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1.
Health Expect ; 2023 Sep 26.
Article in English | MEDLINE | ID: mdl-37751312

ABSTRACT

BACKGROUND: Indiscriminate use of laboratory blood testing in hospitals contributes to patient discomfort and healthcare waste. Patient engagement in low-value healthcare can help reduce overuse. Understanding patient experience is necessary to identify opportunities to improve patient engagement with in-hospital laboratory testing. OBJECTIVES: To understand patient experience with the process of in-hospital laboratory blood testing. METHODS: We used a qualitative study design via semistructured interviews conducted online or over the phone. Participants were adult patients or family members/caregivers (≥18 years of age) with a recent (within 12 months of interview) experience of hospitalization in Alberta or British Columbia, Canada. We identified participants through convenience sampling and conducted interviews between May 2021 and June 2022. We analysed transcripts using thematic content analysis. Recruitment was continued until code saturation was reached. RESULTS: We interviewed 16 participants (13 patients, 1 family member and 2 caregivers). We identified four themes from patients' experiences of in-hospital laboratory blood testing: (i) patients need information from healthcare teams about expected blood testing processes, (ii) blood draw processes should consider patient comfort and preferences, (iii) patients want information from their healthcare teams about the rationale and frequency of blood testing and (iv) patients need information on how their testing results affect their medical care. CONCLUSION: Current laboratory testing processes in hospitals do not facilitate shared decision-making and patient engagement. Patient engagement with laboratory testing in hospitals requires an empathetic healthcare team that provides clear communication regarding testing procedures, rationale and results, while considering patient preferences and offering opportunities for involvement. PATIENT OR PUBLIC CONTRIBUTION: We interviewed 16 patients and/or family members/caregivers regarding their in-hospital laboratory blood testing experiences. Our findings show correlations between patient needs and patient recommendations to make testing processes more patient-centred. To bring a lived-experience lens to this study, we formed a Patient Advisory Council with 9-11 patient research partners. Our patient research partners informed the research design, co-developed participant recruitment strategies, co-conducted data collection and informed the data analysis. Some of our patient research partners are co-authors of this manuscript.

2.
Ann Hematol ; 101(1): 99-108, 2022 Jan.
Article in English | MEDLINE | ID: mdl-34767055

ABSTRACT

Immunoglobulin G4-related disease (IgG4-RD) has rarely been associated with lymphoid neoplasms, the spectrum of which remains unclear. B-cell lymphoid neoplasms (LN) associated with IgG4-RD diagnosed in a 4-year period were analysed. There were five men and three women at a median age of 76.5 (52-90) years; three with synchronous IgG4-RD and LN; three with IgG4-RD preceding LN by 2, 3, and 22 years; and two with LN preceding IgG4-RD by 2.5 and 7 years. All patients presented with disseminated lymphadenopathy. Monoclonal gammopathy of undetermined significance (MGUS)/smouldering multiple myeloma (SMM) was found in three patients, all with an IgGκ paraprotein. Levels of IgGκ and IgG4 correlated. Diffuse large B-cell lymphoma (DLBCL) was found in three patients, with one case showing co-existing lymphoma and IgG4-RD in the same lymph node biopsy. The remaining two cases were marginal zone lymphoma (MZL) developing in a lacrimal gland previously involved by IgG4-RD; and nodular lymphocyte predominant Hodgkin lymphoma (NLP-HL) diagnosed in a lymph node with concomitant IgG4-RD. Low-dose continuous prednisolone was given for MGUS/SMM, with both monoclonal IgGκ and IgG4 responding. Combination chemotherapy was given for DLBCL, with two patients achieving complete response and one patient dying from refractory lymphoma. The patient with MZL refused treatment, whereas the case of NLP-HL responded completely to chemotherapy. Our findings together with previous observations suggest that IgG4-RD has an increased risk of B-cell neoplasms. Patients with IgG4-RD presenting with lymphadenopathy require vigorous investigations to exclude lymphoid neoplasms.


Subject(s)
Hodgkin Disease/complications , Immunoglobulin G4-Related Disease/complications , Lymphadenopathy/complications , Lymphoma, B-Cell, Marginal Zone/complications , Lymphoma, Large B-Cell, Diffuse/complications , Monoclonal Gammopathy of Undetermined Significance/complications , Aged , Aged, 80 and over , Disease Management , Female , Hodgkin Disease/therapy , Humans , Immunoglobulin G , Immunoglobulin G4-Related Disease/therapy , Lymphadenopathy/therapy , Lymphoma, B-Cell, Marginal Zone/therapy , Lymphoma, Large B-Cell, Diffuse/therapy , Male , Middle Aged , Monoclonal Gammopathy of Undetermined Significance/therapy
3.
Sociol Health Illn ; 44(3): 663-691, 2022 03.
Article in English | MEDLINE | ID: mdl-35261028

ABSTRACT

We explored socioeconomic gradients in self-rated overall health (SROH) using indicators of materialist (educational attainment and perceived income adequacy) and psychosocial perspectives (subjective social status (SSS)) among adults living in countries with varying levels of income inequality, and the importance of psychosocial stress in mediating these associations. If psychosocial processes at the individual and societal levels correspond, associations between SSS and SROH should be higher among adults in countries with higher income inequality, and psychosocial stress should be a more important mediator of these associations. We used multigroup structural equation models to analyse cross-sectional data from the International Food Policy Study of adults (n = 22,824) in Australia, Canada, Mexico, the UK and the United States. Associations between SSS and SROH were not higher in more unequal countries, nor was psychosocial stress a more important mediator of these associations. Inequities in SROH in more unequal countries may not predominantly reflect stress-related pathways of social status differentiation.


Subject(s)
Health Inequities , Social Status , Adult , Cross-Sectional Studies , Educational Status , Humans , Income , Social Class , Socioeconomic Factors , United States
4.
J Antimicrob Chemother ; 76(3): 561-575, 2021 02 11.
Article in English | MEDLINE | ID: mdl-33146719

ABSTRACT

BACKGROUND: There is ongoing debate regarding potential associations between restrictions of antimicrobial use and prevalence of antimicrobial resistance (AMR) in bacteria. OBJECTIVES: To summarize the effects of interventions reducing antimicrobial use in food-producing animals on the prevalence of AMR genes (ARGs) in bacteria from animals and humans. METHODS: We published a full systematic review of restrictions of antimicrobials in food-producing animals and their associations with AMR in bacteria. Herein, we focus on studies reporting on the association between restricted antimicrobial use and prevalence of ARGs. We used multilevel mixed-effects models and a semi-quantitative approach based on forest plots to summarize findings from studies. RESULTS: A positive effect of intervention [reduction in prevalence or number of ARGs in group(s) with restricted antimicrobial use] was reported from 29 studies for at least one ARG. We detected significant associations between a ban on avoparcin and diminished presence of the vanA gene in samples from animals and humans, whereas for the mecA gene, studies agreed on a positive effect of intervention in samples only from animals. Comparisons involving mcr-1, blaCTX-M, aadA2, vat(E), sul2, dfrA5, dfrA13, tet(E) and tet(P) indicated a reduced prevalence of genes in intervention groups. Conversely, no effects were detected for ß-lactamases other than blaCTX-M and the remaining tet genes. CONCLUSIONS: The available body of scientific evidence supported that restricted use of antimicrobials in food animals was associated with an either lower or equal presence of ARGs in bacteria, with effects dependent on ARG, host species and restricted drug.


Subject(s)
Anti-Bacterial Agents , Drug Resistance, Bacterial , Animals , Anti-Bacterial Agents/pharmacology , Anti-Bacterial Agents/therapeutic use , Bacteria , Drug Resistance, Bacterial/genetics , Humans , Prevalence , beta-Lactamases
5.
J Cutan Med Surg ; 25(3): 257-270, 2021.
Article in English | MEDLINE | ID: mdl-33263264

ABSTRACT

BACKGROUND: Previous systematic reviews have assessed the prevalence and odds ratio (OR) of depression for patients with psoriatic disease. Due to probable bidirectional effects, prevalence and prevalence ORs are difficult to interpret. No prior reviews have quantified the relative risk (RR) of depression following a diagnosis of psoriatic disease. OBJECTIVE: To estimate the RR of depression in individuals with psoriasis and in psoriatic arthritis (PsA), clear-to-moderate psoriasis, and moderate-to-severe psoriasis subgroups. METHODS: Observational studies investigating the risk of depression in adults with psoriatic disease were systematically searched for in Medline, EMBASE, PsycINFO, and CINAHL databases; 4989 unique references were screened. Studies that reported measures of incident depression in psoriasis patients were included. Thirty-one studies were included into the systematic review, of which 17 were meta-analyzed. Random effects models were employed to synthesize relevant data. Sources of heterogeneity were explored with subgroup analysis and meta-regression. RESULTS: Seventeen studies were included in meta-analyses. The pooled RR of depression in psoriasis patients compared to nonpsoriasis controls was 1.48 (95% CI: 1.16-1.89). Heterogeneity was high (I2 = 99.8%). Subgroup analysis and meta-regression did not indicate that PsA status or psoriasis severity (clear-to-mild, moderate-to-severe) were sources of heterogeneity. No evidence of publication bias was found. CONCLUSIONS: This review demonstrates that the risk of depression is greater in patients with psoriasis and PsA. Future research should focus on developing strategies to address the mental health needs of this patient population for depression, including primary prevention, earlier detection, and treatment strategies.


Subject(s)
Depression/etiology , Psoriasis/psychology , Adult , Arthritis, Psoriatic/psychology , Humans , Risk
6.
Ann Hematol ; 98(4): 869-879, 2019 Apr.
Article in English | MEDLINE | ID: mdl-30515541

ABSTRACT

Current prognostication in myelofibrosis (MF) is based on clinicopathological features and mutations in a limited number of driver genes. The impact of other genetic mutations remains unclear. We evaluated for mutations in a myeloid panel of 54 genes using next-generation sequencing. Multivariate Cox regression analysis was used to determine prognostic factors for overall survival (OS) and leukaemia-free survival (LFS), based on mutations of these genes and relevant clinical and haematological features. One hundred and one patients (primary MF, N = 70; secondary MF, N = 31) with a median follow-up of 49 (1-256) months were studied. For the entire cohort, inferior OS was associated with male gender (P = 0.04), age > 65 years (P = 0.04), haemoglobin < 10 g/dL (P = 0.001), CUX1 mutation (P = 0.003) and TP53 mutation (P = 0.049); and inferior LFS was associated with male gender (P = 0.03), haemoglobin < 10 g/dL (P = 0.04) and SRSF2 mutations (P = 0.008). In primary MF, inferior OS was associated with male gender (P = 0.03), haemoglobin < 10 g/dL (P = 0.002), platelet count < 100 × 109/L (P = 0.02), TET2 mutation (P = 0.01) and CUX1 mutation (P = 0.01); and inferior LFS was associated with haemoglobin < 10 g/dL (P = 0.02), platelet count < 100 × 109/L (P = 0.02), TET2 mutations (P = 0.01) and CUX1 mutations (P = 0.04). These results showed that clinical and haematological features and genetic mutations should be considered in MF prognostication.


Subject(s)
High-Throughput Nucleotide Sequencing , Mutation , Primary Myelofibrosis , Adult , Aged , Aged, 80 and over , Asian People , China/epidemiology , DNA Mutational Analysis , Disease-Free Survival , Female , Follow-Up Studies , Humans , Male , Middle Aged , Platelet Count , Primary Myelofibrosis/blood , Primary Myelofibrosis/genetics , Primary Myelofibrosis/mortality , Sex Factors , Survival Rate
7.
Am J Kidney Dis ; 72(4): 592-600, 2018 10.
Article in English | MEDLINE | ID: mdl-29699884

ABSTRACT

Caring for patients with end-stage renal disease (ESRD) requiring dialysis is intensive and expensive. Telehealth may improve the access and efficiency of ESRD care. For this perspective, we systematically reviewed studies that examined the effectiveness of telehealth versus or in addition to usual care for ESRD management. 10 studies were identified, including 7 randomized trials and 3 cohort studies. Study populations, modes of delivery (including telephone, telemetry, or videoconferencing), and the outcomes evaluated varied substantially between studies. Two studies examined telehealth interventions versus standard ESRD care and demonstrated mixed results on processes of care, no differences in laboratory surrogate markers of ESRD care, and reduced or similar rates of hospitalization. Eight studies evaluated the addition of telehealth to usual care and demonstrated no significant improvements in processes of care or surrogate laboratory measures, variable impacts on hospitalization rates, and mixed impacts on some domains of quality of life, including improvement in mental health. Although potential benefits of telehealth in ESRD care have been reported, optimal designs for delivery and elements of care that may be improved through telehealth remain uncertain.


Subject(s)
Delivery of Health Care/organization & administration , Health Care Costs , Kidney Failure, Chronic/therapy , Outcome Assessment, Health Care , Telemedicine/organization & administration , Cohort Studies , Disease Management , Female , Health Personnel/organization & administration , Humans , Kidney Failure, Chronic/diagnosis , Kidney Failure, Chronic/mortality , Male , Randomized Controlled Trials as Topic , Risk Assessment , United States
8.
Med Care ; 56(2): 121-129, 2018 02.
Article in English | MEDLINE | ID: mdl-29251716

ABSTRACT

BACKGROUND: An association between weekend health care delivery and poor outcomes has become known as the "weekend effect." Evidence for such an association among surgery patients has not previously been synthesized. OBJECTIVE: To systematically review associations between weekend surgical care and postoperative mortality. METHODS: We searched PubMed, EMBASE, and references of relevant articles for studies that compared postoperative mortality either; (1) according to the day of the week of surgery for elective operations, or (2) according to weekend versus weekday admission for urgent/emergent operations. Odds ratios (ORs) and corresponding 95% confidence intervals (CIs) for postoperative mortality (≤90 d or inpatient mortality) were pooled using random-effects models. RESULTS: Among 4027 citations identified, 10 elective surgery studies and 19 urgent/emergent surgery studies with a total of >6,685,970 and >1,424,316 patients, respectively, met the inclusion criteria. Pooled odds of mortality following elective surgery rose in a graded manner as the day of the week of surgery approached the weekend [Monday OR=1 (reference); Tuesday OR=1.04 (95% CI=0.97-1.11); Wednesday OR=1.08 (95% CI=0.98-1.19); Thursday OR=1.12 (95% CI=1.03-1.22); Friday OR=1.24 (95% CI=1.10-1.38)]. Mortality was also higher among patients who underwent urgent/emergent surgery after admission on the weekend relative to admission on weekdays (OR=1.27; 95% CI=1.08-1.49). CONCLUSIONS: Postoperative mortality rises as the day of the week of elective surgery approaches the weekend, and is higher after admission for urgent/emergent surgery on the weekend compared with weekdays. Future research should focus on clarifying underlying causes of this association and potentially mitigating its impact.


Subject(s)
After-Hours Care/statistics & numerical data , Elective Surgical Procedures/mortality , Hospital Mortality , Hospitalization/statistics & numerical data , Surgical Procedures, Operative/mortality , Cohort Studies , Databases, Factual , Elective Surgical Procedures/statistics & numerical data , Female , Humans , Length of Stay/statistics & numerical data , Male , Postoperative Period , Time Factors
9.
BMC Cardiovasc Disord ; 18(1): 22, 2018 02 06.
Article in English | MEDLINE | ID: mdl-29409448

ABSTRACT

BACKGROUND: Perception of low subjective social status (SSS) relative to others in society or in the community has been associated with increased risk of cardiovascular disease. Our objectives were to determine whether low SSS in society was associated with barriers to access to care or hospital readmission in patients with established cardiovascular disease, and whether perceptions of discordantly high SSS in the community modified this association. METHODS: We conducted a prospective cohort study from 2009 to 2013 in Canada, United States, and Switzerland in patients admitted to hospital with acute coronary syndrome (ACS). Data on access to care and SSS variables were obtained at baseline. Readmission data were obtained 12 months post-discharge. We conducted multivariable logistic regression to model the odds of access to care and readmission outcomes in those with low versus high societal SSS. RESULTS: One thousand ninety patients admitted with ACS provided both societal and community SSS rankings. The low societal SSS cohort had greater odds of reporting that their health was affected by lack of health care access (OR 1.48, 95% CI 1.11, 1.97) and of experiencing cardiac readmissions (1.88, 95% CI 1.15, 3.06). Within the low societal SSS cohort, there was a trend toward fewer access to care barriers for those with discordantly high community SSS though findings varied based on the outcome variable. There were no statistically significant differences in readmissions based on community SSS rankings. CONCLUSION: Low societal SSS is associated with increased barriers to access to care and cardiac readmissions. Though attenuated, these trends remained even when adjusting for clinical and sociodemographic factors, suggesting that perceived low societal SSS has health effects above and beyond objective socioeconomic factors. Furthermore, high community SSS may potentially mitigate the risk of experiencing barriers to access to health care in those with low societal SSS, though these associations were not statistically significant. Subjective social status relative to society versus relative to the community seem to represent distinct concepts. Insight into the differences between these two SSS constructs is imperative in the understanding of cardiovascular health and future development of public health policies.


Subject(s)
Acute Coronary Syndrome/epidemiology , Acute Coronary Syndrome/therapy , Health Services Accessibility , Healthcare Disparities , Social Class , Acute Coronary Syndrome/diagnosis , Adolescent , Adult , Canada/epidemiology , Chi-Square Distribution , Health Status , Humans , Logistic Models , Male , Middle Aged , Multivariate Analysis , Odds Ratio , Patient Readmission , Prospective Studies , Risk Factors , Switzerland/epidemiology , Time Factors , Treatment Outcome , United States/epidemiology , Young Adult
10.
Appl Nurs Res ; 44: 18-24, 2018 12.
Article in English | MEDLINE | ID: mdl-30389055

ABSTRACT

AIM: This paper examines HIV-infected Asian Americans' experiences with religion throughout the course of their illness and their family relationships. BACKGROUND: As the number of Asians in the United States continues to grow, health professionals are beginning notice obvious gaps of knowledge in caring for this population, including HIV-infected individuals. Little is known about the impact of religion and faith on Asian Americans with HIV and their families. The study focuses on the participants' reported experiences to understand the variety of roles religion can play in the progression of a highly stigmatized chronic disease. METHODS: An in-depth interview was conducted in San Francisco and New York City with 30 HIV-infected Asians. Narrative samples and summarized responses was used to highlight themes that emerged from the participants' anecdotes. Interpretive content analysis was employed. RESULTS: These groups were categorized as (a) those who did not adhere to any religion, (b) those of tenuous religious faith with conflicted feelings, and (c) those of strong religious faith with congruent beliefs. Within these three groups, various themes were synthesized from the members' perceptions and past experiences with religion. Within each group, participants displayed various stages of reconciliation with their current faith-related beliefs and escape the family stress from their religion practices. Each participant's story shown the vast range of human understanding and faith experiences including self-actualization, acculturation, and depression. CONCLUSIONS: This research provides new insight on the challenge of managing HIV-infected patients in a culturally and religiously appropriate manner.


Subject(s)
Asian/psychology , Emigrants and Immigrants/psychology , Family/ethnology , Family/psychology , HIV Infections/ethnology , HIV Infections/psychology , Spirituality , Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Qualitative Research , United States/ethnology
12.
BMC Geriatr ; 17(1): 252, 2017 10 27.
Article in English | MEDLINE | ID: mdl-29078750

ABSTRACT

BACKGROUND: Vascular dementia (VaD) is the second most common form of dementia. However, there were mixed evidences about the association between blood pressure (BP) and risk of VaD in midlife and late life and limited evidence on the association between pulse pressure and VaD. METHODS: This is a population-based observational study. 265,897 individuals with at least one BP measurement between the ages of 60 to 65 years and 211,116 individuals with at least one BP measurement between the ages of 70 to 75 years were extracted from The Health Improvement Network in United Kingdom. Blood pressures were categorized into four groups: normal, prehypertension, stage 1 hypertension, and stage 2 hypertension. Cases of VaD were identified from the recorded clinical diagnoses. Multivariable survival analysis was used to adjust other confounders and competing risk of death. All the analysis were stratified based on antihypertensive drug use status. Multiple imputation was used to fill in missing values. RESULTS: After accounting for the competing risk of death and adjustment for potential confounders, there was an association between higher BP levels in the age 60-65 cohort with the risk of developing VaD (hazard ratio [HR] 1.53 (95% confidence interval: 1.04, 2.25) for prehypertension, 1.90 (1.30, 2.78) for stage 1 hypertension, and 2.19 (1.48, 3.26) for stage 2 hypertension) in the untreated group. There was no statistically significant association between BP levels and VaD in the treated group in the age 60-65 cohort and age 70-75 cohort. Analysis on Pulse Pressure (PP) stratified by blood pressure level showed that PP was not independently associated with VaD. CONCLUSION: High BP between the ages of 60 to 65 years is a significant risk for VaD in late midlife. Greater efforts should be placed on early diagnosis of hypertension and tight control of BP for hypertensive patients for the prevention of VaD.


Subject(s)
Dementia, Vascular/etiology , Dementia, Vascular/physiopathology , Hypertension/complications , Age Factors , Aged , Antihypertensive Agents/therapeutic use , Blood Pressure/physiology , Cohort Studies , Dementia, Vascular/diagnosis , Female , Humans , Hypertension/diagnosis , Hypertension/drug therapy , Male , Middle Aged , Proportional Hazards Models , Risk , United Kingdom
13.
BMC Health Serv Res ; 17(1): 766, 2017 Nov 22.
Article in English | MEDLINE | ID: mdl-29166905

ABSTRACT

BACKGROUND: Administrative health data are increasingly used for research and surveillance to inform decision-making because of its large sample sizes, geographic coverage, comprehensivity, and possibility for longitudinal follow-up. Within Canadian provinces, individuals are assigned unique personal health numbers that allow for linkage of administrative health records in that jurisdiction. It is therefore necessary to ensure that these data are of high quality, and that chart information is accurately coded to meet this end. Our objective is to explore the potential barriers that exist for high quality data coding through qualitative inquiry into the roles and responsibilities of medical chart coders. METHODS: We conducted semi-structured interviews with 28 medical chart coders from Alberta, Canada. We used thematic analysis and open-coded each transcript to understand the process of administrative health data generation and identify barriers to its quality. RESULTS: The process of generating administrative health data is highly complex and involves a diverse workforce. As such, there are multiple points in this process that introduce challenges for high quality data. For coders, the main barriers to data quality occurred around chart documentation, variability in the interpretation of chart information, and high quota expectations. CONCLUSIONS: This study illustrates the complex nature of barriers to high quality coding, in the context of administrative data generation. The findings from this study may be of use to data users, researchers, and decision-makers who wish to better understand the limitations of their data or pursue interventions to improve data quality.


Subject(s)
Clinical Coding/standards , Data Accuracy , Alberta , Documentation , Health Information Management/standards , Humans , Interviews as Topic , Medical Record Administrators , Medical Records/standards , Qualitative Research
14.
BMC Health Serv Res ; 17(1): 135, 2017 02 13.
Article in English | MEDLINE | ID: mdl-28193217

ABSTRACT

BACKGROUND: Though pharmacy claims data are commonly used to study medication adherence, there remains no standard operational definition for adherence especially for patients on multiple medications. Even when studies use the same terminology, the actual methods of calculating adherence can differ drastically. It is unclear whether the use of different definitions results in different conclusions regarding adherence and associated outcomes. The objective of our study was to compare adherence rates and associations with mortality using different operational definitions of adherence, and using various methods of handling concurrent medication use. METHODS: We conducted a cohort study of patients aged ≥65 years from Manitoba, Canada, with incident hypertension diagnosed in 2004 and followed to 2009. We calculated adherence rates to anti-hypertensive medications using different operational definitions of medication adherence (including interval and prescription based medication possession ratios [MPR] and proportion of days covered [PDC]). For those on concurrent medications, we calculated adherence rates using the different methods of handling concurrent medication use, for each definition. We used logistic regression to determine the association between adherence and mortality for each operational definition. RESULTS: Among 2199 patients, 24.1% to 90.5% and 71.2% to 92.7% were considered adherent when using fixed interval and prescription-based interval medication possession ratios [MPRi and MPRp] respectively, depending on how concurrent medications were handled. Adherence was inversely associated with death, with the strongest association for MPRp measures. This association was significant only when considering adherence to any anti-hypertensive [aOR 0.70, 95% CI 0.51, 0.97], or when the mean of the class-specific MPRp's [adjusted OR 0.71, 95% CI 0.53, 0.95] was used. No significant association existed when the highest or lowest class-specific MPRp was used as the adherence estimate. CONCLUSION: The range of adherence estimates varies widely depending on the operational definition used. Given less variation in adherence rates and their stronger association against mortality, we recommend using prescription-based MPR's to define medication adherence.


Subject(s)
Antihypertensive Agents/therapeutic use , Hypertension/drug therapy , Medication Adherence/statistics & numerical data , Adult , Aged , Aged, 80 and over , Drug Prescriptions/statistics & numerical data , Female , Humans , Hypertension/mortality , Logistic Models , Male , Manitoba/epidemiology , Middle Aged , Pharmaceutical Services/statistics & numerical data , Pharmacies/statistics & numerical data , Prescription Drugs/therapeutic use , Retrospective Studies
17.
Phys Chem Chem Phys ; 18(34): 23746-54, 2016 Sep 14.
Article in English | MEDLINE | ID: mdl-27514871

ABSTRACT

Lanthanum phosphate (LaP) nano-rods were synthesized using n-butylamine as a shape-directing agent (SDA). The resulting catalysts were applied in the dehydration of lactic acid to acrylic acid. Aiming to understand the nature of the active sites, the chemical and physical properties of LaP materials were studied using a variety of characterization techniques. This study showed that the SDA not only affected the porosity of the LaP materials but also modified the acid-base properties. Clearly, the modification of the acid-base properties played a more critical role in determining the catalytic performance than porosity. An optimized catalytic performance was obtained on the LaP catalyst with a higher concentration of Lewis acid sites. Basic sites showed negative effects on the stability of the catalysts. Good stability was achieved when the catalyst was prepared using the appropriate SDA/La ratio.

18.
Proc Natl Acad Sci U S A ; 109(41): 16678-83, 2012 Oct 09.
Article in English | MEDLINE | ID: mdl-23012457

ABSTRACT

The grazing activity of predators on photosynthetic organisms is a major mechanism of mortality and population restructuring in natural environments. Grazing is also one of the primary difficulties in growing cyanobacteria and other microalgae in large, open ponds for the production of biofuels, as contaminants destroy valuable biomass and prevent stable, continuous production of biofuel crops. To address this problem, we have isolated a heterolobosean amoeba, HGG1, that grazes upon unicellular and filamentous freshwater cyanobacterial species. We have established a model predator-prey system using this amoeba and Synechococcus elongatus PCC 7942. Application of amoebae to a library of mutants of S. elongatus led to the identification of a grazer-resistant knockout mutant of the wzm ABC O-antigen transporter gene, SynPCC7942_1126. Mutations in three other genes involved in O-antigen synthesis and transport also prevented the expression of O-antigen and conferred resistance to HGG1. Complementation of these rough mutants returned O-antigen expression and susceptibility to amoebae. Rough mutants are easily identifiable by appearance, are capable of autoflocculation, and do not display growth defects under standard laboratory growth conditions, all of which are desired traits for a biofuel production strain. Thus, preventing the production of O-antigen is a pathway for producing resistance to grazing by certain amoebae.


Subject(s)
ATP-Binding Cassette Transporters/metabolism , Amoeba/physiology , Bacterial Proteins/metabolism , O Antigens/biosynthesis , Synechococcus/growth & development , ATP-Binding Cassette Transporters/genetics , Amoeba/classification , Amoeba/genetics , Bacterial Proteins/genetics , Base Sequence , Biomass , DNA, Protozoan/chemistry , DNA, Protozoan/genetics , Electrophoresis, Polyacrylamide Gel , Microscopy, Phase-Contrast , Molecular Sequence Data , Mutation , Phylogeny , RNA, Ribosomal, 18S/genetics , Sequence Analysis, DNA , Sequence Homology, Nucleic Acid , Synechococcus/genetics , Synechococcus/metabolism
19.
BMJ Open ; 14(5): e078872, 2024 May 24.
Article in English | MEDLINE | ID: mdl-38803244

ABSTRACT

INTRODUCTION: Social networks can affect health beliefs, behaviours and outcomes through various mechanisms, including social support, social influence and information diffusion. Social network analysis (SNA), an approach which emerged from the relational perspective in social theory, has been increasingly used in health research. This paper outlines the protocol for a scoping review of literature that uses social network analytical tools to examine the effects of social connections on individual non-communicable disease and health outcomes. METHODS AND ANALYSIS: This scoping review will be guided by Arksey and O'Malley's framework for conducting scoping reviews. A search of the electronic databases, Ovid Medline, PsycINFO, EMBASE and CINAHL, will be conducted in April 2024 using terms related to SNA. Two reviewers will independently assess the titles and abstracts, then the full text, of identified studies to determine whether they meet inclusion criteria. Studies that use SNA as a tool to examine the effects of social networks on individual physical health, mental health, well-being, health behaviours, healthcare utilisation, or health-related engagement, knowledge, or trust will be included. Studies examining communicable disease prevention, transmission or outcomes will be excluded. Two reviewers will extract data from the included studies. Data will be presented in tables and figures, along with a narrative synthesis. ETHICS AND DISSEMINATION: This scoping review will synthesise data from articles published in peer-reviewed journals. The results of this review will map the ways in which SNA has been used in non-communicable disease health research. It will identify areas of health research where SNA has been heavily used and where future systematic reviews may be needed, as well as areas of opportunity where SNA remains a lesser-used method in exploring the relationship between social connections and health outcomes.


Subject(s)
Social Network Analysis , Humans , Research Design , Social Networking , Social Support , Review Literature as Topic , Health Behavior
20.
J Patient Rep Outcomes ; 8(1): 20, 2024 Feb 21.
Article in English | MEDLINE | ID: mdl-38381258

ABSTRACT

BACKGROUND: In the past few decades, particularly in the mental health setting, there has been growing interest in using Patient Reported Outcome Measures (PROMs) to assess the efficacy of the treatments in healthcare systems. Despite recent initiatives for global harmonization, there remains a lack of consensus on which PROMs are best practice and appropriate. Engagement of the service users, such as patients and family members/caregivers, is vital at this stage to ensure the selected PROMs are feasible, relevant, and acceptable to them. This study aimed to prioritize PROMs by youth and family/caregiver based on feasibility, relevance, and overall importance to be used in the clinical care of youth living with anxiety and/or depression. METHODS: Ten validated and widely used PROMs were presented to the patients and family/caregivers. Nominal group techniques were employed to prioritize the PROMs based on feasibility, relevance, and overall importance. RESULTS: For patients and families/caregivers, the PROMs, Revised Child Anxiety and Depression Scale (RCAD 25), and The Young Person's Core (YP-CORE) were the highest priorities. Both felt that RCAD 25 was comprehensive, short, easy, and quick to complete, whereas regarding YP-CORE, patients and family/caregivers thought it was also short and relevant. Due to some specific concerns, the Strength and Difficulties Questionnaire and Child Health Questionnaire were the lowest prioritized by patients and family/caregivers. CONCLUSION: It is of utmost importance that patient's and family/caregivers' voices or opinions are considered while selecting and implementing PROMs in mental health settings. Our study provides practical recommendations around measures best suited to achieve this.


Subject(s)
Anxiety , Mental Health , Child , Humans , Adolescent , Anxiety/therapy , Anxiety Disorders , Consensus , Patient Reported Outcome Measures
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