health concern. Here, we report assessment of the Abbot BinaxNOW COVID-19 Antigen Self-Test. Using genetically sequenced remnant clinical samples collected from individuals positive for SARS-CoV-2, we assessed the performance of BinaxNOW against the variants that currently pose public health threats. We measured the limit of detection of BinaxNOW against various VOC/I in a blinded manner. BinaxNOW successfully detected the Omicron (B.1.1.529), Mu (B.1.621), Delta (B.1.617.2), Lambda (C.37), Gamma (P.1), Alpha (B.1.1.7), Beta (B.1.351), Eta (B.1.525), and P.2 variants and at low viral concentrations. BinaxNOW also detected the Omicron variant in individual remnant clinical samples. Overall, these data indicate that this inexpensive and simple-to-use, FDA-authorized and broadly distributed rapid test can reliably detect Omicron, Delta, and other VOC/I.

Assessment of the Field Utility of a Rapid Point-of-Care Test for SARS-CoV-2 Antibodies in a Household Cohort.

Point-of-care (POC) tests to detect SARS-CoV-2 antibodies offer quick assessment of serostatus after natural infection or vaccination. We compared the field performance of the BioMedomics COVID-19 IgM/IgG Rapid Antibody Test against an ELISA in 303 participants enrolled in a SARS-CoV-2 household cohort study. The rapid antibody test was easily implemented with consistent interpretation across 14 users in a variety of field settings. Compared with ELISA, detection of seroconversion lagged by 5 to 10 days. However, it retained a sensitivity of 90% (160/177, 95% confidence interval [CI] 85-94%) and specificity of 100% (43/43, 95% CI 92-100%) for those tested 3 to 5 weeks after symptom onset. Sensitivity was diminished among those with asymptomatic infection (74% [14/19], 95% CI 49-91%) and early in infection (45% [29/64], 95% CI 33-58%). When used appropriately, rapid antibody tests offer a convenient way to detect symptomatic infections during convalescence.

COVID-19 and eating disorder and mental health concerns in patients with eating disorders.

BACKGROUND: The Coronavirus (COVID-19) pandemic dramatically transformed daily life for adolescents and young adults, altering social and physical environments. Previous research has shown such shifts in daily life to be especially challenging for people living with eating disorders (ED). However, the extent of this environmental change on ED symptoms and mental health (MH) has been relatively unexplored in patients with EDs. This study examines how young people with EDs feel the COVID-19 pandemic has affected their living environments as well as their ED and MH symptoms and motivation for ED recovery. METHODS: Participants were enrollees in the Registry of Eating Disorders and their Co-morbidities OVER time in Youth (RECOVERY) who responded to an additional survey (n = 89) in July 2020 to assess their perceptions of the impact of the COVID-19 pandemic. Participants reported on concerns of their ED worsening due to increased time living in a "triggering environment" due to the pandemic as well as perceived COVID-related changes in intrusive ED thoughts, depression, anxiety, isolation, and motivation to recover. Logistic regression models, adjusted for age and ED diagnosis, examined the association of triggering environment with ED and MH symptoms. RESULTS: The majority of respondents reported concern for worsening of their ED due to a "triggering environment" (63%). Most reported an increase in ED thoughts (74%), feelings of anxiety (77%), depression (73%), and isolation (80%) they perceived to be related to the pandemic. Nearly one-third reported decrease in motivation to recover (29%) they perceived to be related to the pandemic. After adjusting for age and ED diagnosis, participants who reported concern for worsening of their ED due to a triggering environment had nearly 18 times the odds of decreased motivation to recover (OR 18.1; 95% CI 3.37-97.4, p = 0.003) and nearly 24 times the odds of increased ED thoughts (OR 23.8; 95% CI 4.31-131.6, p < 0.001) compared to those who did not report concern for worsening of their ED due to a triggering environment. CONCLUSIONS: Our findings demonstrate the perceived negative impact the COVID-19 pandemic has had on the self-reported ED and MH symptoms in patients with EDs, particularly in those who report concern for a negative environmental change. These results underscore the need for heightened monitoring of patients with EDs during the pandemic.

The COVID-19 pandemic and subsequent stay-at-home orders implemented across the world dramatically altered daily life for people of all ages. Previous research has detailed the profound impact the pandemic has had on mental health (MH), particularly among individuals with eating disorders (ED) [22]. This study explored how individuals with eating disorders perceive the COVID-19 pandemic to have impacted their ED symptoms and overall MH. Participants included adolescent/young adults (AYAs) with a diagnosed ED who were given a four-part survey on how they perceive the COVID-19 pandemic to have affected their ED symptoms and treatment and MH (89 participants). AYAs in the study reported feeling that their ED symptoms and MH concerns worsened due to the pandemic. Those who reported concern that their ED would worsen due to a "triggering" living environment were even more likely to report feeling that their ED and MH worsened due to the pandemic. A large percentage of participants also reported a decreased motivation to recover from their ED that they attributed to the pandemic. Overall, individuals with EDs may be at risk for worsening symptoms during the COVID-19 pandemic. Our results underscore the need for increased monitoring of patients with EDs during the pandemic.

Unmet Health and Social Welfare Needs of Women Who Inject Drugs in San Francisco.

We characterize social welfare and health care needs of women who inject drugs in a community-based survey in San Francisco. A total of 139 women were enrolled; 74.8% were homeless, and 67.6% earned below poverty level. Indicators of health care and prevention program access included: 95.7% with health insurance, 90.6% used a needle exchange program, and 58.2% tested for HIV two or more times. However, only 8.6% received HPV vaccination and there was unmet contraception need for 79.0% of women. Only 28.7% of those testing positive for HCV infection had received treatment. Physical and sexual violence in the last year were common (41.0% and 18.0%, respectively). Women who inject drugs would benefit from integrated health and social services including addressing interpersonal violence, sexual and reproductive health, and HIV and HCV prevention needs. Women-only needle exchange programs and safe injection sites may be effective delivery points for these services.

Global Fund contributions to health security in ten countries, 2014-20: mapping synergies between vertical disease programmes and capacities for preventing, detecting, and responding to public health emergencies.

BACKGROUND: The Global Fund to Fight AIDS, Tuberculosis and Malaria is a robust vertical global health programme. The extent to which vertical programmes financially support health security has not been investigated. We, therefore, endeavoured to quantify the extent to which the budgets of this vertical programme support health security. We believe this is a crucial area of work as the global community works to combine resources for COVID-19 response and future pandemic preparedness. METHODS: We examined budgets for work in Kenya, Uganda, Vietnam, Democratic Republic of the Congo, Guatemala, Guinea, India, Indonesia, Nigeria, and Sierra Leone from January, 2014 to December, 2020. These ten countries were selected because of the robustness of investments and the availability of data. Using the International Health Regulations Joint External Evaluation (JEE) tool as a framework, we mapped budget line items to health security capacities. Two researchers independently reviewed each budget and mapped items to the JEE. Budgets were then jointly reviewed until a consensus was reached regarding if an item supported health security directly, indirectly, or not at all. The budgets for the study countries were inputted into a single Microsoft Excel spreadsheet and line items that mapped to JEE indicators were scaled up to their respective JEE capacity. Descriptive analyses were then done to determine the total amount of money budgeted for activities that support health security, how much was budgeted for each JEE capacity, and how much of the support was direct or indirect. FINDINGS: The research team reviewed 37 budgets. Budgets totalled US$6 927 284 966, and $2 562 063 054 (37·0%) of this mapped to JEE capacities. $1 330 942 712 (19·2%) mapped directly to JEE capacities and $1 231 120 342 (17·8%) mapped indirectly to JEE capacities. Laboratory systems, antimicrobial resistance, and the deployment of medical countermeasures and personnel received the most overall budgetary support; laboratory systems, antimicrobial resistance, and workforce development received the greatest amount of direct budgetary support. INTERPRETATION: Over one-third of the Global Fund's work also supports health security and the organisation has budgeted more than $2 500 000 000 for activities that support health security in ten countries since 2014. Although these funds were not budgeted specifically for health security purposes, recognising how vertical programmes can synergistically support other global health efforts has important implications for policy related to health systems strengthening. FUNDING: Resolve to Save Lives: An Initiative of Vital Strategies.

Identification of osimertinib-resistant EGFR L792 mutations by cfDNA sequencing: oncogenic activity assessment and prevalence in large cfDNA cohort.

Cell-free DNA (cfDNA) next-generation sequencing has the potential to capture tumor heterogeneity and genomic evolution under treatment pressure in a non-invasive manner. Here, we report the detection of EGFR L792 mutations, a non-covalent mechanism of osimertinib resistance, using Guardant360 cfDNA testing in a patient with metastatic EGFR-mutant non-small cell lung cancer (NSCLC) whose disease progressed on osimertinib. We subsequently analyzed a large cohort of over 1800 additional patient samples harboring an EGFR T790M mutation and identified a concomitant L792 mutation in a total of 22 (1.2%) cases. In vitro functional assays demonstrated that the EGFR L858R/T790M/L792F/H mutations conferred intermediate-level resistance to osimertinib. Further understanding of potential acquired resistance mechanisms to targeted therapy may help inform treatment strategy in EGFR-mutant NSCLC.

Gametocyte Carriage, Antimalarial Use, and Drug Resistance in Cambodia, 2008-2014.

Gametocytes are the malaria parasite stages responsible for transmission from humans to mosquitoes. Gametocytemia often follows drug treatment, especially as therapies start to fail. We examined Plasmodium falciparum gametocyte carriage and drug resistance profiles among 824 persons with uncomplicated malaria in Cambodia to determine whether prevalent drug resistance and antimalarial use has led to a concentration of drug-resistant parasites among gametocyte carriers. Although report of prior antimalarial use increased from 2008 to 2014, the prevalence of study participants presenting with microscopic gametocyte carriage declined. Gametocytemia was more common in those reporting antimalarial use within the past year, and prior antimalarial use was correlated with higher IC50s to piperaquine and mefloquine, as well as to increased pfmdr1 copy number. However, there was no association between microscopic gametocyte carriage and parasite drug resistance. Thus, we found no evidence that the infectious reservoir, marked by those carrying gametocytes, is enriched with drug-resistant parasites.

A single-center intervention to discontinue postoperative antibiotics after spinal fusion.

INTRODUCTION: Postoperative antibiotics (PA) are often administered to patients after instrumented spinal surgery until all drains are removed to prevent surgical site infections (SSI). This practice is discouraged by numerous medical society guidelines, so our institutional Neurosurgery Quality Improvement Committee decided to discontinue use of PA for this population. METHODS: We retrospectively reviewed data for patients who had instrumented spinal surgery at our institution for seven months before and after this policy change and compared the frequency of SSI and development of antibiotic related complications in patients who received PA to those who did not (non-PA). RESULTS: We identified 188 PA patients and 158 non-PA patients. Discontinuation of PA did not result in an increase in frequency of SSI (2% of PA patients vs. 0.6% of non-PA patients, p = .4). Growth of resistant bacteria was not significantly reduced in the non-PA period in comparison to the PA period (2% in the PA period and 1% in the non-PA period). The cost of antibiotics for PA patients was $5,499.62, whereas the cost of antibiotics for the non-PA patients was $0. On a per patient basis, the cost associated with antibiotics and resistant infections was significantly greater for patients who received PA than for those who did not (median of $26.32 with IQR $9.87-$46.06 vs. median of $0 with IQR $0-$0; p < .0001). CONCLUSION: After discontinuing PA for patients who had instrumented spinal procedures, we did not observe an increase in the frequency of SSI. We did, however, note that there was a non-significant decrease in the frequency of growth of resistant organisms. These findings suggest that patients in this population do not need PA, and complications can be reduced if PA are withheld.

Antibiotic prophylaxis for subdural and subgaleal drains.

OBJECTIVE The authors sought to determine the effects of eliminating the use of prolonged prophylactic systemic antibiotics (PPSAs) in patients with subdural and subgaleal drains. METHODS Using a retrospective database, the authors collected data for patients over the age of 17 years who had undergone cranial surgery at their institution between December 2013 and July 2014 (PPSAs period) or between December 2014 and July 2015 (non-PPSAs period) and had subdural or subgaleal drains left in place postoperatively. RESULTS One hundred five patients in the PPSAs period and 80 in the non-PPSAs period were identified. The discontinuation of PPSAs did not result in an increase in the frequency of surgical site infection (SSI). The frequency of Clostridium difficile (CDI) and the growth of resistant bacteria were reduced in the non-PPSAs period in comparison with the PPSAs period. In the 8 months after the drain prophylaxis protocol was changed, $93,194.63 were saved in the costs of antibiotics and complications related to antibiotics. CONCLUSIONS After discontinuing PPSAs for patients with subdural or subgaleal drains at their institution, the authors did not observe an increase in the frequency of SSI. They did, however, note a decrease in the frequency of CDI and the growth of resistant organisms. It appears that not only can patients in this population do without PPSAs, but also that complications are avoided when antibiotic use is limited to 24 hours after surgery.

The health status of street children and youth in low- and middle-income countries: a systematic review of the literature.

The health of the tens of millions of street children globally is understudied. We undertook a systematic review of the existing quantitative literature regarding the health status of street children and youth in low- and middle-income countries to summarize available knowledge, identify underexplored areas of research, and inform the future research agenda regarding the health of this population. A total of 108 articles met our inclusion criteria. Demographic data and structural factors associated with street life are summarized. Although data in specific regions or diseases are sparse, the literature review illustrates that youth's survival behaviors and the exposures associated with poor shelter have resulted in disproportionate morbidity in the areas of infectious illness, psychiatric disease, reproductive health, and perhaps to a lesser extent, growth. Vast areas of health that may disproportionately affect street children in childhood or later on as adults have not been investigated, including chronic diseases and cognitive deficits. Studies of specific diseases or conditions vary considerably by region. Strengths and limitations of the literature are discussed and principles for future research in this area are proposed.

Monte Carlo analysis of a new model-based method for insulin sensitivity testing.

Insulin resistance (IR), or low insulin sensitivity, is a major risk factor in the pathogenesis of type 2 diabetes and cardiovascular disease. A simple, high resolution assessment of IR would enable earlier diagnosis and more accurate monitoring of intervention effects. Current assessments are either too intensive for clinical settings (Euglycaemic Clamp, IVGTT) or have too low resolution (HOMA, fasting glucose/insulin). Based on high correlation of a model-based measure of insulin sensitivity and the clamp, a novel, clinically useful test protocol is designed with: physiological dosing, short duration (<1 h), simple protocol, low cost and high repeatability. Accuracy and repeatability are assessed with Monte Carlo analysis on a virtual clamp cohort (N=146). Insulin sensitivity as measured by this test has a coefficient of variation (CV) of CV(SI)=4.5% (90% CI: 3.8-5.7%), slightly higher than clamp ISI (CV(ISI)=3.3% (90% CI: 3.0-4.0%)) and significantly lower than HOMA (CV(HOMA)=10.0% (90% CI: 9.1-10.8%)). Correlation to glucose and unit normalised ISI is r=0.98 (90% CI: 0.97-0.98). The proposed protocol is simple, cost effective, repeatable and highly correlated to the gold-standard clamp.

Integral-based filtering of continuous glucose sensor measurements for glycaemic control in critical care.

Hyperglycaemia is prevalent in critical illness and increases the risk of further complications and mortality, while tight control can reduce mortality up to 43%. Adaptive control methods are capable of highly accurate, targeted blood glucose regulation using limited numbers of manual measurements due to patient discomfort and labour intensity. Therefore, the option to obtain greater data density using emerging continuous glucose sensing devices is attractive. However, the few such systems currently available can have errors in excess of 20-30%. In contrast, typical bedside testing kits have errors of approximately 7-10%. Despite greater measurement frequency larger errors significantly impact the resulting glucose and patient specific parameter estimates, and thus the control actions determined creating an important safety and performance issue. This paper models the impact of the continuous glucose monitoring system (CGMS, Medtronic, Northridge, CA) on model-based parameter identification and glucose prediction. An integral-based fitting and filtering method is developed to reduce the effect of these errors. A noise model is developed based on CGMS data reported in the literature, and is slightly conservative with a mean Clarke Error Grid (CEG) correlation of R=0.81 (range: 0.68-0.88) as compared to a reported value of R=0.82 in a critical care study. Using 17 virtual patient profiles developed from retrospective clinical data, this noise model was used to test the methods developed. Monte-Carlo simulation for each patient resulted in an average absolute 1-h glucose prediction error of 6.20% (range: 4.97-8.06%) with an average standard deviation per patient of 5.22% (range: 3.26-8.55%). Note that all the methods and results are generalizable to similar applications outside of critical care, such as less acute wards and eventually ambulatory individuals. Clinically, the results show one possible computational method for managing the larger errors encountered in emerging continuous blood glucose sensors, thus enabling their more effective use in clinical glucose regulation studies.

Investigating neck pain in wheelchair users.

OBJECTIVE: Despite the fact that wheelchair users are exposed to risk factors for neck and upper back pain (NP), little is known about the impact and possible diagnoses associated with NP. The purpose of this study was to examine the significance of NP in wheelchair users and to determine if a portion of the NP may be myofascial in origin. DESIGN: Cross-sectional cohort study using questionnaires and physical exams to evaluate NP in a convenience sample of wheelchair users from the National Veteran's Wheelchair Games. Main outcome measures included reported NP, visual analog scale of neck complaints, Neck Disability Index, and physical examination findings of trigger points. RESULTS: Sixty-six percent of subjects reported NP since becoming a wheelchair user and, 60% reported pain during the past month. Neither age nor length of time in a wheelchair was significantly different between those subjects who did and those subjects who did not report pain. Of those respondents who reported NP, 60% visited the doctor about the pain and 40% limited their daily activities due to the pain. Trigger-point palpation reproduced pain in 54% of those respondents who experienced pain in the past month (n = 34). CONCLUSION: This study provides a first step in defining the prevalence and significance of NP among wheelchair users. Clinicians who work with this population need to ask subjects about symptoms and consider a myofascial origin for that pain when considering treatment.