7 research outputs found
From Dynamic to Expressionism: An Arts Integration Study
The classroom based study âFrom Dynamic to Expressionism: An Arts Integration Studyâ was designed to answer the question; Will implementing an interdisciplinary art and music unit affect the level of student confidence in understanding expressionism in art? The researcher implemented an interdisciplinary art unit in two inner-city second grade classes. Throughout the study a survey was used for students to assess their confidence level and a checklist was used to observe student confidence during class time
Assessment of the patient, health system, and population eff ects of Xpert MTB/RIF and alternative diagnostics for tuberculosis in Tanzania: an integrated modelling approach
Background Several promising new diagnostic methods and algorithms for tuberculosis have been endorsed by
WHO. National tuberculosis programmes now face the decision on which methods to implement and where to place
them in the diagnostic algorithm.
Methods We used an integrated model to assess the eff ects of diff erent algorithms of Xpert MTB/RIF and lightemitting
diode (LED) fl uorescence microscopy in Tanzania. To understand the eff ects of new diagnostics from the
patient, health system, and population perspective, the model incorporated and linked a detailed operational
component and a transmission component. The model was designed to represent the operational and epidemiological
context of Tanzania and was used to compare the eff ects and cost-eff ectiveness of diff erent diagnostic options.
Findings Among the diagnostic options considered, we identifi ed three strategies as cost eff ective in Tanzania. Full
scale-up of Xpert would have the greatest population-level eff ect with the highest incremental cost: 346 000
disability-adjusted life-years (DALYs) averted with an additional cost of US169 per DALY averted, 95% credible interval [CrI]
104â265) is below the willingness-to-pay threshold (45 (95% CrI 25â74), followed by LED fl uorescence microscopy
with an ICER of $29 (6â59). Compared with same-day LED fl uorescence microscopy and Xpert full rollout, targeted
use of Xpert in presumptive tuberculosis cases with HIV infection, either as an initial diagnostic test or as a followon
test to microscopy, would produce DALY gains at a higher incremental cost and therefore is dominated in the
context of Tanzania.
Interpretation For Tanzania, this integrated modelling approach predicts that full rollout of Xpert is a cost-eff ective
option for tuberculosis diagnosis and has the potential to substantially reduce the national tuberculosis burden. It also
estimates the substantial level of funding that will need to be mobilised to translate this into clinical practice. This
approach could be adapted and replicated in other developing countries to inform rational health policy formulation
Effect of angiotensin-converting enzyme inhibitor and angiotensin receptor blocker initiation on organ support-free days in patients hospitalized with COVID-19
IMPORTANCE Overactivation of the renin-angiotensin system (RAS) may contribute to poor clinical outcomes in patients with COVID-19.
Objective To determine whether angiotensin-converting enzyme (ACE) inhibitor or angiotensin receptor blocker (ARB) initiation improves outcomes in patients hospitalized for COVID-19.
DESIGN, SETTING, AND PARTICIPANTS In an ongoing, adaptive platform randomized clinical trial, 721 critically ill and 58 nonâcritically ill hospitalized adults were randomized to receive an RAS inhibitor or control between March 16, 2021, and February 25, 2022, at 69 sites in 7 countries (final follow-up on June 1, 2022).
INTERVENTIONS Patients were randomized to receive open-label initiation of an ACE inhibitor (nâ=â257), ARB (nâ=â248), ARB in combination with DMX-200 (a chemokine receptor-2 inhibitor; nâ=â10), or no RAS inhibitor (control; nâ=â264) for up to 10 days.
MAIN OUTCOMES AND MEASURES The primary outcome was organ supportâfree days, a composite of hospital survival and days alive without cardiovascular or respiratory organ support through 21 days. The primary analysis was a bayesian cumulative logistic model. Odds ratios (ORs) greater than 1 represent improved outcomes.
RESULTS On February 25, 2022, enrollment was discontinued due to safety concerns. Among 679 critically ill patients with available primary outcome data, the median age was 56 years and 239 participants (35.2%) were women. Median (IQR) organ supportâfree days among critically ill patients was 10 (â1 to 16) in the ACE inhibitor group (nâ=â231), 8 (â1 to 17) in the ARB group (nâ=â217), and 12 (0 to 17) in the control group (nâ=â231) (median adjusted odds ratios of 0.77 [95% bayesian credible interval, 0.58-1.06] for improvement for ACE inhibitor and 0.76 [95% credible interval, 0.56-1.05] for ARB compared with control). The posterior probabilities that ACE inhibitors and ARBs worsened organ supportâfree days compared with control were 94.9% and 95.4%, respectively. Hospital survival occurred in 166 of 231 critically ill participants (71.9%) in the ACE inhibitor group, 152 of 217 (70.0%) in the ARB group, and 182 of 231 (78.8%) in the control group (posterior probabilities that ACE inhibitor and ARB worsened hospital survival compared with control were 95.3% and 98.1%, respectively).
CONCLUSIONS AND RELEVANCE In this trial, among critically ill adults with COVID-19, initiation of an ACE inhibitor or ARB did not improve, and likely worsened, clinical outcomes.
TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT0273570
Assessment of the patient, health system, and population effects of Xpert MTB/RIF and alternative diagnostics for tuberculosis in Tanzania: an integrated modelling approach
Background: Several promising new diagnostic methods and algorithms for tuberculosis have been endorsed by WHO. National tuberculosis programmes now face the decision on which methods to implement and where to place them in the diagnostic algorithm.
Methods: We used an integrated model to assess the effects of different algorithms of Xpert MTB/RIF and light-emitting diode (LED) fluorescence microscopy in Tanzania. To understand the effects of new diagnostics from the patient, health system, and population perspective, the model incorporated and linked a detailed operational component and a transmission component. The model was designed to represent the operational and epidemiological context of Tanzania and was used to compare the effects and cost-effectiveness of different diagnostic options.
Findings: Among the diagnostic options considered, we identified three strategies as cost effective in Tanzania. Full scale-up of Xpert would have the greatest population-level effect with the highest incremental cost: 346â000 disability-adjusted life-years (DALYs) averted with an additional cost of US169 per DALY averted, 95% credible interval [CrI] 104â265) is below the willingness-to-pay threshold (45 (95% CrI 25â74), followed by LED fluorescence microscopy with an ICER of $29 (6â59). Compared with same-day LED fluorescence microscopy and Xpert full rollout, targeted use of Xpert in presumptive tuberculosis cases with HIV infection, either as an initial diagnostic test or as a follow-on test to microscopy, would produce DALY gains at a higher incremental cost and therefore is dominated in the context of Tanzania.
Interpretation: For Tanzania, this integrated modelling approach predicts that full rollout of Xpert is a cost-effective option for tuberculosis diagnosis and has the potential to substantially reduce the national tuberculosis burden. It also estimates the substantial level of funding that will need to be mobilised to translate this into clinical practice. This approach could be adapted and replicated in other developing countries to inform rational health policy formulation.
Funding: United States Agency for International Development
A multi-country non-inferiority cluster randomized trial of frontloaded smear microscopy for the diagnosis of pulmonary tuberculosis.
Contains fulltext :
96579.pdf (publisher's version ) (Open Access)BACKGROUND: More than 50 million people around the world are investigated for tuberculosis using sputum smear microscopy annually. This process requires repeated visits and patients often drop out. METHODS AND FINDINGS: This clinical trial of adults with cough >/=2 wk duration (in Ethiopia, Nepal, Nigeria, and Yemen) compared the sensitivity/specificity of two sputum samples collected "on the spot" during the first visit plus one sputum sample collected the following morning (spot-spot-morning [SSM]) versus the standard spot-morning-spot (SMS) scheme. Analyses were per protocol analysis (PPA) and intention to treat (ITT). A sub-analysis compared just the first two smears of each scheme, spot-spot and spot-morning. In total, 6,627 patients (3,052 SSM/3,575 SMS) were enrolled; 6,466 had culture and 1,526 were culture-positive. The sensitivity of SSM (ITT, 70.2%, 95% CI 66.5%-73.9%) was non-inferior to the sensitivity of SMS (PPA, 65.9%, 95% CI 62.3%-69.5%). Similarly, the specificity of SSM (ITT, 96.9%, 95% CI 93.2%-99.9%) was non-inferior to the specificity of SMS (ITT, 97.6%, 95% CI 94.0%-99.9%). The sensitivity of spot-spot (ITT, 63.6%, 95% CI 59.7%-67.5%) was also non-inferior to spot-morning (ITT, 64.8%, 95% CI 61.3%-68.3%), as the difference was within the selected -5% non-inferiority limit (difference ITT = 1.4%, 95% CI -3.7% to 6.6%). Patients screened using the SSM scheme were more likely to provide the first two specimens than patients screened with the SMS scheme (98% versus 94.2%, p<0.01). The PPA and ITT analysis resulted in similar results. CONCLUSIONS: The sensitivity and specificity of SSM are non-inferior to those of SMS, with a higher proportion of patients submitting specimens. The scheme identifies most smear-positive patients on the first day of consultation. TRIAL REGISTRATION: Current Controlled Trials ISRCTN53339491. Please see later in the article for the Editors' Summary.1 juli 201