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Long-term stability of pleural fluid carcinoembryonic antigen and its effect on the diagnostic accuracy for malignant pleural effusion

Thorac Cancer. 2023 Jun 14. doi: 10.1111/1759-7714.14996. Online ahead of print.

ABSTRACT

BACKGROUND: The in vitro stability assessment is essential for investigating the diagnostic accuracy of pleural biomarkers. This study aimed to investigate the long-term stability of pleural fluid carcinoembryonic antigen (CEA) at -80°C to -70°C. In addition, we analyzed the effects of frozen storage on the diagnostic accuracy of CEA for malignant pleural effusion (MPE).

METHODS: Pleural fluid CEA of participants in two prospective cohorts were stored at -80°C to -70°C for 1-3 years. The CEA level in the stored specimen was measured with an immunoassay, and its level in the fresh specimen was extracted from medical records. The Bland-Altman method, Passing-Bablok regression, and Deming regression were used to analyze the agreement of CEA between the fresh and frozen pleural fluid. In addition, we used receiver operating characteristic (ROC) curves to evaluate the diagnostic accuracy of CEA in the fresh and frozen specimens for MPE.

RESULTS: A total of 210 participants were enrolled. The median CEA levels in frozen and fresh pleural fluid specimens were similar (frozen, 2.32 ng/mL; fresh, 2.59 ng/mL; p < 0.01). The slopes and intercepts in the Passing-Bablok regression (intercept 0.01, slope 1.04) and Deming regression (intercept 0.65; slope 1.00) were not statistically significant (p > 0.05 for all). No significant difference was observed between the area under the ROC curves of CEA in the fresh and frozen specimens (p > 0.05 for all).

CONCLUSION: Pleural fluid CEA is seemingly stable when stored at -80°C to -70°C for 1-3 years. Frozen storage does not significantly affect the diagnostic accuracy of CEA for MPE.

PMID:37314828 | DOI:10.1111/1759-7714.14996

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PeakDetective: A Semisupervised Deep Learning-Based Approach for Peak Curation in Untargeted Metabolomics

Anal Chem. 2023 Jun 14. doi: 10.1021/acs.analchem.3c00764. Online ahead of print.

ABSTRACT

Peak-detection algorithms currently used to process untargeted metabolomics data were designed to maximize sensitivity at the sacrifice of selectively. Peak lists returned by conventional software tools therefore contain a high density of artifacts that do not represent real chemical analytes, which, in turn, hinder downstream analyses. Although some innovative approaches to remove artifacts have recently been introduced, they involve extensive user intervention due to the diversity of peak shapes present within and across metabolomics data sets. To address this bottleneck in metabolomics data processing, we developed a semisupervised deep learning-based approach, PeakDetective, for classification of detected peaks as artifacts or true peaks. Our approach utilizes two techniques for artifact removal. First, an unsupervised autoencoder is used to extract a low-dimensional, latent representation of each peak. Second, a classifier is trained with active learning to discriminate between artifacts and true peaks. Through active learning, the classifier is trained with less than 100 user-labeled peaks in a matter of minutes. Given the speed of its training, PeakDetective can be rapidly tailored to specific LC/MS methods and sample types to maximize performance on each type of data set. In addition to curation, the trained models can also be utilized for peak detection to immediately detect peaks with both high sensitivity and selectivity. We validated PeakDetective on five diverse LC/MS data sets, where PeakDetective showed greater accuracy compared to current approaches. When applied to a SARS-CoV-2 data set, PeakDetective enabled more statistically significant metabolites to be detected. PeakDetective is open source and available as a Python package at https://github.com/pattilab/PeakDetective.

PMID:37314824 | DOI:10.1021/acs.analchem.3c00764

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Large Discrepancies in Dementia Mortality Reported in Vital Statistics: The Need for Improved Data to Inform Policy

Alzheimer Dis Assoc Disord. 2023 Jun 8. doi: 10.1097/WAD.0000000000000562. Online ahead of print.

ABSTRACT

PURPOSE: There is limited understanding of the intercountry comparability of dementia mortality data. This study compares reported dementia mortality in national vital statistics between countries and over time. In countries with low dementia reporting, this study identifies other causes to which dementia may be misclassified.

METHODS: Using the World Health Organization (WHO) Mortality Database, we calculated the ratio of reported to expected (Global Burden of Disease estimated) age-standardized dementia death rates in 90 countries from 2000 to 2019. Other causes to which dementia may be misclassified were identified as having relatively high cause fractions compared with other countries.

PATIENTS: No patients were involved.

RESULTS: There is a large intercountry variation in reported dementia mortality rates. The ratio of reported to expected dementia mortality exceeded 100% in high-income countries but was below 50% in other super regions. In countries with low reported dementia mortality, cardiovascular diseases, ill-defined causes, and pneumonia have relatively high cause fractions and may be misclassified from dementia.

DISCUSSION: Large discrepancies in dementia mortality reporting between countries, including often implausibly low reported mortality, makes comparison extremely difficult. Improved guidance for and training of certifiers and the use of multiple cause-of-death data can help strengthen the policy utility of dementia mortality data.

PMID:37314817 | DOI:10.1097/WAD.0000000000000562

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Racial, Ethnic, and Socioeconomic Differences in Food Allergies in the US

JAMA Netw Open. 2023 Jun 1;6(6):e2318162. doi: 10.1001/jamanetworkopen.2023.18162.

ABSTRACT

IMPORTANCE: Food allergies affect approximately 8% of children and 11% of adults in the US. Racial differences in food allergy outcomes have previously been explored among Black and White children, but little is known about the distribution of food allergies across other racial, ethnic, and socioeconomic subpopulations.

OBJECTIVE: To estimate the national distribution of food allergies across racial, ethnic, and socioeconomic groups in the US.

DESIGN, SETTING, AND PARTICIPANTS: In this cross-sectional survey study, conducted from October 9, 2015, to September 18, 2016, a population-based survey was administered online and via telephone. A US nationally representative sample was surveyed. Participants were recruited using both probability- and nonprobability-based survey panels. Statistical analysis was performed from September 1, 2022, through April 10, 2023.

EXPOSURES: Demographic and food allergy-related participant characteristics.

MAIN OUTCOMES AND MEASURES: Stringent symptom criteria were developed to distinguish respondents with a “convincing” food allergy from those with similar symptom presentations (ie, food intolerance or oral allergy syndrome), with or without physician diagnosis. The prevalence of food allergies and their clinical outcomes, such as emergency department visits, epinephrine autoinjector use, and severe reactions, were measured across race (Asian, Black, White, and >1 race or other race), ethnicity (Hispanic and non-Hispanic), and household income. Complex survey-weighted proportions were used to estimate prevalence rates.

RESULTS: The survey was administered to 51 819 households comprising 78 851 individuals (40 443 adults and parents of 38 408 children; 51.1% women [95% CI, 50.5%-51.6%]; mean [SD] age of adults, 46.8 [24.0] years; mean [SD] age of children, 8.7 [5.2] years): 3.7% Asian individuals, 12.0% Black individuals, 17.4% Hispanic individuals, 62.2% White individuals, and 4.7% individuals of more than 1 race or other race. Non-Hispanic White individuals across all ages had the lowest rate of self-reported or parent-reported food allergies (9.5% [95% CI, 9.2%-9.9%]) compared with Asian (10.5% [95% CI, 9.1%-12.0%]), Hispanic (10.6% [95% CI, 9.7%-11.5%]), and non-Hispanic Black (10.6% [95% CI, 9.8%-11.5%]) individuals. The prevalence of common food allergens varied by race and ethnicity. Non-Hispanic Black individuals were most likely to report allergies to multiple foods (50.6% [95% CI, 46.1%-55.1%]). Asian and non-Hispanic White individuals had the lowest rates of severe food allergy reactions (Asian individuals, 46.9% [95% CI, 39.8%-54.1%] and non-Hispanic White individuals, 47.8% [95% CI, 45.9%-49.7%]) compared with individuals of other races and ethnicities. The prevalence of self-reported or parent-reported food allergies was lowest within households earning more than $150 000 per year (8.3% [95% CI, 7.4%-9.2%]).

CONCLUSIONS AND RELEVANCE: This survey study of a US nationally representative sample suggests that the prevalence of food allergies was highest among Asian, Hispanic, and non-Hispanic Black individuals compared with non-Hispanic White individuals in the US. Further assessment of socioeconomic factors and corresponding environmental exposures may better explain the causes of food allergy and inform targeted management and interventions to reduce the burden of food allergies and disparities in outcomes.

PMID:37314805 | DOI:10.1001/jamanetworkopen.2023.18162

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Pregnancy, Delivery, and Neonatal Outcomes Associated With Maternal Obsessive-Compulsive Disorder: Two Cohort Studies in Sweden and British Columbia, Canada

JAMA Netw Open. 2023 Jun 1;6(6):e2318212. doi: 10.1001/jamanetworkopen.2023.18212.

ABSTRACT

IMPORTANCE: Obsessive-compulsive disorder (OCD) is associated with adverse health-related outcomes. However, pregnancy and neonatal outcomes among women with OCD have been sparsely studied.

OBJECTIVE: To evaluate associations of maternal OCD with pregnancy, delivery, and neonatal outcomes.

DESIGN, SETTING, AND PARTICIPANTS: Two register-based cohort studies in Sweden and British Columbia (BC), Canada, included all singleton births at 22 weeks or more of gestation between January 1, 1999 (Sweden), or April 1, 2000 (BC), and December 31, 2019. Statistical analyses were conducted between August 1, 2022, and February 14, 2023.

EXPOSURE: Maternal OCD diagnosis recorded before childbirth and use of serotonin reuptake inhibitors (SRIs) during pregnancy.

MAIN OUTCOMES AND MEASURES: Pregnancy and delivery outcomes examined were gestational diabetes, preeclampsia, maternal infection, antepartum hemorrhage or placental abruption, premature rupture of membranes, induction of labor, mode of delivery, and postpartum hemorrhage. Neonatal outcomes included perinatal death, preterm birth, small for gestational age, low birth weight (<2500 g), low 5-minute Apgar score, neonatal hypoglycemia, neonatal jaundice, neonatal respiratory distress, neonatal infections, and congenital malformations. Multivariable Poisson log-linear regressions estimated crude and adjusted risk ratios (aRRs). In the Swedish cohort, sister and cousin analyses were performed to account for familial confounding.

RESULTS: In the Swedish cohort, 8312 pregnancies in women with OCD (mean [SD] age at delivery, 30.2 [5.1] years) were compared with 2 137 348 pregnancies in unexposed women (mean [SD] age at delivery, 30.2 [5.1] years). In the BC cohort, 2341 pregnancies in women with OCD (mean [SD] age at delivery, 31.0 [5.4] years) were compared with 821 759 pregnancies in unexposed women (mean [SD] age at delivery, 31.3 [5.5] years). In Sweden, maternal OCD was associated with increased risks of gestational diabetes (aRR, 1.40; 95% CI, 1.19-1.65) and elective cesarean delivery (aRR, 1.39; 95% CI, 1.30-1.49), as well as preeclampsia (aRR, 1.14; 95% CI, 1.01-1.29), induction of labor (aRR, 1.12; 95% CI, 1.06-1.18), emergency cesarean delivery (aRR, 1.16; 95% CI, 1.08-1.25), and postpartum hemorrhage (aRR, 1.13; 95% CI, 1.04-1.22). In BC, only emergency cesarean delivery (aRR, 1.15; 95% CI, 1.01-1.31) and antepartum hemorrhage or placental abruption (aRR, 1.48; 95% CI, 1.03-2.14) were associated with significantly higher risk. In both cohorts, offspring of women with OCD were at elevated risk of low Apgar score at 5 minutes (Sweden: aRR, 1.62; 95% CI, 1.42-1.85; BC: aRR, 2.30; 95% CI, 1.74-3.04), as well as preterm birth (Sweden: aRR, 1.33; 95% CI, 1.21-1.45; BC: aRR, 1.58; 95% CI, 1.32-1.87), low birth weight (Sweden: aRR, 1.28; 95% CI, 1.14-1.44; BC: aRR, 1.40; 95% CI, 1.07-1.82), and neonatal respiratory distress (Sweden: aRR, 1.63; 95% CI, 1.49-1.79; BC: aRR, 1.47; 95% CI, 1.20-1.80). Women with OCD taking SRIs during pregnancy had an overall increased risk of these outcomes, compared with those not taking SRIs. However, women with OCD not taking SRIs still had increased risks compared with women without OCD. Sister and cousin analyses showed that at least some of the associations were not influenced by familial confounding.

CONCLUSION AND RELEVANCE: These cohort studies suggest that maternal OCD was associated with an increased risk of adverse pregnancy, delivery, and neonatal outcomes. Improved collaboration between psychiatry and obstetric services and improved maternal and neonatal care for women with OCD and their children is warranted.

PMID:37314804 | DOI:10.1001/jamanetworkopen.2023.18212

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Use of Clinicians Who Focus on Nursing Home Care Among US Nursing Homes and Unplanned Rehospitalization

JAMA Netw Open. 2023 Jun 1;6(6):e2318265. doi: 10.1001/jamanetworkopen.2023.18265.

ABSTRACT

IMPORTANCE: The number of physicians and advanced practitioners who focus their practice in nursing homes (NHs), often referred to as “SNFists” (ie, physicians, nurse practitioners, and physician assistants concentrating their practice in the nursing home or skilled nursing facility [SNF] setting) has increased dramatically. Little is known about the association of the NH medical care delivery models that use SNFists with the quality of postacute care.

OBJECTIVE: To quantify the association between NH use of SNFists and facility-level, unplanned 30-day rehospitalization rates for patients receiving postacute care.

DESIGN, SETTING, AND PARTICIPANTS: This cohort study used Medicare fee-for-service claims for all hospitalized beneficiaries discharged to 4482 NHs from January 1, 2012, through December 31, 2019. The study sample comprised NHs that did not have patients under the care of SNFists as of 2012. The treatment group included NHs that adopted at least 1 SNFist by the end of the study period. The control group included NHs that did not have patients under the care of a SNFist during the study period. SNFists were defined as generalist physicians and advanced practitioners with 80% or more of their Medicare Part B services delivered in NHs. Statistical analysis was conducted from January 2022 to April 2023.

EXPOSURE: Nursing home adoption of 1 or more SNFists.

MAIN OUTCOMES AND MEASURES: The main outcome was the NH 30-day unplanned rehospitalization rate. A facility-level analysis was conducted using an event study approach to estimate the association of an NH adopting 1 or more SNFists with its unplanned 30-day rehospitalization rate, adjusting for patient case mix, facility, and market characteristics. Changes in patient case mix were examined in secondary analyses.

RESULTS: In this study of 4482 NHs, adoption of SNFists increased from 13.5% of facilities (550 of 4063) in 2013 to 52.9% (1935 of 3656) in 2018. Adjusted rehospitalization rates were not statistically different after SNFist adoption compared with before, with an estimated mean treatment effect of 0.05 percentage points (95% CI, -0.43 to 0.53 percentage points; P = .84). The share of Medicare-covered patients increased by 0.60 percentage points (95% CI, 0.21-0.99 percentage points; P = .003) in the year of SNFist adoption and by 0.54 percentage points (95% CI, 0.12-0.95 percentage points; P = .01) 1 year after adoption compared with NHs that did not adopt SNFists. The number of postacute admissions increased by 13.6 (95% CI, 9.7-17.5; P < .001) after SNFist adoption, but there was no statistically significant change in the acuity index.

CONCLUSIONS AND RELEVANCE: This cohort study suggests that NH adoption of SNFists was associated with an increase in the number of admissions for postacute care but was not associated with a change in rehospitalization rates. This may represent a strategy by NHs to maintain rehospitalization rates while increasing the volume of patients receiving postacute care, which typically results in higher profit margins.

PMID:37314803 | DOI:10.1001/jamanetworkopen.2023.18265

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Modifiability of Composite Cardiovascular Risk Associated With Chronic Kidney Disease in Type 2 Diabetes With Finerenone

JAMA Cardiol. 2023 Jun 14. doi: 10.1001/jamacardio.2023.1505. Online ahead of print.

ABSTRACT

IMPORTANCE: It is currently unclear whether chronic kidney disease (CKD)-associated cardiovascular risk in type 2 diabetes (T2D) is modifiable.

OBJECTIVE: To examine whether cardiovascular risk can be modified with finerenone in patients with T2D and CKD.

DESIGN, SETTING, AND PARTICIPANTS: Incidence rates from Finerenone in Chronic Kidney Disease and Type 2 Diabetes: Combined FIDELIO-DKD and FIGARO-DKD Trial Programme Analysis (FIDELITY), a pooled analysis of 2 phase 3 trials (including patients with CKD and T2D randomly assigned to receive finerenone or placebo) were combined with National Health and Nutrition Examination Survey data to simulate the number of composite cardiovascular events that may be prevented per year with finerenone at a population level. Data were analyzed over 4 years of consecutive National Health and Nutrition Examination Survey data cycles (2015-2016 and 2017-2018).

MAIN OUTCOMES AND MEASURES: Incidence rates of cardiovascular events (composite of cardiovascular death, nonfatal stroke, nonfatal myocardial infarction, or hospitalization for heart failure) were estimated over a median of 3.0 years by estimated glomerular filtration rate (eGFR) and albuminuria categories. The outcome was analyzed using Cox proportional hazards models stratified by study, region, eGFR and albuminuria categories at screening, and cardiovascular disease history.

RESULTS: This subanalysis included a total of 13 026 participants (mean [SD] age, 64.8 [9.5] years; 9088 male [69.8%]). Lower eGFR and higher albuminuria were associated with higher incidences of cardiovascular events. For recipients in the placebo group with an eGFR of 90 or greater, incidence rates per 100 patient-years were 2.38 (95% CI, 1.03-4.29) in those with a urine albumin to creatinine ratio (UACR) less than 300 mg/g and 3.78 (95% CI, 2.91-4.75) in those with UACR of 300 mg/g or greater. In those with eGFR less than 30, incidence rates increased to 6.54 (95% CI, 4.19-9.40) vs 8.74 (95% CI, 6.78-10.93), respectively. In both continuous and categorical models, finerenone was associated with a reduction in composite cardiovascular risk (hazard ratio, 0.86; 95% CI, 0.78-0.95; P = .002) irrespective of eGFR and UACR (P value for interaction = .66). In 6.4 million treatment-eligible individuals (95% CI, 5.4-7.4 million), 1 year of finerenone treatment was simulated to prevent 38 359 cardiovascular events (95% CI, 31 741-44 852), including approximately 14 000 hospitalizations for heart failure, with 66% (25 357 of 38 360) prevented in patients with eGFR of 60 or greater.

CONCLUSIONS AND RELEVANCE: Results of this subanalysis of the FIDELITY analysis suggest that CKD-associated composite cardiovascular risk may be modifiable with finerenone treatment in patients with T2D, those with eGFR of 25 or higher, and those with UACR of 30 mg/g or greater. UACR screening to identify patients with T2D and albuminuria with eGFR of 60 or greater may provide significant opportunities for population benefits.

PMID:37314801 | DOI:10.1001/jamacardio.2023.1505

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Association of Intraoperative Opioid Administration With Postoperative Pain and Opioid Use

JAMA Surg. 2023 Jun 14. doi: 10.1001/jamasurg.2023.2009. Online ahead of print.

ABSTRACT

IMPORTANCE: Opioids administered to treat postsurgical pain are a major contributor to the opioid crisis, leading to chronic use in a considerable proportion of patients. Initiatives promoting opioid-free or opioid-sparing modalities of perioperative pain management have led to reduced opioid administration in the operating room, but this reduction could have unforeseen detrimental effects in terms of postoperative pain outcomes, as the relationship between intraoperative opioid usage and later opioid requirements is not well understood.

OBJECTIVE: To characterize the association between intraoperative opioid usage and postoperative pain and opioid requirements.

DESIGN, SETTING, AND PARTICIPANTS: This retrospective cohort study evaluated electronic health record data from a quaternary care academic medical center (Massachusetts General Hospital) for adult patients who underwent noncardiac surgery with general anesthesia from April 2016 to March 2020. Patients who underwent cesarean surgery, received regional anesthesia, received opioids other than fentanyl or hydromorphone, were admitted to the intensive care unit, or who died intraoperatively were excluded. Statistical models were fitted on the propensity weighted data set to characterize the effect of intraoperative opioid exposures on primary and secondary outcomes. Data were analyzed from December 2021 to October 2022.

EXPOSURES: Intraoperative fentanyl and intraoperative hydromorphone average effect site concentration estimated using pharmacokinetic/pharmacodynamic models.

MAIN OUTCOMES AND MEASURES: The primary study outcomes were the maximal pain score during the postanesthesia care unit (PACU) stay and the cumulative opioid dose, quantified in morphine milligram equivalents (MME), administered during the PACU stay. Medium- and long-term outcomes associated with pain and opioid dependence were also evaluated.

RESULTS: The study cohort included a total of 61 249 individuals undergoing surgery (mean [SD] age, 55.44 [17.08] years; 32 778 [53.5%] female). Increased intraoperative fentanyl and intraoperative hydromorphone were both associated with reduced maximum pain scores in the PACU. Both exposures were also associated with a reduced probability and reduced total dosage of opioid administration in the PACU. In particular, increased fentanyl administration was associated with lower frequency of uncontrolled pain; a decrease in new chronic pain diagnoses reported at 3 months; fewer opioid prescriptions at 30, 90, and 180 days; and decreased new persistent opioid use, without significant increases in adverse effects.

CONCLUSIONS AND RELEVANCE: Contrary to prevailing trends, reduced opioid administration during surgery may have the unintended outcome of increasing postoperative pain and opioid consumption. Conversely, improvements in long-term outcomes might be achieved by optimizing opioid administration during surgery.

PMID:37314800 | DOI:10.1001/jamasurg.2023.2009

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Effect of Biologics on the Need for Procedural Interventions, Systemic Medications, and Healthcare Utilization in Patients with Hidradenitis Suppurativa: Real-World Data from the UNITE Registry

Dermatol Ther (Heidelb). 2023 Jun 14. doi: 10.1007/s13555-023-00954-8. Online ahead of print.

ABSTRACT

INTRODUCTION: Management of hidradenitis suppurativa (HS) often requires a combined medical/procedural approach. Biologics are frequently reserved for severe cases after irreversible tissue damage has occurred. We evaluated the association between consistent biologic use and the need for procedural interventions, systemic medications, and healthcare utilization.

METHODS: UNITE, a 4-year, global, prospective, observational, HS disease registry, documented the natural history, diagnostic/treatment patterns, and clinical outcomes of HS. Patients aged 12 years or more, with active HS were enrolled between October 2013 and December 2015 and evaluated every 6 months for 48 months at 73 sites across 12 countries (data cutoff December 2019). Proportions of patients requiring different HS procedures, systemic medications, and healthcare utilization were assessed during the 6-month periods before, during, and after biologic initiation for 12 weeks or more (i.e., consistent use).

RESULTS: There were 63 instances of initiation of consistent biologic use (adalimumab [81%], infliximab [16%], and ustekinumab [3%]) in 57 patients. Patients’ mean age was 40 years, 58% were female, and 53%/47% had Hurley stage II/III disease, respectively. Fewer patients required surgical/procedural interventions and systemic medications for the 6-month period during/6-month period after biologic initiation versus the 6-month period before biologic initiation, including intralesional corticosteroid injections (22%/14% vs 24%), incision and drainage (I&D) by physician (10%/10% vs 17%), I&D by patient (10%/10% vs 14%), surgical excision (8%/10% vs 11%), deroofing (5%/2% vs 5%), systemic antibiotics (43%/41% vs 54%), and systemic immunosuppressants (10%/6% vs 13%). Fewer patients required hospital admission for HS (17%/13% vs 21%) or emergency department visits for HS (8%/8% vs 16%) during the 6-month periods in which consistent biologics use started and continued versus the 6-month period before consistent biologic use.

CONCLUSION: Following initiation of consistent biologic use (12 weeks or more), fewer patients required acute procedural interventions, systemic medications, and healthcare utilization, supporting the importance of early biologic initiation.

PMID:37314696 | DOI:10.1007/s13555-023-00954-8

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Severe Acute Respiratory Syndrome (SARS) in the Context of the COVID-19 Pandemic Among Indigenous Peoples of Brazil: Epidemiology and Risk Factors Associated with Death

J Racial Ethn Health Disparities. 2023 Jun 14. doi: 10.1007/s40615-023-01660-z. Online ahead of print.

ABSTRACT

INTRODUCTION: Severe Acute Respiratory Syndrome (SARS) represents a serious public health problem for the indigenous peoples of Brazil, since acute respiratory infections are the main causes of morbidity and mortality in this population.

OBJECTIVE: To assess cases of SARS in Brazilian indigenous peoples in the context of the COVID-19 pandemic, as well as sociodemographic and health factors associated with deaths from SARS in this population.

METHODS: Ecological study carried out based on secondary data from the Brazilian Database for Epidemiological Surveillance of Influenza referring to the Brazilian indigenous population with SARS in 2020. The variables included sociodemographic factors and health conditions. Statistical analyses were carried out considering absolute (n) and relative (%) frequencies and logistic regression with odds ratios (OR), with death as the outcome of interest.

RESULTS: A total of 3062 cases were reported in the analyzed period. Of these, there was a predominance of men (54.6%), adults (41.4%), with comorbidities (52.3%), with low levels of schooling (67.4%) and residents of rural areas (55.8%). Cases and deaths were concentrated in the states of Amazonas and Mato Grosso do Sul, states in the North and Midwest of Brazil. A greater chance of death was observed in elderly indigenous people (OR = 6.29; 95%CI 4.71-8.39), with low levels of schooling (OR = 1.72; 95%CI 1.22-2.28), residents of rural areas (OR = 1.35; 95%CI 1.12-1.62), and with comorbidities (OR = 1.87; 95%CI 1.42-2.46), especially obesity (OR = 2.56; 95%CI 1.07-6.11).

CONCLUSION: The study was able to trace the clinical-epidemiological profile, as well as identify the groups of indigenous people most vulnerable to SARS as a result of COVID-19 and evolution to death in Brazil. The findings show the high impact on the morbidity and mortality of the Brazilian indigenous population exposed to SARS and are relevant for epidemiological health surveillance, since they can guide preventive public policy actions and quality of life measures for this ethnic group in Brazil.

PMID:37314690 | DOI:10.1007/s40615-023-01660-z