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Nevin Manimala Statistics

The statistical literacy of “my” patient

G Ital Cardiol (Rome). 2023 Aug;23(8):597-603. doi: 10.1714/4068.40527.

ABSTRACT

The fundamental questions asked by the patient to the doctor are: “What is the best cure for my disease?”; “How likely am I to benefit from the intervention you propose?”. To answer on a scientific basis, the doctor can use seven parameters: 1) the relative reduction of the risk; 2) its absolute reduction; 3) the necessary number of patients to be treated to obtain a benefit; 4) the number of patients to be treated to avoid an adverse event; 5) average life time gained; 6) average life time gained in good health; 7) the residual risk.The doctor, not a statistician or scientist, must explain to the patient the reason for his proposals, to pass from consent to sharing; this requires strong commitment and cultural growth of both the patient and the doctor. To avoid purely declamatory positions, it is necessary to adopt some tools such as the scientific method and risk management but above all statistics. If medicine has been defined as “the science of uncertainty and the art of probability”, statistics is the science of probability and the art of uncertainty, that physicians and patients cannot do without to share their important decisions in the field of health.

PMID:37492866 | DOI:10.1714/4068.40527

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Nevin Manimala Statistics

Effects of Senility on Disease Burden: Panel Analysis Using 2010 to 2019 OECD Health Data

Health Serv Insights. 2023 Jul 20;16:11786329231188286. doi: 10.1177/11786329231188286. eCollection 2023.

ABSTRACT

BACKGROUND: In this study, the geniatric status of OECD (Organisation for Economic Co-operation and Development) countries was measured, and the effects of aging status on disease patterns in each country were quantitatively assessed. A theoretical model explaining the effects was suggested, and the implications were discussed.

METHODS: Data used in this study were the OECD Health Statistics data and WHO Global Burden of Disease data. The values for each country were paired with disability-adjusted life years (DALYs) presented by the WHO and Institute for Health Metrics and Evaluation (IHME). A cross-country panel analysis was conducted to analyze the effects of senility on the burden of disease in OECD countries.

RESULTS: Geniatric status had effects on the burden of disease (P = .048). Total health expenditure significantly reduced the burden of disease (P = .001). In the panel model with YLL (Year of Life Lost) as the outcome variable, geniatric status had twice greater effects on the burden of disease than that in the model with DALY (P = .003).

CONCLUSIONS: In medical insurance-related policies, the characteristics of the disease should be considered. In particular, chronic diseases have not received much attention compared to their risk. However, the disease that actually affects the burden of disease is a disease that becomes chronic and requires long-term treatment rather than a disease with a high fatality rate. And, as a result of this study, the higher the level of resource consumption for treatment in OECD countries, where aging is progressing, the burden of disease was rather reduced. Therefore, if there is institutional support to receive appropriate treatment, it will be possible to reduce the national burden of disease.

PMID:37492858 | PMC:PMC10363890 | DOI:10.1177/11786329231188286

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Nevin Manimala Statistics

Sero- and Feco-Prevalence of Helicobacter pylori Infection and Its Associated Risk Factors among Adult Dyspeptic Patients Visiting the Outpatient Department of Adet Primary Hospital, Yilmana Densa District, Northwest Ethiopia

Can J Infect Dis Med Microbiol. 2023 Jul 17;2023:2305681. doi: 10.1155/2023/2305681. eCollection 2023.

ABSTRACT

BACKGROUND: Most gastric cancers in the world are attributed to Helicobacter pylori (H. pylori) infections. The prevalence of H. pylori infection is influenced by socioeconomic status, hygiene, and lifestyle of the population. This study aimed to assess sero- and feco-prevalence of H. pylori infections and its associated risk factors among adult dyspeptic patients visiting the outpatient department of Adet Primary Hospital, Yilmana Densa District, northwest Ethiopia.

METHODS: A hospital-based cross-sectional study was conducted from February 10, 2022 to April 10, 2022. The study participants were selected using a systematic random sampling technique. The data were collected by pretested questionnaires. Blood and stool specimens were collected from each patient for antibody and H. pylori antigen tests, respectively. The data were analyzed using Statistical Package for Social Science (SPSS) version 26.0. A logistic regression model was used to assess the strength of association between H. pylori positivity and risk factors.

RESULTS: The sero- and feco-prevalence of H. pylori infection was 62% and 51.1%, respectively. In those patients who had a positive result with either the antibody (Ab) or antigen (Ag) test, rural residence (AOR = 5.55; 95% CI: 2.34-13.14; p < 0.001), alcohol consumption (AOR = 12.34; 95% CI: 2.29-66.51; p=0.003), having no awareness about H. pylori transmission (AOR = 4.76; 95% CI: 1.86-12.15; p=0.001), using pond/river as a source of drinking water (AOR = 5.22; 95% CI: 1.91-14.27; p=0.001), and open field defecation (AOR = 4.19; 95% CI: 1.67-10.52; p=0.002) were the explanatory risk factors significantly associated with H. pylori infection.

CONCLUSION: This study showed that the prevalence of H. pylori infection was very high. Most cases of gastric cancers are ascribed to H. pylori infection. Therefore, education should be given to communities so as to increase their awareness of the infection and the associated major explanatory risk factors identified in the present study.

PMID:37492856 | PMC:PMC10365919 | DOI:10.1155/2023/2305681

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Nevin Manimala Statistics

Role of Different Low-Density Lipoprotein-Lowering Medications on Secondary Prevention of Atherosclerotic Cardiovascular Disease in Patients With Diabetes Mellitus

Cureus. 2023 Jun 24;15(6):e40905. doi: 10.7759/cureus.40905. eCollection 2023 Jun.

ABSTRACT

Purpose The objective of this study was to explore the optimal cholesterol-lowering therapy for diabetic patients categorized as having a very high risk for future atherosclerotic cardiovascular disease (ASCVD) events. The primary medications under investigation were statins, ezetimibe, and proprotein convertase subtilisin-kexin type 9 (PCSK9) inhibitors (PCSK9-Is). The efficacy of different medication regimens helped to draw conclusions regarding the evolution of cholesterol management recommended under the American College of Cardiology’s (ACC) 2013 and 2018 guidelines. Methods A retrospective chart review was conducted on a cohort of patients from a large, community-based cardiology practice. Inclusion criteria specified patients aged 30-82 with a past medical history of two or more ASCVD events or one ASCVD event and at least two high-risk comorbidities. Acquired data included demographics, all lipid panels, medications used, and ASCVD events between December 1, 2013, and December 31, 2019. The data were stored and encrypted on a REDCap account. Sub-group analysis was conducted on only diabetic patients, who were then categorized by medication regimen. The statistical analysis was completed using Fisher’s exact test. A p-value <0.05 was considered significant. Results A total of 102 diabetic patients met the inclusion criteria. Our primary analysis determined the percentage of patients who achieved their goals on each medication regimen. The goal was defined as a low-density lipoprotein cholesterol (LDL-C) level of less than 70 mg/dL or at least a 50% reduction from baseline levels. The results are as follows: none (0%), statin (33.9%), ezetimibe (21.1%), statin + ezetimibe (73.5%), PCSK9-Is ± statin (83.3%), and PCSK9-Is and ezetimibe ± statin (100%). There proved to be a significant difference favoring all combination regimens over statins alone; however, there was no significant difference between these advanced regimens. A follow-up analysis determined if these patients were able to maintain their goals in the subsequent lipid panel after achieving their goals. The results are as follows: none (0%), statin (61.5%), ezetimibe (50%), statin + ezetimibe (77.8%), PCSK9-Is ± statin (100%), and PCSK9-Is and ezetimibe ± statin (66.6%). The only significant difference found was between PCSK9-Is ± statins and statins alone. Conclusions Our study revealed that regimens using PCSK9 inhibitors and ezetimibe, in addition to maximally tolerated statin therapy, were more effective than statin therapy alone in achieving the goal. On extended analysis, only PCSK9 inhibitors showed superior ability in terms of maintaining the goals for diabetic patients at very high risk for future ASCVD events. This implies that statins alone may be inadequate to properly treat this specific patient population. In the context of clinical practice, physicians could have heightened consideration for dual therapy consisting of maximally tolerated statins and a secondary agent in accordance with the 2018 ACC guidelines.

PMID:37492827 | PMC:PMC10365890 | DOI:10.7759/cureus.40905

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Nevin Manimala Statistics

Role of Sensitization and Awareness Program on Knowledge, Attitude, Views, and Practice of Self-Medication Among MBBS Students in a Medical College of Bihar

Cureus. 2023 Jun 22;15(6):e40774. doi: 10.7759/cureus.40774. eCollection 2023 Jun.

ABSTRACT

Aims Self-medication is an essential component of self-care; however, its use has significantly increased. Its practice has many risks such as wrong diagnosis, adverse drug reactions, antimicrobial resistance, etc. Being future doctors, self-medication has a special impact on MBBS students. Henceforth, the present study was undertaken to sensitize MBBS students in a medical college in Bihar and to analyze its role in different aspects of self-medication. Methods and material This was a cross-sectional, questionnaire-based study. The questionnaire was circulated to MBBS students of all the phases. After collecting the responses, scoring and grading was done and then a sensitization and awareness program was conducted through different modes and medium. After three months the same questionnaire was distributed, and their response was again collected. Statistical analysis used With an expected 40% prevalence, the minimum sample size needed to attain a power of 95% and an alpha value of 0.05 was calculated to be 201. Statistical Package for Social Sciences version 16 was used for data analysis. The chi-square test was used to see the association in responses obtained, before and after sensitization. A P-value with ≤0.05 was considered statistically significant. Results The questionnaires were circulated among 439 students. On comparing the grades, we found that phase III students comparatively had better knowledge regarding different aspects of self-medication. On analyzing different aspects of self-medication, we found that there was a significant improvement in many aspects post-sensitization. Conclusions MBBS students are future doctors, hence they should be more educated about the pros and cons of self-medication. This study showed that the perception of participants improved after our educational activities. We hope that after becoming aware, these young budding doctors will spread awareness, which, in turn, will benefit society. Additionally, we hope that this study will have an impact on students from different medical colleges and even healthcare providers, promoting responsible self-medication practices when necessary.

PMID:37492819 | PMC:PMC10364848 | DOI:10.7759/cureus.40774

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Nevin Manimala Statistics

Single Serum Cortisol Value as a Prognostic Marker in Acute Ischemic Stroke

Cureus. 2023 Jun 24;15(6):e40887. doi: 10.7759/cureus.40887. eCollection 2023 Jun.

ABSTRACT

BACKGROUND: Stroke is a major global burden with significant morbidity, mortality, and long-term disability. Acute ischemic stroke (AIS) is a stressful condition causing stimulation of the hypothalamic-pituitary-adrenal (HPA) axis resulting in numerous endocrinal alterations in the body. We evaluated the serum cortisol as a prognostic marker in AIS.

METHODS: This was a prospective observational study comprising 100 cases suffering from AIS, and serum cortisol at the baseline was measured. Severity was evaluated using the National Institutes of Health Stroke Scale (NIHSS) during admission, and functional outcome was assessed at 1, 4, and 24 weeks using a modified Rankins score (mRS). Statistical analysis was performed to find the relationship between serum cortisol and the severity of stroke, outcome, and mortality at 1, 4, and 24 weeks of stroke.

RESULTS: In our study, we found positive correlations between random blood sugar and serum cortisol (r = 0.273, p = 0.006); stroke severity (NIHSS) and serum cortisol (r = 0.785, p < 0.001); stroke outcome (mRS) at 1, 4, and 24 weeks; and serum cortisol (p < 0.001 and r = 0.676, 0.654, 0.650 for all three intervals, respectively). We also found higher serum cortisol among patients who died at 1, 4, and 24 weeks compared to those who survived with a p-value being <0.001 for all three intervals.

CONCLUSIONS: A stress response causing an increase in serum cortisol occurs in AIS. This response is detrimental to the patient. The serum cortisol at baseline can be considered a marker of severity, short- and long-term prognosis, and mortality after AIS.

PMID:37492812 | PMC:PMC10364192 | DOI:10.7759/cureus.40887

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Nevin Manimala Statistics

Effectiveness of Application of Oral Regimen, Practicing Oral Health, Health Education, Observation (APHO) Nursing Intervention in Preventing and Managing Oral Mucositis in Children Undergoing Chemotherapy: An Interventional Study in Central India

Cureus. 2023 Jun 24;15(6):e40902. doi: 10.7759/cureus.40902. eCollection 2023 Jun.

ABSTRACT

Background The incidence of childhood cancer is rising worldwide, with acute lymphoblastic leukemia being the most commonly diagnosed form. These young patients are immunocompromised and susceptible to infections. In addition, chemotherapy and radiation therapy often cause oral mucositis as a side effect. Given these challenges, nurses play a crucial role in delivering special care to these vulnerable children. Material and methods A study design utilizing a one-group pretest-posttest approach was implemented on 45 children, aged one to 12 years, who were undergoing chemotherapy and experiencing oral mucositis. Demographic information, including age, gender, diagnosis, chemotherapy cycle, and length of therapy, was collected. A customized intervention, which involved the application of an oral regimen, oral health practices, health education for caregivers, and observation, was administered by nursing staff using the APHO (Application of an Oral Regimen, Practicing Oral Health, Health Education to Caregivers, and Observation) protocol for a period of seven days. Both pre-intervention and post-intervention assessments were conducted to determine the effectiveness of the APHO nursing intervention. The assessment tool used to assess the effectiveness of APHO intervention was using a standardized scale given by the World Health Organization grading scale for oral mucositis. Result An analysis was conducted utilizing both descriptive and inferential statistics. Before the intervention, those children in grade 2 were in grade 1 after the intervention, and the children in grade 1 before the intervention were in grade 0 after the intervention. The health education provided to the caregivers was significantly effective. Notably, there was a significant decrease in the oral mucositis grade of the children by one level in all instances, indicating that the APHO nursing intervention was remarkably effective. Thus, promoting the use of APHO nursing intervention can lead to positive outcomes in children afflicted with oral mucositis. Conclusion APHO nursing intervention has shown remarkable effectiveness among children with mucositis. As a result, promoting continuous APHO intervention in children with mucositis can help enhance in prevention and management.

PMID:37492811 | PMC:PMC10365547 | DOI:10.7759/cureus.40902

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Nevin Manimala Statistics

Assessment of age-related change of the ocular support system

Front Bioeng Biotechnol. 2023 Jul 10;11:1146828. doi: 10.3389/fbioe.2023.1146828. eCollection 2023.

ABSTRACT

To estimate the material stiffness of the orbital soft tissue in human orbits using an inverse numerical analysis approach, which could be used in future studies to understand the behaviour under dynamic, non-contact tonometry or simulate various ophthalmological conditions. Clinical data were obtained for the left eye of 185 Chinese participants subjected to a complete ophthalmic examination, including tests by the Corvis ST and Pentacam. 185 numerical models of the eye globes were built with idealised geometry of the sclera while considering the corneal tomography measured by the Pentacam. The models were extended to include representations of the orbital soft tissue (OST), which were given idealised geometry. The movement of the whole eye in response to an air-puff directed at the central cornea was examined and used in an inverse analysis process to estimate the biomechanical stiffness parameters of the OST. The results indicated a weak correlation of E t with the progression of age, regardless of the stress at which E t was calculated. However, there was evidence of significant differences in E t between some of the age groups. There was statistical evidence of significant differences between E t in the age range 20< years < 43 relative to E t in OST with age ranges 43< years < 63 (p = 0.022) and 63< years < 91 (p = 0.011). In contrast, E t in OST with age ranges 43< years < 63 and 63< years < 91 were not significantly different (p = 0.863). The optimised mechanical properties of the OST were found to be almost four times stiffer than properties of fatty tissue of previous experimental work. This study consolidated previous findings of the role of extraocular muscles on the ocular suppor system. In addition, the rotation of the globe during corvis loading is suggested to be of posterior components of the globe and shall be further investigated.

PMID:37492801 | PMC:PMC10363727 | DOI:10.3389/fbioe.2023.1146828

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Nevin Manimala Statistics

Increased Incidence and Risk Factors of Infections by Extended-Spectrum β-Lactamase-Producing Enterobacterales During the COVID-19 Pandemic: A Retrospective Case-Control Study

Infect Drug Resist. 2023 Jul 20;16:4707-4716. doi: 10.2147/IDR.S421240. eCollection 2023.

ABSTRACT

PURPOSE: To investigate changes in the incidence of infections by extended-spectrum β-lactamase-producing Enterobacterales (ESBL-E) and analyzed whether there was an association between endogenous changes in the organism due to COVID-19 infection and the infections by ESBL-E.

PATIENTS AND METHODS: The study was a single-center retrospective case-control design. A total of 107 patients infected by ESBL-E during the COVID-19 pandemic were selected as the case group, while 214 uninfected patients selected by 1:2 propensity score matching (PSM) acted as the control group. Univariate analysis, LASSO logistic regression, and multivariate logistic regression were used to determine the risk factors for ESBL-E infection. An interrupted time series was used to analyze the changes in the incidence of ESBL-E infections in hospitalized patients during the COVID-19 pandemic.

RESULTS: The incidence of infection with ESBL-E showed a significant increase during COVID-19 (3.42 vs 4.92 per 1000 patients, p = 0.003). The incidence of ESBL-E infections increased at an average rate of 0.45 per 1000 patients per week compared to the pre-pandemic period (p = 0.022). Multivariate logistic regression analysis showed that a length of hospitalization ≥ 15 days (OR: 2.98 (1.07-8.28), chronic kidney disease (OR: 4.25 (1.32-13.70), white blood cell (WBC) > 9.5×10^9/L (OR: 3.04 (1.54-6.01), use of hormonal drugs (OR: 2.38 (1.04-5.43), antibacterial drug use 1 type (OR: 5.38 (2.04-14.21), antibacterial drug use 2 types (OR: 23.05 (6.71-79.25) and antibacterial drug use ≥ 3 types (OR: 88.35 (8.55-912.63) were independent risk factors for infection with ESBL-E, while chronic obstructive pulmonary disease (COPD) was a protective factor (OR: 0.14 (0.03-0.66). COVID-19 was not an independent risk factor for infection by ESBL-E.

CONCLUSION: During the COVID-19 pandemic, the incidence of infections by ESBL-E increased significantly. Increased exposure to traditional risk factors were the main reasons, however, COVID-19 was not an independent risk factor for ESBL-E infection.

PMID:37492798 | PMC:PMC10364815 | DOI:10.2147/IDR.S421240

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Nevin Manimala Statistics

Cytokine and chemokine map of peripheral specific immune cell subsets in Parkinson’s disease

NPJ Parkinsons Dis. 2023 Jul 25;9(1):117. doi: 10.1038/s41531-023-00559-0.

ABSTRACT

Peripheral immune cells play a vital role in the development of Parkinson’s disease (PD). However, their cytokine and chemokine secretion functions remain unclear. Therefore, we aimed to explore the cytokine and chemokine secretion functions of specific immune cell subtypes in drug-naïve patients with PD at different ages of onset. We included 10 early-onset and 10 late-onset patients with PD and age-matched healthy controls (HCs). We used mass cytometry to select specific immune cell subsets and evaluate intracellular cytokine and chemokine expression. Statistical tests included t-tests, analysis of variance, bivariate correlation analysis, and linear regression analysis. Compared with HCs, patients with PD exhibited significantly decreased intracellular pro-inflammatory cytokines and chemokines in selected clusters (e.g., tumor necrosis factor (TNF)-α, interleukin (IL)-8, IL-1β, and CC-chemokine ligand (CCL)17). Specific cytokines and cell clusters were associated with clinical symptoms. TNF-α played an important role in cognitive impairment. Intracellular TNF-α levels in the naïve CD8+ T-cell cluster C16 (CD57 naïve CD8+ T) and natural killer (NK) cell cluster C32 (CD57 CD28 NK) were negatively correlated with Montreal Cognitive Assessment scores. The C16 cluster affected cognitive function and motor symptoms. Increased TNF-α and decreased interferon-γ expression in C16 correlated with increased Unified Parkinson’s Disease Rating Scale III scores in patients with PD. In summary, we developed a more detailed cytokine and chemokine map of peripheral specific CD8+ T cell and NK cell subsets, which revealed disrupted secretory function in patients with PD and provided unique clues for further mechanistic exploration.

PMID:37491350 | DOI:10.1038/s41531-023-00559-0