scholarly journals Chi-squared test for planetary orbits after the impact of a single flyby and multiple stellar flybys

2021 ◽  
Author(s):  
J. J. Jiménez-Torres
Keyword(s):  
Planetary Orbits ◽  
Chi Squared ◽  
The Impact

scholarly journals Characteristics of visits and predictors of admission from a paediatric emergency room in Saudi Arabia

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Mohammad H. Al-Qahtani ◽  
Abdullah A. Yousef ◽  
Bassam H. Awary ◽  
Waleed H. Albuali ◽  
Mohammed A. Al Ghamdi ◽  
...  
Keyword(s):  
Saudi Arabia ◽  
Hospital Admission ◽  
Hospital Admissions ◽  
Binary Logistic Regression ◽  
Total Sample ◽  
Age Group ◽  
Chi Squared ◽  
Improper Use ◽  
Level Shifts ◽  
The Impact

Abstract Background The Emergency Repartment (ER) is one of the most used areas in healthcare institutions. Problems with over utilisation and overcrowding have been reported worldwide. This study aims at examining the characteristics of paediatric ER visits, the rate of hospital admissions and its associated predictors at King Fahd Hospital of the University in the Eastern Province of Saudi Arabia. Methods This is a retrospective, medical record-based study. Variables included gender, age group, nationality, complaints, Triage level, shifts and seasons. Descriptive statistics were reported as frequencies/percentages. P-values were obtained through a Chi-Squared test while unadjusted and adjusted odds ratios were estimated by binary logistic regression, where admission was considered as the outcome. Results The total number of paediatric patients included was 46,374, and only 2.5% were admitted. Males comprised 55.4% while females comprised 44.6%. The most common age group were toddlers, and 92.4% of the total sample were Saudis. The most common complaint was fever (26.9%) followed by respiratory symptoms (24.9%). Only 7 patients (0.02%) were classified as triage I (Resuscitation), and most were triage IV (Less urgent) (71.0%). Most visits occurred during the winter months. Adjusted ORs showed that neonates had higher odds of admission (OR = 3.85, 95%CI = 2.57–5.76). Moreover, those presenting with haematological conditions showed an OR of 65.49 (95%CI = 47.85–89.64), followed by endocrine conditions showing an OR of 34.89 (95%CI = 23.65–51.47). Triage I had a very high odds of admission (OR = 19.02, 95%CI = 2.70–133.76), whereas triage V was associated with a very low odds of admission (OR = 0.30, 95%CI = 0.23–0.38). Conclusions A low rate of hospital admission was found in comparison with other rates worldwide. This was mostly attributed to an alarmingly high number of non-urgent ER visits. This further emphasises the problem with improper use of ER services, as these cases should be more appropriately directed towards primary healthcare centres. Further studies to examine the impact of prioritising patients in the ER based on the identified predictors of hospital admission, in addition to the standard triage system, are suggested.

scholarly journals An Investigation of Soundscape Factors Influencing Perceptions of Square Dancing in Urban Streets: A Case Study in a County Level City in China

2019 ◽  
Vol 16 (5) ◽  
pp. 840 ◽  
Author(s):  
Jieling Xiao ◽  
Andrew Hilton
Keyword(s):  
Daily Basis ◽  
County Level ◽  
Urban Streets ◽  
Site Survey ◽  
Chi Squared ◽  
Related Group ◽  
Physical Features ◽  
The Impact ◽  
The City

Square dancing is a popular music-related group physical exercise for health benefits in China mainly participated by mid-aged women and elderly people. This paper investigates the soundscape and enjoyment of the square dancing in urban streets through a case study in Lichuan, a county level city in southwest China, in December 2017. It examines the impact of gender, age, participation and places on perceptions of square dancing soundscape. Two sites along two main urban streets in the city were selected to conduct onsite investigations where residents spontaneously perform square dancing on a daily basis. Ethnographical observations were conducted to identify the social-physical features and sounds of both sites during the dance and without dance. Sound pressure measurements (LAeq and LAmax) were also conducted under the two conditions. An off-site survey was distributed through the local social media groups to understand residents’ everyday experiences and perceptions of square dancing in the city; 106 responses were received for the off-site survey. T-tests and Chi-squared tests were used for statistical analysis of the survey data. The results show gender does appear to be a factor influencing the regularity of participation in square dancing, with a bias towards more female participants. Participation frequency of square dance has an impact on the enjoyment of square dancing. There is no correlation between the dislike of watching square dancing, or dislike of the music and a desire to restrict locations for square dancing.

scholarly journals P078 Oral Appliance Fabrication Settings Impact Treatment Efficacy

2021 ◽  
Vol 2 (Supplement_1) ◽  
pp. A46-A46
Author(s):  
D Levendowski ◽  
E Sall ◽  
W Odom ◽  
B Beine ◽  
D Cruz Arista ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Sleep Apnea ◽  
Treatment Outcomes ◽  
Body Mass ◽  
Treatment Efficacy ◽  
Oral Appliance ◽  
Chi Squared ◽  
Pre Treatment ◽  
The Impact

Abstract Purpose Assess the impact of custom oral appliance (CA) fabrication settings on treatment outcomes. Methods CPAP-intolerant patients completed a two-night home-sleep-apnea study (HSAT); Night1=baseline, Night2=Apnea Guard® trial appliance (AG). The AG vertical-dimension-of-occlusion (VDO) selection was based on tongue-scallop (women=5.5/6.5 mm, men= 6.5/8.0 mm), with a target protrusion of 70% from neutral-maximum while in situ. Study1 CA VDO was dependent on sex (women=2.5 mm, men=5 mm), with protrusion set using a George-Gauge measured 70% from maximum retrusion-protrusion with dentist-directed titration. Study2 CA was fabricated to the AG VDO and target protrusion bite-registration. Efficacy HSATs were conducted after completion of Study1 CA titration with vertical-elastics optional, and at the AG target protrusion with vertical-elastics mandatory in Study2. Statistics included Mann-Whitney, Chi-squared, and Bland-Altman analyses. Results The Study1 (n=84) and Study2 (n=46) distributions were equivalent for tongue-scallop (64/63%) and sex (women=45/41%), however, noted differences in age (53.8±11.9 vs. 58.4±12.2; P=0.052), body-mass-index (29.4±5.7 vs. 27.8±4.0; P=0.128) and pre-treatment AHI severities (24.6±14.4 vs. 29.2±17.4 events/h; P=0.155) were observed. The Bland-Altman biases were significant different (Study1=4.2±7.8 vs. Study2=1.3±7.0 events/h, P=0.035). The significant Study1 differences between the CA vs. AG AHIs (12.3±9.2 vs. 8.2±5.9 events/h, P<0.0002) were not apparent in Study2 (11.7±8.0 vs. 10.4±6.7 events/h, P=0.362), however, the Study2 AG AHI values were higher (P=0.055). Discussion Despite the trend toward greater Study2 pre-treatment and AG AHI severities, CA treatment efficacy was equivalent to the AG once VMO was controlled and fabricated using the AG VDO and protrusion bite-registration. These findings confirmed CA fabrication settings impact treatment outcomes.

scholarly journals Understanding the impact of the COVID-19 pandemic on a socially deprived UK coastal town: a preliminary exploratory analysis of health and socioeconomic data

2021 ◽  
Author(s):  
Maddy French ◽  
Mark Spencer ◽  
Mike Walker ◽  
Afzal Patel ◽  
Neil Clarke ◽  
...  
Keyword(s):  
Primary Care ◽  
Hospital Admissions ◽  
Exploratory Analysis ◽  
Social Outcomes ◽  
Socioeconomic Outcomes ◽  
Chi Squared ◽  
Service Activity ◽  
Indirect Impacts ◽  
The Uk ◽  
The Impact

Introduction In addition to the direct impact of COVID-19 infections on health and mortality, a growing body of literature indicates there are wide-ranging indirect impacts of the COVID-19 pandemic and associated public health measures on population health and wellbeing. Exploring these indirect impacts in the context of a socially deprived UK coastal town will help identify priority areas to focus COVID-19 recovery efforts on. Methods Data on primary care diagnosis, hospital admissions, and several socioeconomic outcomes between 2016 and Spring 2021 in the UK town of Fleetwood were collected and analysed in an exploratory analysis looking at pre- and post- COVID-19 patterns in health and social outcomes. Weekly and monthly trends were plotted by time and differences between periods examined using Chi-squared and t-tests. Results Initial falls in hospital admissions and diagnoses of conditions in primary care in March 2020 were followed by sustained changes to health service activity for specific diagnostic and demographic groups, including for chronic kidney disease and young people. Increases in the number of people receiving Universal Credit and children eligible for free school meals appear to be greater for those in the least deprived areas of the town. Discussion These exploratory findings provide initial evidence of the sustained impact of the pandemic across several health and social outcomes. Examining these trends in multivariate analyses will further test these associations and establish the strength of the medium term impact of the pandemic on the population of this coastal town. Advanced modelling of this data is ongoing and will be published shortly.

scholarly journals Tuberculosis in Saudi Arabia: Prevalence between Saudis and Non-Saudis from 2013 to 2018 with a special concern about regions of the KSA

2019 ◽  
Vol 4 (6) ◽  
Keyword(s):  
Saudi Arabia ◽  
Migrant Workers ◽  
Action Plan ◽  
Age Groups ◽  
Incidence Rates ◽  
Arab Countries ◽  
Surveillance Data ◽  
Significance Level ◽  
Chi Squared ◽  
The Impact

The Kingdom of Saudi Arabia is one of the largest Arab countries with a moderate annual problem of tuberculosis that is either pulmonary or extra-pulmonary. TB is still one of the most significant health troubles in the KSA, affecting different nationalities (Saudis, non-Saudis), ages, provinces, and genders. The control of TB still faces some challenges in different provinces of the KSA. Data were collected, arranged, analyzed and presented in tables and figures. In this retrospective study, we appraised TB surveillance data for the period between 2013 (1434H) and 2018 (1439H). Data were handled using Microsoft Excel and SPSS version 23. Data were checked for normality using Shapiro-Wilk normality test at 0.05 levels to determine whether they are parametric or nonparametric. Chi-squared, Kruskal Wallis, and analysis of variance tests were used to evaluate trends at a significance level of p< 0.05. Statistical analyses were performed using IBM-SPSS version 23 for Mac OS. We appraised TB surveillance data for the period between 2013 (1434H) and 2018 (1439H). The data included the region of the country (province), age, sex, and nationality (Saudis, non-Saudis). The study evaluated the impact of TB on various nationalities (Saudis and non-Saudis), age groups (0-14, 15-34, 35-55, more than 55 years old), and genders (males and females). Non-Saudis had a higher incidence rate than Saudis in 2013-2018. The number of cases and incidence rates of TB recorded in males between 2013 to 2018 were about two to three times greater than estimates for females. The Makkah, Riyadh, and Jeddah regions attract enormous numbers of non-Saudi migrant workers, who account for ~60% of all TB cases in the KSA. Assessing the main TB risk factors contributing to high TB rates in non-Saudi workers is essential. Furthermore, periodical accurate studies, including evidence-based studies for optimum surveillance, avoidance, spread risk, inspection, control procedures and treatment of TB, should be conducted. These assessments would lead to evaluating the strengths and weaknesses of KSA-NTP’s TB action plan.

Abstract TMP86: Telestroke Improves Guideline-Based Comprehensive Stroke Care: The TELECAST Trial

Stroke ◽  
2020 ◽  
Vol 51 (Suppl_1) ◽  
Author(s):  
Christopher D Streib ◽  
Oladi Bentho ◽  
Kathryn Bard ◽  
Eric Jaton ◽  
Sarah Engkjer ◽  
...  
Keyword(s):  
Acute Stroke ◽  
Stroke Care ◽  
Composite Score ◽  
Stroke Recurrence ◽  
Acute Stroke Care ◽  
Specialist Service ◽  
Stroke Treatment ◽  
Chi Squared ◽  
Secondary Outcomes ◽  
The Impact

Introduction: Limited access to stroke specialist expertise produces disparities in inpatient stroke treatment. The impact of telestroke on the remote delivery of guideline-based inpatient stroke care is yet to be comprehensively studied. The TELECAST trial (NCT03672890) prospectively examined the impact of a 24-7 telestroke specialist service dedicated to inpatient acute stroke care spanning admission to discharge. Methods: AHA stroke guidelines were used to derive outcome metrics in the following acute stroke inpatient care categories: diagnostic stroke evaluation (DSE), secondary stroke prevention (SSP), health screening and evaluation (HSE), and stroke education (SE). Adherence to AHA guidelines for stroke inpatients pre-telestroke (July 1, 2016-June 30, 2018) and post-telestroke intervention (July 1, 2018-June 30, 2019) were studied. The primary outcome was a composite score of all guideline-based stroke care. Secondary outcomes consisted of subcategory composite scores in DSE, SSP, HSE, and SE. Chi-squared tests were utilized to assess primary and secondary outcomes. Statistical analysis was performed using STATA 15.0. Results: Following institution of a comprehensive inpatient telestroke service, overall adherence to guideline-based metrics improved (composite score: 85% vs 94%, p<0.01) as did adherence to DSE guidelines (subgroup score: 90 vs 95%, p<0.01). SSP, HSE, and SE subgroup scores were not significantly different. See Table 1. Conclusion: The implementation of a 24-7 inpatient telestroke service improved adherence to AHA guidelines for inpatient acute stroke care. Dedicated inpatient telestroke specialist coverage may improve inpatient stroke care and reduce stroke recurrence in hospitals without access to stroke specialists.

Abstract WMP89: Stroke Code De-escalation: Safety and Outcomes

Stroke ◽  
2017 ◽  
Vol 48 (suppl_1) ◽  
Author(s):  
Jessica Jarnot ◽  
Christopher Streib ◽  
Angela Heyer ◽  
Amy Reichert ◽  
David Anderson ◽  
...  
Keyword(s):  
Chart Review ◽  
Healthcare Providers ◽  
Retrospective Chart Review ◽  
Before And After ◽  
Chi Squared ◽  
Cost Implications ◽  
The Impact ◽  
Timely Treatment ◽  
Iv Tpa ◽  
Missed Opportunity

Introduction: “Stroke codes” (SCs) facilitate the timely treatment of acute ischemic stroke (AIS) with IV tPA or intra-arterial thrombectomy (IAT), but are inherently resource-intensive and can expose patients to unnecessary and potentially harmful interventions. While all healthcare providers are encouraged to activate SCs, this might lead to low SC-to-treatment-ratios (SCTR). We examined the impact of de-escalation of stroke codes (DSCs) on SCTR. Methods: DSCs were initiated in our institution in January 2015. All DSCs were reviewed for the patient’s eligibility for IV tPA or IAT, and reason for de-escalation. We reviewed all stroke codes 12 months before and after the initiation of this process and compared the SCTR by chi-squared testing. Results: In 2014, prior to DSCs, 253 SCs resulted in 22 AIS interventions (22 IV tPA) for a SCTR of 8.7%. In 2015, 348 SCs were activated with 64 subsequent DSCs (18.4%) and 45 AIS interventions (38 IV tPA, 7 IAT, 7 both), for a SCTR of 15.8%. The improvement in SCTR after introducing DSCs was statistically significant (p=0.012). When restricting the analysis to IV tPA interventions alone, there remained a trend (p=0.068) towards improvement in SCTR. Retrospective chart review did not reveal any DSC cases that resulted in missed opportunity for IV TPA or IAT treatment. No DSCs were due to an acute ICH. Justifications for de-escalations are summarized in figure 1. Conclusions: The introduction of DSCs resulted in a statistically significant absolute improvement in SCTR of 7.1%. Importantly, DSCs did not result in any eligible AIS patient forgoing IV tPA or IAT, nor missed ICH. More research is needed to increase the yield of stroke codes, refine the criteria for both activating and de-escalating them, and quantify the resource and cost implications of such de-escalations.

597 Opioid-limiting Mandate Did Not Increase Readmissions for a Single Burn Center

2020 ◽  
Vol 41 (Supplement_1) ◽  
pp. S141-S142
Author(s):  
Kamil Nurczyk ◽  
Sanja Sljivic ◽  
Kaylyn Pogson ◽  
Lori Chrisco ◽  
Rabia Nizamani ◽  
...  
Keyword(s):  
Graft Failure ◽  
Discharge Planning ◽  
Wound Care ◽  
Tertiary Care ◽  
Prescription Opioid ◽  
Opioid Misuse ◽  
Burn Center ◽  
Chi Squared ◽  
Prescription Opioid Misuse ◽  
The Impact

Abstract Introduction Our state’s Strengthen Opioid Misuse Prevention (“STOP”) Act was enacted on January 1 st 2018 to reduce prescription opioid misuse. We sought to evaluate the impact of opioid-limiting legislation on readmission rates among burn patients to our tertiary care burn center related to uncontrolled pain. Methods Patients were identified using an institutional Burn Center registry and linked to clinical and administrative data. All patients admitted between July 1 st, 2014 to June 20 th, 2019 were eligible for inclusion. Injury mechanism categories and reasons for readmissions were evaluated. Statistical analysis was carried out using chi-squared test and significance was accepted as p&lt; 0.05. Results Of the 7872 total admissions, 160 (2%) were readmissions. Mean number of readmissions for every year was 32. There was an increase in number of readmissions in 2018 observed but it was not statistically significant (2014 n=12, 2015 n=35, 2016 n=21, 2017 n=33, 2018 n=40, 2019 n=19). The reasons for readmission included wound progression, graft failure, infection, and pain. There was an increase in readmissions for infection, wound progression and graft failure after January 2018, p&lt; 0.05. The percentage of patients readmitted for pain increased between 2014 to 2019 but it was not statistically significant. Conclusions The primary reasons for readmissions to our burn center were pain, infection, graft failure, and progression of disease. Despite the opioid-limiting law there was not an increase in readmissions related to pain. Applicability of Research to Practice This study demonstrates that our current discharge planning strategies are managing pain expectations for patients. Our focus should be shifted towards improving infection control and wound care.

Readmissions After Lobectomy in an Era of Increasing Minimally Invasive Surgery: A Statewide Analysis

2019 ◽  
Vol 14 (5) ◽  
pp. 453-462
Author(s):  
Brandon S. Hendriksen ◽  
Michael F. Reed ◽  
Matthew D. Taylor ◽  
Christopher S. Hollenbeak
Keyword(s):  
Minimally Invasive ◽  
Surgical Approach ◽  
Health Care Cost ◽  
Thoracoscopic Surgery ◽  
Patient Characteristics ◽  
Open Approach ◽  
Minimally Invasive Surgical ◽  
Chi Squared ◽  
The Impact ◽  
Video Assisted Thoracoscopic Surgery

Objective Utilization of minimally invasive surgical modalities for lobectomy is increasing. Lobectomy can be associated with notable rates of readmission. As use of these modalities increases, evaluation of the impact on readmission is warranted. Methods Data from the Pennsylvania Health Care Cost Containment Council were used to identify lobectomy operations performed in Pennsylvania from 2011 through 2014. Operations were stratified by approach: open, video-assisted thoracoscopic surgery (VATS) or robotic. Differences in patient characteristics were assessed with analysis of variance and chi-squared tests. Logistic regression modeled risk of 30-day readmission and linear regression modeled length of stay (LOS) after controlling for confounders. Results We evaluated 4,939 lobectomy operations (2,501 open, 1,944 VATS, 494 robotic) with 583 readmissions (11.8%). Robotic cases increased 333% over 4 years. VATS and open cases increased 38% and 22%, respectively. Surgical approach was not associated with hospital readmission (VATS odds ratio (OR) = 0.95; P = 0.632; and robotic OR = 1.02; P = 0.916). Longer LOS was associated with a greater likelihood of readmission (OR = 1.58; P = 0.002). LOS was 1 day less for VATS ( P < 0.001) and 1.5 days less for robotic lobectomy ( P < 0.001) when compared to an open approach. The most common reasons for readmission were respiratory complications and nonrespiratory infection. Conclusions Surgical approach does not directly affect readmission. However, minimally invasive lobectomy appears to be associated with shorter LOS and results in more patients discharged home. Decreased LOS and discharge home are associated with fewer readmissions.

scholarly journals PCR Cycle-Threshold-Derived Toxin Identifies Patients at Low-Risk for Complications of C. difficile Infection Who Do Not Require Treatment

2017 ◽  
Vol 4 (suppl_1) ◽  
pp. S395-S395 ◽  
Author(s):  
Matthew Hitchcock ◽  
Marisa Holubar ◽  
Lucy Tompkins ◽  
Niaz Banaei
Keyword(s):  
Treated Patient ◽  
Retrospective Chart Review ◽  
Patient Characteristics ◽  
Low Risk ◽  
Review Time ◽  
Cycle Threshold ◽  
Crude Mortality ◽  
Chi Squared ◽  
High Negative Predictive Value ◽  
The Impact

Abstract Background Literature suggests that toxin detection differentiates those who require treatment for C. difficile infection (CDI) from those who do not. In-house studies have shown that free toxin can be predicted with high negative predictive value at a predefined cycle threshold (CT) using Xpert tcdB PCR (Cepheid, Sunnyvale, CA). In October 2016, CT-toxin was added to the PCR result and a comment recommends against CDI therapy if CT-toxin is negative (CTtox-). Here we evaluate the effect of this reporting on treatment rates and outcomes of CTtox- patients. Methods Patients tested from October 2016 to Apr. 2017 with a positive Xpert PCR and CTtox- result were included. Clinical data were collected by retrospective chart review and analyzed with the Chi squared and Student t-tests using SPSS. Due to multiple comparisons, α=0.01. Results Of 1516 Xpert PCR tests, 248 (16.4%) were positive and 98 (39.5%) were CTtox-. Of these, 54 (55.7%) were treated. Patient characteristics and data at testing are shown below. There were no cases of CDI-related septic shock or toxic megacolon on review. Time to diarrhea resolution was significantly shorter in untreated patients and there was no difference in crude mortality or later onset of CTtox+ CDI. Conclusion This study demonstrates the impact of stand-alone PCR assay with toxin prediction on reducing CDI therapy rates and provides further evidence that PCR+/toxin- patients are at low risk for CDI-related complications and do not require treatment, though more data is needed in transplant populations. Disclosures N. Banaei, Cepheid: Collaborator, Research Contractor and Scientific Advisor, honorarium for advisory role and Research support

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