Patient Experience and Preferences for the Assessment of Olfaction: The Patient International Clinical Assessment of Smell Survey.

INTRODUCTION: Olfactory dysfunction (OD) is common and carries significant personal and societal burden of disease. Accurate assessment of olfaction is required for good clinical care and affords patients insight into their condition. However, the accuracy of assessment varies with technique used, and there is presently little standardisation of clinical practice. We therefore aimed to determine experience of and preferences for olfactory assessment in healthcare-seeking adults. METHODS: An anonymous patient co-produced survey was developed in collaboration with a UK-based OD charity. Distribution was via their social media patient forum. "Healthcare seeking" adults (i.e., who had undergone olfactory assessment by a healthcare professional [any care level/speciality] or may do so in the future) were included. RESULTS: 576 people (88.5% female, mean 46 years) responded. Hyposmia, parosmia, and retronasal OD were most frequently reported. 55.2% had been assessed by a healthcare professional - GP most commonly, followed by ENT. Importantly, only 15.6% and 16.9% of respondents had undergone systematic assessment with smell tests or symptom questionnaires, respectively. Most respondents had not undergone imaging. Mean satisfaction was higher in those seen by ENT. Interestingly, respondents prioritise orthonasal odour identification over other forms of smell test. Unfortunately, many felt that healthcare professionals (across specialities) were dismissive towards OD and lacked appropriate knowledge of both its pathophysiology and effects. We propose simple steps that can be taken to improve olfactory assessment, including education and establishment of robust referral networks. CONCLUSION: We hope these results and supporting practical recommendations will inform future service planning, funding allocation and research, as well as better aligning patient and clinician priorities.

Investigating inequalities in cancer staging and survival for adults with intellectual or developmental disabilities and cancer: A population-based study in Manitoba, Canada.

BACKGROUND: Cancer is a leading cause of death among adults living with intellectual or developmental disabilities (IDD). However, few epidemiological studies exist worldwide quantifying inequalities in cancer stage at diagnosis and survival for people with IDD relative to those without IDD. METHODS: A population-based, retrospective cohort study was conducted using provincial health and social administrative data in Manitoba, Canada. Adults (≥18 years) with a cancer diagnosis between 2004 and 2017 were included. Lifetime IDD was identified before the cancer diagnosis using an established algorithm. Modified Poisson regression with robust error variance was used to estimate the association between IDD status and metastatic cancer at diagnosis. Multivariable Cox proportional hazards analyses were used to the effect of IDD on overall survival following the cancer diagnosis. RESULTS: The staging and prognosis cohorts included 62,886 (n = 473 with IDD) and 74,143 (n = 592 with IDD) cancer patients, respectively. People living with IDD were significantly more likely to be diagnosed with metastatic cancer and die following their cancer diagnosis compared to those without IDD (RR=1.20; 95 % CI 1.05-1.38; HR= 1.53; 95 % CI 1.38-1.71). Significant heterogeneity by sex was identified for cancer survival (p = 0.005). DISCUSSION: People with IDD had more advanced cancer stage at diagnosis and worse survival relative to those without IDD. Identifying and developing strategies to address the factors responsible that contribute to these disparities is required for improving patient-centred cancer care for adults with IDD.

Inequities in access to directly-funded home care in Canada: a privilege only afforded to some.

BACKGROUND: Directly-funded home care (DF) provides government funds to people who need assistance with the activities of daily living, allowing them to arrange their own services. As programs expand globally, many allow DF clients to hire home care agencies to organize their services rather than finding their own workers. In Canada, half of the DF home care programs allow users to purchase agency services. The goal of this research is to describe the role of agency providers in DF home care in Canada and consider potential equity implications for service access from the perspectives of clients and families. METHODS: Framed with intersectionality, the study included online focus groups with families and clients (n = 56) in the two Canadian provinces of Alberta and Manitoba between June 2021-April 2022. All transcripts underwent qualitative thematic analysis using open and axial coding techniques. Each transcript was analyzed by two of three possible independent coders using Dedoose qualitative analysis software. RESULTS: The article presents five thematic findings. First, the focus groups document high rates of satisfaction with the care regardless of whether the client uses agency providers. Second, agency providers mediate some of the administrative barriers and emotional strain of using DF home care, and this is especially important for family caregivers who are working or have additional care responsibilities. Third, there are out-of-pocket expenses reported by most participants, with agency clients describing administrative fees despite lower pay for the frontline care workers. Fourth, agencies are not generally effective for linguistic and/or cultural matching between workers and families. Finally, we find that DF care programs cannot compensate for a limited informal support network. CONCLUSIONS: Clients and families often intentionally choose DF home care after negative experiences with other public service options, yet the results suggest that in some Canadian contexts, DF home care is a privilege only afforded to some. Given the growing inequalities that exist in Canadian society, all public home care options must be open to all who need it, irrespective of ability to pay, degree of social support, or competence in the English language.

Intersectionality, health equity, and EDI: What's the difference for health researchers?

Many countries adopted comprehensive national initiatives to promote equity in higher education with the goal of transforming the culture of research. Major health research funders are supporting this work through calls for projects that focus on equity, resulting in a proliferation of theoretical frameworks including "intersectionality," "health equity," and variations of equity, diversity and inclusion, or EDI. This commentary is geared at individual principal investigators and health research teams who are developing research proposals and want to consider equity issues in their research, perhaps for the first time. We present histories and definitions of three commonly used frameworks: intersectionality, health equity, and EDI. In the context of health research, intersectionality is a methodology (a combination of epistemology and techniques) that can identify the relationships among individual identities and systems of oppression; however, it should also be used internally by research teams to reflect on the production of knowledge. Health equity is a societal goal that operationalizes the social determinants of health to document and address health disparities at the population level. EDI initiatives measure and track progress within organizations or teams and are best suited to inform the infrastructure and human resourcing "behind the scenes" of a project. We encourage researchers to consider these definitions and strive to tangibly move health research towards equity both in the topics we study and in the ways we do research.

Selecting implementation models, theories, and frameworks in which to integrate intersectional approaches.

BACKGROUND: Models, theories, and frameworks (MTFs) provide the foundation for a cumulative science of implementation, reflecting a shared, evolving understanding of various facets of implementation. One under-represented aspect in implementation MTFs is how intersecting social factors and systems of power and oppression can shape implementation. There is value in enhancing how MTFs in implementation research and practice account for these intersecting factors. Given the large number of MTFs, we sought to identify exemplar MTFs that represent key implementation phases within which to embed an intersectional perspective. METHODS: We used a five-step process to prioritize MTFs for enhancement with an intersectional lens. We mapped 160 MTFs to three previously prioritized phases of the Knowledge-to-Action (KTA) framework. Next, 17 implementation researchers/practitioners, MTF experts, and intersectionality experts agreed on criteria for prioritizing MTFs within each KTA phase. The experts used a modified Delphi process to agree on an exemplar MTF for each of the three prioritized KTA framework phases. Finally, we reached consensus on the final MTFs and contacted the original MTF developers to confirm MTF versions and explore additional insights. RESULTS: We agreed on three criteria when prioritizing MTFs: acceptability (mean = 3.20, SD = 0.75), applicability (mean = 3.82, SD = 0.72), and usability (median = 4.00, mean = 3.89, SD = 0.31) of the MTF. The top-rated MTFs were the Iowa Model of Evidence-Based Practice to Promote Quality Care for the 'Identify the problem' phase (mean = 4.57, SD = 2.31), the Consolidated Framework for Implementation Research for the 'Assess barriers/facilitators to knowledge use' phase (mean = 5.79, SD = 1.12), and the Behaviour Change Wheel for the 'Select, tailor, implement interventions' phase (mean = 6.36, SD = 1.08). CONCLUSIONS: Our interdisciplinary team engaged in a rigorous process to reach consensus on MTFs reflecting specific phases of the implementation process and prioritized each to serve as an exemplar in which to embed intersectional approaches. The resulting MTFs correspond with specific phases of the KTA framework, which itself may be useful for those seeking particular MTFs for particular KTA phases. This approach also provides a template for how other implementation MTFs could be similarly considered in the future. TRIAL REGISTRATION: Open Science Framework Registration: osf.io/qgh64.

Development and usability testing of tools to facilitate incorporating intersectionality in knowledge translation.

BACKGROUND: The field of knowledge translation (KT) has been criticized for neglecting contextual and social considerations that influence health equity. Intersectionality, a concept introduced by Black feminist scholars, emphasizes how human experience is shaped by combinations of social factors (e.g., ethnicity, gender) embedded in systemic power structures. Its use has the potential to advance equity considerations in KT. Our objective was to develop and conduct usability testing of tools to support integrating intersectionality in KT through three key phases of KT: identifying the gap; assessing barriers to knowledge use; and selecting, tailoring, and implementing interventions. METHODS: We used an integrated KT approach and assembled an interdisciplinary development committee who drafted tools. We used a mixed methods approach for usability testing with KT intervention developers that included semi-structured interviews and the System Usability Scale (SUS). We calculated an average SUS score for each tool. We coded interview data using the framework method focusing on actionable feedback. The development committee used the feedback to revise tools, which were formatted by a graphic designer. RESULTS: Nine people working in Canada joined the development committee. They drafted an intersectionality primer and one tool that included recommendations, activities, reflection prompts, and resources for each of the three implementation phases. Thirty-one KT intervention developers from three countries participated in usability testing. They suggested the tools to be shorter, contain more visualizations, and use less jargon. Average SUS scores of the draft tools ranged between 60 and 78/100. The development committee revised and shortened all tools, and added two, one-page summary documents. The final toolkit included six documents. CONCLUSIONS: We developed and evaluated tools to help embed intersectionality considerations in KT. These tools go beyond recommending the use of intersectionality to providing practical guidance on how to do this. Future work should develop guidance for enhancing social justice in intersectionality-enhanced KT.

"None of it was especially easy": improving COVID-19 vaccine equity for people with disabilities.

OBJECTIVES: Our study aimed to (1) identify barriers to equitable access to COVID-19 vaccines for Canadians with disabilities and (2) present recommendations made by study participants to improve immunization programs in terms of inclusivity and equitable access. METHODS: We invited Manitobans living with disabilities to participate in online focus groups. Focus groups were conducted across multiple disability experiences, although one focus group was advertised explicitly as offering simultaneous American Sign Language interpretation to encourage people who are d/Deaf or hard of hearing to participate. Participants were asked about their perspectives on the management of COVID-19 public health measures and vaccination program rollout. Participants were also asked about barriers and facilitators of their vaccination experiences and if they had recommendations for improvement. RESULTS: The participants identified three areas where they encountered routine barriers in accessing the COVID-19 vaccines: (1) vaccine information and appointment booking, (2) physical access to vaccination clinics, and (3) vaccination experience. While participants identified specific recommendations to improve vaccine accessibility for people with disabilities, the single most crucial advice consistently identified was to involve people with disabilities in developing accessible immunization programs. CONCLUSION: Meaningful engagement with people living with disabilities in immunization program planning would help ensure that people with disabilities, who already face significant challenges due to COVID-19, are offered the same protections as the rest of the population. These recommendations could be easily transferred to the administration of other large-scale immunization campaigns (e.g., influenza vaccines).

RéSUMé: OBJECTIFS: Notre étude visait à (1) identifier les obstacles à un accès équitable aux vaccins contre la COVID-19 pour les Canadiens vivant avec un handicap; et (2) présenter les recommandations faites par les participants à l'étude pour améliorer les programmes de vaccination en termes d'inclusivité et d'accès équitable. MéTHODES: Nous avons invité les Manitobains vivant avec un handicap à participer à des groupes de discussion en ligne. Les groupes de discussion ont été organisés pour divers types de handicap, bien qu'un groupe de discussion ait été explicitement annoncé comme offrant une interprétation simultanée en langue des signes américaine pour encourager les personnes sourdes ou malentendantes à participer. Les participants ont été interrogés sur leurs points de vue sur la gestion des mesures de santé publique contre la COVID-19 et le déploiement du programme d'immunisation. Les participants ont également été interrogés sur les obstacles et les facilitateurs de leurs expériences de vaccination et s'ils avaient des recommandations d'amélioration. RéSULTATS: Les participants ont identifié trois domaines dans lesquels ils ont rencontré des obstacles récurrents pour accéder aux vaccins contre la COVID-19 : 1) l'information sur les vaccins et la prise de rendez-vous, 2) l'accès physique aux cliniques de vaccination, et 3) l'expérience de la vaccination. Bien que les participants aient formulé des recommandations spécifiques pour améliorer l'accessibilité des vaccins pour les personnes handicapées, le conseil le plus crucial systématiquement identifié a été d'impliquer les personnes vivant avec un handicap dans l'élaboration de programmes d'immunisation accessibles. CONCLUSION: Un engagement significatif envers les personnes handicapées dans la planification du programme d'immunisation aiderait à garantir que les personnes vivant avec un handicap, qui sont déjà confrontées à des défis importants en raison de la COVID-19, bénéficient des mêmes protections que le reste de la population. Ces recommandations pourraient être facilement transférées à l'administration d'autres campagnes de vaccination à grande échelle (par exemple, le vaccin contre la grippe).

Intimate Partner Violence Among Persons With Mental Health-Related Disabilities in Canada.

This study examined the elevated risk of intimate partner violence (IPV) among persons with mental health-related disabilities (MH-RD) and the extent to which known risk factors accounted for this phenomenon. Data were drawn from a nationally representative sample of 33,127 Canadians collected in 2014 as part of Statistics Canada's General Social Survey. Results showed that respondents with MH-RD had more than three-fold increased odds of both overall and severe IPV victimization. Although females were more likely to possess a MH-RD, males and females with MH-RD reported similarly elevated odds of IPV victimization. Risk factors that contributed to a significant reduction in elevated odds of IPV for respondents with MH-RD were child maltreatment (CM), respondents' nonprescription drug abuse, and perpetrators' jealous, monitoring, and socially isolating behaviors. The inability to test additional risk factors and bidirectionality in the relationship between MH-RD and IPV may have contributed to the failure to fully account for these respondents' elevated odds of IPV. Future research is needed to understand the complex mechanisms contributing to the elevated risk of IPV and enhance prevention and intervention strategies for this underresearched and underserved vulnerable population.

'Doing' or 'using' intersectionality? Opportunities and challenges in incorporating intersectionality into knowledge translation theory and practice.

Intersectionality is a widely adopted theoretical orientation in the field of women and gender studies. Intersectionality comes from the work of black feminist scholars and activists. Intersectionality argues identities such as gender, race, sexuality, and other markers of difference intersect and reflect large social structures of oppression and privilege, such as sexism, racism, and heteronormativity. The reach of intersectionality now extends to the fields of public health and knowledge translation. Knowledge translation (KT) is a field of study and practice that aims to synthesize and evaluate research into an evidence base and move that evidence into health care practice. There have been increasing calls to bring gender and other social issues into the field of KT. Yet, as scholars outline, there are few guidelines for incorporating the principles of intersectionality into empirical research. An interdisciplinary, team-based, national health research project in Canada aimed to bring an intersectional lens to the field of knowledge translation. This paper reports on key moments and resulting tensions we experienced through the project, which reflect debates in intersectionality: discomfort with social justice, disciplinary divides, and tokenism. We consider how our project advances intersectionality practice and suggests recommendations for using intersectionality in health research contexts. We argue that while we encountered many challenges, our process and the resulting co-created tools can serve as a valuable starting point and example of how intersectionality can transform fields and practices.

Inflammatory pathways amongst people living with HIV in Malawi differ according to socioeconomic status.

BACKGROUND: Non-communicable diseases (NCDs) are increased amongst people living with HIV (PLWH) and are driven by persistent immune activation. The role of socioeconomic status (SES) in immune activation amongst PLWH is unknown, especially in low-income sub-Saharan Africa (SSA), where such impacts may be particularly severe. METHODS: We recruited Malawian adults with CD4<100 cells/ul two weeks after starting ART in the REALITY trial (NCT01825031), as well as volunteers without HIV infection. Clinical assessment, socioeconomic evaluation, blood draw for immune activation markers and carotid femoral pulse wave velocity (cfPWV) were carried out at 2- and 42-weeks post-ART initiation. Socioeconomic risk factors for immune activation and arterial stiffness were assessed using linear regression models. RESULTS: Of 279 PLWH, the median (IQR) age was 36 (31-43) years and 122 (44%) were female. Activated CD8 T-cells increased from 70% amongst those with no education to 88% amongst those with a tertiary education (p = 0.002); and from 71% amongst those earning less than 10 USD/month to 87% amongst those earning between 100-150 USD/month (p = 0.0001). Arterial stiffness was also associated with higher SES (car ownership p = 0.003, television ownership p = 0.012 and electricity access p = 0.029). Conversely, intermediate monocytes were higher amongst those with no education compared to a tertiary education (12.6% versus 7.3%; p = 0.01) and trended towards being higher amongst those earning less than 10 USD/month compared to 100-150 USD/month (10.5% versus 8.0%; p = 0.08). Water kiosk use showed a protective association against T cell activation (p = 0.007), as well as endothelial damage (MIP1ß, sICAM1 and sVCAM1 p = 0.047, 0.026 and 0.031 respectively). CONCLUSIONS: Socioeconomic risk factors for persistent inflammation amongst PLWH in SSA differ depending on the type of inflammatory pathway. Understanding these pathways and their socioeconomic drivers will help identify those at risk and target interventions for NCDs. Future studies assessing drivers of inflammation in HIV should include an SES assessment.

Emergent Issues in Directly-Funded Care: Canadian Perspectives.

Direct Funding (DF) provides individuals with a budget to arrange their own home care instead of receiving publicly arranged services. DF programs have evolved in a number of countries since the 1970s. In Canada, while small-scale DF programs have existed since the early 1970s, the research on these programs remains limited. Responding to gaps identified by an umbrella review and using a health equity framework, this research extends the knowledge base on DF programs from a Canadian perspective through an environmental scan. The research asks: What are the features of DF programs across Canada? What are the emerging issues related to program design and policy development? The study employed a qualitative environmental scan design, gathering data through questionnaires and semi-structured interviews (n = 23). The findings include a summary table describing features of 20 programs and two interview themes: a lack of information on DF workers and concerns about the growing role of home care agencies. This study has the potential to contribute to long-term health equity monitoring research. The findings suggest that as DF expands in Canada, promoting hiring from personal networks may address inequities in rural access to home care services and improve social outcomes for linguistic, cultural, and sexual minorities. However, the findings underscore a need to monitor access to DF programs by people of lower-socioeconomic backgrounds in Canada and discourage policy design that requires independent self-management, which disadvantages people with compromised decision-making capacities.

Applying an intersectionality lens to the theoretical domains framework: a tool for thinking about how intersecting social identities and structures of power influence behaviour.

BACKGROUND: A key component of the implementation process is identifying potential barriers and facilitators that need to be addressed. The Theoretical Domains Framework (TDF) is one of the most commonly used frameworks for this purpose. When applying the TDF, it is critical to understand the context in which behaviours occur. Intersectionality, which accounts for the interface between social identity factors (e.g. age, gender) and structures of power (e.g. ageism, sexism), offers a novel approach to understanding how context shapes individual decision-making and behaviour. We aimed to develop a tool to be used alongside applications of the TDF to incorporate an intersectionality lens when identifying implementation barriers and enablers. METHODS: An interdisciplinary Framework Committee (n = 17) prioritized the TDF as one of three models, theories, and frameworks (MTFs) to enhance with an intersectional lens through a modified Delphi approach. In collaboration with the wider Framework Committee, a subgroup considered all 14 TDF domains and iteratively developed recommendations for incorporating intersectionality considerations within the TDF and its domains. An iterative approach aimed at building consensus was used to finalize recommendations. RESULTS: Consensus on how to apply an intersectionality lens to the TDF was achieved after 12 rounds of revision. Two overarching considerations for using the intersectionality alongside the TDF were developed by the group as well as two to four prompts for each TDF domain to guide interview topic guides. Considerations and prompts were designed to assist users to reflect on how individual identities and structures of power may play a role in barriers and facilitators to behaviour change and subsequent intervention implementation. CONCLUSIONS: Through an expert-consensus approach, we developed a tool for applying an intersectionality lens alongside the TDF. Considering the role of intersecting social factors when identifying barriers and facilitators to implementing research evidence may result in more targeted and effective interventions that better reflect the realities of those involved.

Interdisciplinary and Collaborative Approaches Needed to Determine Impact of COVID-19 on Older Adults and Aging: CAG/ACG and CJA/RCV Joint Statement.

The COVID-19 pandemic and subsequent state of public emergency have significantly affected older adults in Canada and worldwide. It is imperative that the gerontological response be efficient and effective. In this statement, the board members of the Canadian Association on Gerontology/L'Association canadienne de gérontologie (CAG/ACG) and the Canadian Journal on Aging/La revue canadienne du vieillissement (CJA/RCV) acknowledge the contributions of CAG/ACG members and CJA/RCV readers. We also profile the complex ways that COVID-19 is affecting older adults, from individual to population levels, and advocate for the adoption of multidisciplinary collaborative teams to bring together different perspectives, areas of expertise, and methods of evaluation in the COVID-19 response.

Scoping review protocol documenting cancer outcomes and inequalities for adults living with intellectual and/or developmental disabilities.

INTRODUCTION: There is increasing attention on the cancer burden for adults with intellectual and developmental disabilities (IDD). Emerging evidence suggests there are differences in cancer experiences and outcomes for individuals living with IDD, from risk through survivorship. These differences may be attributed to features of the IDD, such as cognitive deficits and communication, as well as social determinants of health-like lower education levels and ableism. However, there is no comprehensive overview of the literature quantifying these potential disparities and describing the influencing factors. In this paper, we describe a scoping review protocol to systematically review published literature on cancer for adults with IDD. The purpose of this review is to identify differences in cancer risk, stage at diagnosis, treatment and survival along the cancer continuum for adults with IDD and outline potential contributing factors creating these disparities. METHODS AND ANALYSIS: We will follow Arksey and O'Malley's expanded framework for scoping reviews to conduct this review. We will systematically search electronic databases for peer-reviewed, published journal articles to identify appropriate studies in collaboration with a health science librarian. Two reviewers will independently review titles and abstracts followed by a full-text review to determine whether it meets inclusion criteria. A data chart for collecting and sorting information will be developed in consultation with the team. Results will be collated and reported following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) extension for scoping reviews: PRISMA-Scoping Reviews. Extracted information will be summarised quantitatively and qualitatively to meet review objectives. ETHICS AND DISSEMINATION: This scoping review will employ a methodology to identify literature related to cancer outcomes and experiences for adults with IDD. Results will be disseminated to relevant stakeholders who care for and support individuals with IDD at local, provincial and national levels and through publishing findings. By highlighting the disparities in the cancer system and gaps in the research, this scoping review can provide direction for future action.

Questioning "choice": A multinational metasynthesis of research on directly funded home-care programs for older people.

In many developed contexts, home-care services have been overhauled with the intent of increasing control and flexibility for those using social and health services. This change is associated with providing funds directly to individuals, and sometimes their families and supports, to arrange at home-care assistance with the activities of daily living. Directly funded home-care programs, or "direct funding" (DF), are not value-neutral policy interventions, but complex and politicised tools for the enactment of care in contemporary times. In this qualitative metasynthesis, we consider 47 research articles published between 2009 and 2017 that explore various DF programs for older persons in the United Kingdom, Australia, and the United States to identify core concepts in the literature. We find that choice emerges as a central concern. We then assess the literature to explore the questions: How does the existing literature conceptualise choice, and the mechanisms through which choice is enhanced, in DF programs for older persons? How is choice, and the benefit of choice to older service users, understood in relevant studies? We argue that the concept of "choice" manifests as a normative goal with presumed benefits among the studies reviewed. Particularly when discussing DF for older people, however, it is essential to consider which mechanisms improve care outcomes, rather than focusing on which mechanisms increase choice writ large. In the case of DF, increased choice comes with increased legal responsibilities and often administrative tasks that many older people and their supports find burdensome. Furthermore, there is no evidence that choice over all elements of one's services is the mechanism that improves care experiences. We conclude by presenting alternative models of understanding care emerging from feminist and other critical scholarship to consider if we are, perhaps, asking the wrong questions about why DF is so often preferred over conventional home-care delivery.

Techno-economic analysis of glucosamine and lipid production from marine diatom Cyclotella sp.

A techno-economic analysis (TEA) was performed on glucosamine and lipid production from a marine diatom Cyclotella sp. in raceway open pond (RWP) and tubular photobioreactor (PBR) cultivation systems. Two PBR operating schemes were assessed: one to produce high lipid (HL) content, and another to produce high chitin (HC) content. In order to generate 1kg of glucosamine, 9700kg (RWP)/1050kg (PBR HL) freshwater, 40kg CO2, 0.70kg nitrogen, 0.18kg phosphorus, and 1.2kg silicon nutrients are required for algae cultivation with water and nutrient recovery. With a price of $1.5 for lipid as coproduct, the projected selling price of glucosamine were $35/kg, $106/kg and $82/kg for RWP, PBR HL, and PBR HC systems, respectively. Currently, these prices are not competitive with industrial shellfish-derived glucosamine, but can be reduced by technology improvements such as producing food grade lipid, increasing algal productivity or chitin content.

National Asthma Education and Prevention Program severity classification as a measure of disease burden in children with acute asthma.

OBJECTIVE: To examine the association between the National Asthma Education and Prevention Program (NAEPP) severity classification and other measures of burden of disease in children with acute asthma. METHODS: We performed a cross-sectional study of 750 children <18 years of age with a physician diagnosis of asthma and treated in an emergency department (ED) for acute asthma exacerbation. Subjects were assigned to 1 of 4 levels of severity (mild intermittent, mild persistent, moderate persistent, or severe persistent). Assignments followed 3 methods: the report of symptom frequency alone (standard method); symptom frequency and reported controller-medication use (modified method); or the additive modified method in which the symptom frequency and reported controller-medication use were assigned numeric values and a score was calculated. An asthma-specific quality-of-life score was calculated by using the Integrated Therapeutics Group Child Asthma Short Form (ITG-CASF). The number of ED visits and hospital admissions for asthma over the previous 12 months was collected also. Differences between severity groups were compared with analysis of variance, and the proportion of variance explained (r2) was calculated. RESULTS: Using the standard classification method, 55% of subjects had mild intermittent asthma, 21% had mild persistent asthma, 14% had moderate persistent asthma, and 10% had severe persistent asthma. Among those classified as having mild intermittent asthma by symptoms alone, 22% were reclassified as having persistent asthma when controller medications were accounted for. With all 3 scoring methods, mean ITG-CASF scores decreased significantly with each increasing level of severity. However, the magnitude of this association was modest. There was a significant but limited association between severity level and mean number of ED visits and hospitalizations. CONCLUSION: NAEPP severity classification alone provides an incomplete picture of the burden of disease in children with asthma.