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Nevin Manimala Statistics

Multi-isocenter VMAT craniospinal irradiation using feasibility dose-volume histogram-guided auto-planning technique

J Radiat Res. 2023 May 4:rrad026. doi: 10.1093/jrr/rrad026. Online ahead of print.

ABSTRACT

This study aims to propose a novel treatment planning methodology for multi-isocenter volumetric modulated arc therapy (VMAT) craniospinal irradiation (CSI) using the special feasibility dose-volume histogram (FDVH)-guided auto-planning (AP) technique. Three different multi-isocenter VMAT -CSI plans were created, including manually based plans (MUPs), conventional AP plans (CAPs) and FDVH-guided AP plans (FAPs). The CAPs and FAPs were specially designed by combining multi-isocenter VMAT and AP techniques in the Pinnacle treatment planning system. Specially, the personalized optimization parameters for FAPs were generated using the FDVH function implemented in PlanIQ software, which provides the ideal organs at risk (OARs) sparing for the specific anatomical geometry based on the valuable assumption of the dose fall-off. Compared to MUPs, CAPs and FAPs significantly reduced the dose for most of the OARs. FAPs achieved the best homogeneity index (0.092 ± 0.013) and conformity index (0.980 ± 0.011), while CAPs were slightly inferior to the FAPs but superior to the MUPs. As opposed to MUPs, FAPs delivered a lower dose to OARs, whereas the difference between FAPs and CAPs was not statistically significant except for the optic chiasm and inner ear_L. The two AP approaches had similar MUs, which were significantly lower than the MUPs. The planning time of FAPs (145.00 ± 10.25 min) was slightly lower than that of CAPs (149.83 ± 14.37 min) and was substantially lower than that of MUPs (157.92 ± 16.11 min) with P < 0.0167. Overall, introducing the multi-isocenter AP technique into VMAT-CSI yielded positive outcomes and may play an important role in clinical CSI planning in the future.

PMID:37141634 | DOI:10.1093/jrr/rrad026

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Nevin Manimala Statistics

Timing and Preventability of Cardiovascular-Related Maternal Death

Obstet Gynecol. 2023 May 4. doi: 10.1097/AOG.0000000000005176. Online ahead of print.

ABSTRACT

OBJECTIVE: To describe the clinical profile, management, and potential preventability of maternal cardiovascular deaths.

METHODS: We conducted a retrospective, descriptive study of all maternal deaths resulting from a cardiovascular disease during pregnancy or up to 1 year after the end of pregnancy in France from 2007 to 2015. Deaths were identified through the nationwide permanent enhanced maternal mortality surveillance system (ENCMM [Enquête Nationale Confidentielle sur les Morts Maternelles]). Women were classified into four groups based on the assessment of the national experts committee: those who died of a cardiac condition and those who died of a vascular condition and, within these two groups, whether the condition was known before the acute event. Maternal characteristics, clinical features and components of suboptimal care, and preventability factors, which were assessed with a standard evaluation form, were described among those four groups.

RESULTS: During the 9-year period, 103 women died of cardiac or vascular disease, which corresponds to a maternal mortality ratio from these conditions of 1.4 per 100,000 live births (95% CI 1.1-1.7). Analyses were conducted on 93 maternal deaths resulting from cardiac (n=70) and vascular (n=23) disease with available data from confidential inquiry. More than two thirds of these deaths occurred in women with no known pre-existing cardiac or vascular condition. Among the 70 deaths resulting from a cardiac condition, 60.7% were preventable, and the main preventability factor was a lack of multidisciplinary prepregnancy and prenatal care for women with a known cardiac disease. For those with no known pre-existing cardiac condition, preventability factors were related mostly to inadequate prehospital care of the acute event, in particular an underestimation of the severity and inadequate investigation of the dyspnea. Among the 23 women who died of a vascular disease, three had previously known conditions. For women with no previously known vascular condition, 47.4% of deaths were preventable, and preventability factors were related mostly to wrong or delayed diagnosis and management of acute intense chest or abdominal pain in a pregnant woman.

CONCLUSION: Most maternal deaths attributable to cardiac or vascular diseases were potentially preventable. The preventability factors varied according to the cardiac or vascular site and whether the condition was known before pregnancy. A more granular understanding of the cause and related risk factors for maternal mortality is crucial to identify relevant opportunities for improving care and training health care professionals.

PMID:37141627 | DOI:10.1097/AOG.0000000000005176

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Nevin Manimala Statistics

The Temporal Relationship Between the Coronavirus Disease 2019 (COVID-19) Pandemic and Preterm Birth

Obstet Gynecol. 2023 May 4. doi: 10.1097/AOG.0000000000005171. Online ahead of print.

ABSTRACT

OBJECTIVE: To evaluate whether preterm birth rates changed in relation to the onset of the coronavirus disease 2019 (COVID-19) pandemic and whether any change depended on socioeconomic status.

METHODS: This is an observational cohort study of pregnant individuals with a singleton gestation who delivered in the years 2019 and 2020 at 1 of 16 U.S. hospitals of the Maternal-Fetal Medicine Units Network. The frequency of preterm birth for those who delivered before the onset of the COVID-19 pandemic (ie, in 2019) was compared with that of those who delivered after its onset (ie, in 2020). Interaction analyses were performed for people of different individual- and community-level socioeconomic characteristics (ie, race and ethnicity, insurance status, Social Vulnerability Index (SVI) of a person’s residence).

RESULTS: During 2019 and 2020, 18,526 individuals met inclusion criteria. The chance of preterm birth before the COVID-19 pandemic was similar to that after the onset of the pandemic (11.7% vs 12.5%, adjusted relative risk 0.94, 95% CI 0.86-1.03). In interaction analyses, race and ethnicity, insurance status, and the SVI did not modify the association between the epoch and the chance of preterm birth before 37 weeks of gestation (all interaction P>.05).

CONCLUSION: There was no statistically significant difference in preterm birth rates in relation to the COVID-19 pandemic onset. This lack of association was largely independent of socioeconomic indicators such as race and ethnicity, insurance status, or SVI of the residential community in which an individual lived.

PMID:37141586 | DOI:10.1097/AOG.0000000000005171

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Using Modernized Medicaid Data to Advance Evidence-Based Improvements in Maternal Health

Am J Public Health. 2023 May 4:e1-e6. doi: 10.2105/AJPH.2023.307287. Online ahead of print.

ABSTRACT

Medicaid is the primary payor for nearly half of all births in the United States and plays a disproportionate role in covering maternity care for low-income people, rural people, and minoritized racial groups. Newly available, modernized Medicaid claims data-the Transformed Medicaid Statistical Information System Analytic Files (TAF)-offer a significant opportunity to conduct novel research that can drive the development of evidence-based programs and policies for Medicaid beneficiaries before, during, and after pregnancy. Yet, the public health research community has so far underused the TAF for maternal health research. We provide an overview of the TAF and how they compare to other major data sets available to study maternal health. We highlight some major limitations of the TAF and offer strategies to maximize the potential of these novel data to accelerate timely, rigorous research to improve maternal health and health equity. (Am J Public Health. Published online ahead of print May 4, 2023:e1-e6. https://doi.org/10.2105/AJPH.2023.307287).

PMID:37141557 | DOI:10.2105/AJPH.2023.307287

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Nevin Manimala Statistics

Examining Smoking Prevalence Disparities in Virginia Counties by Rurality, Appalachian Status, and Social Vulnerability, 2011-2019

Am J Public Health. 2023 May 4:e1-e4. doi: 10.2105/AJPH.2023.307298. Online ahead of print.

ABSTRACT

Objectives. To estimate county-level cigarette smoking prevalence in Virginia and examine cigarette use disparities by rurality, Appalachian status, and county-level social vulnerability. Methods. We used 2011-2019 Virginia Behavioral Risk Factor Surveillance System proprietary data with geographical information to estimate county-level cigarette smoking prevalence using small area estimation. We used the Centers for Disease Control and Prevention’s social vulnerability index to quantify social vulnerability. We used the 2-sample statistical t test to determine the differences in cigarette smoking prevalence and social vulnerability between counties by rurality and Appalachian status. Results. The absolute difference in smoking prevalence was 6.16 percentage points higher in rural versus urban counties and 7.52 percentage points higher in Appalachian versus non-Appalachian counties in Virginia (P < .001). Adjusting for county characteristics, a higher social vulnerability index is associated with increased cigarette use. Rural Appalachian counties had 7.41% higher cigarette use rates than did urban non-Appalachian areas. Tobacco agriculture and a shortage of health care providers were significantly associated with higher cigarette use prevalence. Conclusions. Rural Appalachia and socially vulnerable counties in Virginia have alarmingly high rates of cigarette use. Implementation of targeted intervention strategies could reduce cigarette use, ultimately reducing tobacco-related health disparities. (Am J Public Health. Published online ahead of print May 4, 2023:e1-e4. https://doi.org/10.2105/AJPH.2023.307298).

PMID:37141556 | DOI:10.2105/AJPH.2023.307298

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US Food and Drug Administration Approval Summary: Nivolumab Plus Platinum-Doublet Chemotherapy for the Neoadjuvant Treatment of Patients With Resectable Non-Small-Cell Lung Cancer

J Clin Oncol. 2023 May 4:JCO2202509. doi: 10.1200/JCO.22.02509. Online ahead of print.

ABSTRACT

PURPOSE: On March 4, 2022, the US Food and Drug Administration (FDA) approved nivolumab plus platinum-doublet chemotherapy for the neoadjuvant treatment of patients with resectable non-small-cell lung cancer (NSCLC). We discuss the FDA’s review of the key data and regulatory considerations supporting this approval.

PATIENTS AND METHODS: The approval was based on the results of CheckMate 816, an international, multiregional, active-controlled trial that randomly assigned 358 patients with resectable NSCLC, stage IB (≥4 cm) to IIIA (N2) per the American Joint Committee on Cancer seventh staging edition to receive either nivolumab plus platinum-doublet or platinum-doublet chemotherapy alone for three cycles before planned surgical resection. The major efficacy end point that supported this approval was event-free survival (EFS).

RESULTS: At the first planned interim analysis (IA), the hazard ratio (HR) for EFS was 0.63 (95% CI, 0.45 to 0.87; P = .0052; statistical significance boundary = .0262) favoring the nivolumab plus chemotherapy arm; the median EFS was 31.6 months (95% CI, 30.2 to not reached) in the nivolumab plus chemotherapy arm versus 20.8 months (95% CI, 14.0 to 26.7) in the chemotherapy-only arm. At the time of a prespecified IA for overall survival (OS), 26% of patients had died, and the HR for OS was 0.57 (95% CI, 0.38 to 0.87; P = .0079; statistical significance boundary = .0033). Eighty-three percent of patients in the nivolumab-containing arm versus 75% in the chemotherapy-only arm received definitive surgery.

CONCLUSION: This approval, the first for any regimen for the neoadjuvant treatment of NSCLC in the United States, was supported by a statistically significant and clinically meaningful improvement in EFS with no evidence of detriment in OS or negative impact on patients’ receipt and timing of surgery or surgical outcomes.

PMID:37141544 | DOI:10.1200/JCO.22.02509

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Nevin Manimala Statistics

Mobile Integrated Health Care Roles of US EMS Clinicians: a Descriptive Cross-Sectional Study

Prehosp Emerg Care. 2023 May 4:1-10. doi: 10.1080/10903127.2023.2210219. Online ahead of print.

ABSTRACT

ObjectiveMobile integrated health care (MIH) leverages emergency medical services (EMS) clinicians to perform local health care functions. Little is known about the individual EMS clinicians working in this role. We sought to describe the prevalence, demographics, and training of EMS clinicians providing MIH in the United States (US).MethodsThis is a cross-sectional study of US-based, nationally certified civilian EMS clinicians who completed the National Registry of Emergency Medical Technicians (NREMT) recertification application during the 2021-2022 cycle and completed the voluntary workforce survey. Workforce survey respondents self-identified their job roles within EMS, including MIH. If an MIH role was selected, additional questions clarified the primary role in EMS, type of MIH provided, and hours of MIH training received. We merged the workforce survey responses with the individual’s NREMT recertification demographic profile. The prevalence of EMS clinicians with MIH roles and data on demographics, clinical care provided, and MIH training were calculated using descriptive statistics, including proportions with associated binomial 95% confidence intervals (CI).ResultsOf 38,960 survey responses, 33,335 met inclusion criteria and 490 (1.5%; 95%CI 1.3-1.6%) EMS clinicians indicated MIH roles. Of these, 62.0% (95%CI 57.7-66.3%) provided MIH as their primary EMS role. EMS clinicians with MIH roles were present in all 50 states and certification levels included emergency medical technician (EMT) (42.8%; 95%CI 38.5-47.2%), advanced emergency medical technician (AEMT) (3.5%; 95%CI 1.9-5.1%), and paramedic (53.7%; 95%CI 49.3-58.1%). Over one-third (38.6%; 95%CI 34.3-42.9%) of EMS clinicians with MIH roles received bachelor’s degrees or above, and 48.4% (95%CI 43.9%-52.8%) had been in their MIH roles for less than 3 years. Nearly half (45.6%; 95%CI 39.8-51.6%) of all EMS clinicians with primary MIH roles received less than 50 hours of MIH training; only one-third (30.0%; 95%CI 24.7-35.6%) received more than 100 hours of training.ConclusionFew nationally certified US EMS clinicians perform MIH roles. Only half of MIH roles were performed by paramedics; EMT and AEMT clinicians performed a substantial proportion of MIH roles. The variability in certification and training suggest heterogeneity in preparation and performance of MIH roles among US EMS clinicians.

PMID:37141533 | DOI:10.1080/10903127.2023.2210219

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Coronavirus pandemic in the South Asia region: Health policy and economy trade-off

J Glob Health. 2023 May 5;13:06014. doi: 10.7189/jogh.13.06014.

ABSTRACT

BACKGROUND: The South Asian Association for Regional Cooperation (SAARC) covers Afghanistan, Bangladesh, Bhutan, India, Maldives, Nepal, Pakistan, and Sri Lanka. We conducted a comparative analysis of the trade-off between the health policies for the prevention of COVID-19 spread and the impact of these policies on the economies and livelihoods of the South Asia populations.

METHODS: We analyzed COVID-19 data on epidemiology, public health and health policy, health system capacity, and macroeconomic indicators from January 2020 to March 2021 to determine temporal trends by conducting joinpoint regression analysis using average weekly percent change (AWPC).

RESULTS: Bangladesh had the highest statistically significant AWPC for new COVID-19 cases (17.0; 95% CI = 7.7-27.1, P < 0.001), followed by the Maldives (12.9; 95% CI = 5.3-21.0, P < 0.001) and India (10.0; 95% CI = 8.4-11.5, P < 0.001). The AWPC for COVID-19 deaths was significant for India (6.5; 95% CI = 4.3-8.9, P < 0.001) and Bangladesh (6.1; 95% CI = 3.7-8.5, P < 0.001). Nepal (55.79%), and India (34.91%) had the second- and third-highest increase in unemployment, while Afghanistan (6.83%) and Pakistan (16.83%) had the lowest. The rate of change of real GDP had the highest decrease for Maldives (557.51%), and India (297.03%); Pakistan (46.46%) and Bangladesh (70.80%), however, had the lowest decrease. The government response stringency index for Pakistan had a see-saw pattern with a sharp decline followed by an increase in the government health policy restrictions that approximated the test-positivity trend.

CONCLUSIONS: Unlike developed economies, the South Asian developing countries experienced a trade-off between health policy and their economies during the COVID-19 pandemic. South Asian countries (Nepal and India), with extended periods of lockdowns and a mismatch between temporal trends of government response stringency index and the test-positivity or disease incidence, had higher adverse economic effects, unemployment, and burden of COVID-19. Pakistan demonstrated targeted lockdowns with a rapid see-saw pattern of government health policy response that approximated the test-positivity trend and resulted in lesser adverse economic effects, unemployment, and burden of COVID-19.

PMID:37141526 | DOI:10.7189/jogh.13.06014

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Medical rehabilitation of patients with spinal muscular atrophy

Vopr Kurortol Fizioter Lech Fiz Kult. 2023;100(2):5-13. doi: 10.17116/kurort20231000215.

ABSTRACT

Rehabilitation of patients with spinal muscular atrophy (SMA) is a long-term strategy of healthcare service of Russian Federation, which is aimed at slowing down the progression of the pathological process, maximal reduction of disability and improving patients’ quality of life. The development of targeted programs of medical rehabilitation for patients with SMA, aimed at the reduction of the disease’s main symptoms, is relevant.

OBJECTIVE: To develop and scientifically establish therapeutic effects of complex medical rehabilitation of type II and III SMA patients.

MATERIAL AND METHODS: A prospective comparative study of the therapeutic effects of rehabilitation techniques, including 50 patients aged from 1.3 to 15.3 (average age 7.2±2.4 years) with type II and III SMA (ICD-10: G12), was done. Examined set included 32 patients with type II SMA and 18 patients with type III SMA. In patients of both groups had targeted rehabilitation programs (kinesiotherapy, mechanotherapy, splinting, use of spinal support, electric neurostimulation). Status of patients was determined by functional, instrumental and sociomedical research methods, the results of which were adequate statistically analyzed.

RESULTS: The comprehensive medical rehabilitation of patients with SMA demonstrated significant therapeutic effects with such manifestations as improvement of clinical status, stabilization and increase in joint motion, improvement of motor function of limbs’ muscles, head and neck. Medical rehabilitation reduces the degree of disability, increases rehabilitation potential and the need for the technical means of rehabilitation in patients with type II and III SMA. Rehabilitation techniques help to achieve the main aim of rehabilitation – independence in daily living – for 15% of patients with type II SMA and for 22% of patients with type III SMA.

CONCLUSION: Medical rehabilitation of patients with type II and III SMA forms significant locomotor-corrective and vertebral-corrective therapeutic effects.

PMID:37141517 | DOI:10.17116/kurort20231000215

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A snapshot of Australian primary health care nursing workforce characteristics and reasons they work in these settings: A longitudinal retrospective study

Nurs Open. 2023 May 4. doi: 10.1002/nop2.1785. Online ahead of print.

ABSTRACT

AIM: This article aimed to provide a snapshot of demographics and professional characteristics of nursing and midwifery workforce in Australian primary health care (PHC) settings during 2015-2019 and factors that influenced their decisions to work in PHC.

DESIGN: Longitudinal retrospective survey.

METHODS: Longitudinal data that were collected from a descriptive workforce survey were retrieved retrospectively. After collation and cleaning, data from 7066 participants were analysed using descriptive and inferential statistics in SPSS version 27.0.

RESULTS: The majority of the participants were female, aged between 45 and 64 years old and working in general practice. There was a small yet steady increase in the number of participants in the 25-34 age group and a downward trend in the percentage of postgraduate study completion among participants. While factors perceived most/least important to their decision to work in PHC were consistent during 2015-2019, these factors differed among different age groups and postgraduate qualification holders. This study’s findings are both novel and supported by previous research. It is necessary to tailor recruitment and retention strategies to nurses/midwives’ age groups and qualifications to attract and retain highly skilled and qualified nursing and midwifery workforce in PHC settings.

PMID:37141515 | DOI:10.1002/nop2.1785