Multiple Linear Regression Analysis Research Articles

Sex Differences in Cardiovascular Risk Profiles of Patients with Rheumatoid Arthritis: Results from an Italian Multicentre Cohort

Objective: The effect of sex and gender-related variables on the evaluation of cardiovascular (CV) risk in rheumatoid arthritis patients has been poorly explored. We investigated the differences in CV risk features and scores according to sex in a wide rheumatoid arthritis (RA) cohort. Methods: This is a cross-sectional analysis of a consecutive RA cohort. Disease-specific clinical and serologic variables, traditional CV risk factors and the 10-year CV risk calculated by the SCORE-2, Progetto CUORE and Expanded Risk Score-RA algorithms were compared in males and females. Results: A total of 820 patients (193 men, 627 women) were included. Disease activity was similar between the two sexes. A significantly higher prevalence of traditional CV risk factors and higher mean CV risk scores were detected in male compared to female patients. In the multiple linear regression analysis, a higher HAQ, csDMARD use and ACPA positivity were significantly associated with an increased CV risk in females, while b/tsDMARDs was associated with a lower CV risk in males according to different algorithms. Conclusions: The distribution of traditional CV risk factors and the 10-year risk of CV disease significantly differed in female and male patients despite similar disease activity. Disease-specific variables may contribute differently to CV risk according to sex. The CV screening in RA should also take into account the different distribution of CV risk factors between sexes.

Trends and Factors Related to Quality of Life in Patients with Inflammatory Bowel Disease.

Inflammatory bowel disease (IBD) affects health-related quality of life (HRQoL). The Short Inflammatory Bowel Disease Questionnaire (SIBDQ) score is strongly correlated with HRQoL in IBD patients. This study aimed to assess the factors influencing HRQoL in IBD patients. In this prospective study, all patients with ulcerative colitis (UC) and Crohn's disease (CD) completed the SIBDQ at enrollment; some patients also completed a second SIBDQ at follow-up. Multiple linear regression analysis was used to determine associations between SIBDQ scores and clinical factors. A total of 1,020 patients participated (UC, 67%; CD, 33%). The median SIBDQ score was 52 (interquartile range, 44 to 59). In UC patients, the stool frequency (β=-2.333, p<0.001), Physician Global Assessment score (β=-3.950, p<0.001), fecal calprotectin level (β=-4.014, p<0.001), and corticosteroid use (β=-4.809, p=0.006) were negatively correlated with the SIBDQ score. In CD patients, the number of diarrhea episodes per day (β=-1.467, p=0.024) and Crohn's Disease Activity Index score (β=-0.045, p<0.001) were negatively correlated with the SIBDQ score. A total of 202 patients completed the second SIBDQ within a mean of 3.4 years. The distributions of SIBDQ score changes were as follows: decrease >10%, 28%; -10%<change<10%, 29%; and increase >10%, 43%. In both the initial SIBDQ and follow-up SIBDQ, scores for items pertaining to systemic symptoms (tension and fatigue) were relatively low. Bowel movement-related problems significantly affect the HRQoL of both UC and CD patients. IBD patients scored lower on SIBDQ items related to general well-being. After 3 years of follow-up at the IBD clinic, 43% of patients showed a significant improvement in HRQoL.

Stored Energy and Recovery: A Key Factor in Post-stroke Sarcopenia Management

Introduction: This study aimed to determine the effects of Stored Energy on changes in body weight (BW) and skeletal muscle mass (SMM) in patients with post-acute stroke and sarcopenia. Methods: This retrospective cohort study included patients with stroke and sarcopenia consecutively admitted to a Japanese rehabilitation hospital between 2015 and 2022. Sarcopenia was diagnosed based on the Asian Working Group for Sarcopenia in 2019 criteria. Total Stored Energy (kcal) was defined as total energy intake minus total energy requirements during hospitalization, and energy requirements were estimated as actual BW (kg) × 30 (kcal/day). Multiple regression analysis was used to adjust for the effects of confounders and to analyze the association between Total Stored Energy divided by length of hospital stay (= Stored Energy) and changes in BW and SMM during hospitalization. Results: Of the total 556 patients, 193 patients (mean age, 80 years; 43% male) were analyzed. The median (IQR) Total Stored Energy was -1544 (-18524, 16566) kcal and Stored Energy was -23 (-169, 165) kcal/day; 90 patients had Stored Energy &gt; 0. Multiple linear regression analysis showed that Stored Energy was independently and positively associated with BW gain (β=0.412, P&lt;0.001) and SMM gain (β=0.263, P&lt;0.001). Conclusion: Stored Energy has a positive impact on BW and SMM in patients with post-acute stroke and sarcopenia.

Analisis Faktor-Faktor yang Memengaruhi Pendapatan Petani Mangga (Mangifera indica L.) di Desa Sumberjaya Kecamatan Tempuran Kabupaten Karawang

Mango is one type of fruit that has high economic value and is popular in many countries, including Indonesia. According to data from BPS Karawang Regency, Tempuran District is one of the largest mango producers in Karawang Regency. The decline in mango fruit production in Tempuran Subdistrict is one of the problems in mango fruit cultivation which causes a lack of net income received by mango farmers. The purpose of this study is to determine the effect of land area, total production, selling price, labor, production costs, plant age and number of plants simultaneously and partially on the income of mango farmers. This research was conducted in Sumberjaya Village, Tempuran District, Karawang Regency. The research method used in this research is descriptive quantitative. The research data used are primary data and secondary data. Primary data used was obtained from interviews using a questionnaire. Secondary data used was obtained from books, journals, previous research reports and data from the Central Bureau of Statistics of Karawang Regency and related agencies. The sample was determined using the proportionate stratified random sampling method. The data analysis technique used was multiple linear regression analysis using SPSS 22. The results showed that the variables of land, amount of production, selling price, labor, production costs, plant age and number of plants had a significant influence simultaneously on the income of mango farmers. The variables of land, amount of production, and selling price partially have a significant positive effect. The variables of labor and production costs partially have a significant negative effect. The variables of plant age and number of plants partially do not have a significant influence on the income of mango farmers.

Association between Time with Open Ductus Arteriosus and Outcomes in Congenital Diaphragmatic Hernia.

While a patent ductus arteriosus (PDA) helps offload the right ventricle in the acute congenital diaphragmatic hernia (CDH)-associated pulmonary hypertension, its role on long-term outcomes in CDH has not been investigated. Our objective was to examine associations of the PDA with long-term clinical outcomes in CDH. A single-center retrospective descriptive study of 122 CDH patients dichotomized by duration with PDA, as ≤14 versus >14 postnatal days (PND) and ≤30 versus >30 PND. Fisher's exact test, Wilcoxon rank-sum test, and multiple linear and logistic regression analyses were used for analyses. In unadjusted and adjusted for CDH severity comparisons, patients with PDA >14 PND and >30 PND had a higher risk of death, longer length of stay, mechanical ventilation duration, and need for tracheostomy, diuretics, and PH medications at discharge. A PDA beyond the newborn period is associated with adverse outcomes in infants with CDH.

Effectiveness of AR-Based Formative Peer Assessment on Chinese Writing Performance of Students with Different Cognitive Styles

The ability to communicate effectively in writing and produce clear and cohesive text is a necessary skill in both educational settings and the workplace, yet many young students struggle to organize their thoughts and engage in deep thinking. To address these challenges, an augmented reality (AR) application titled “Explore Wild Animals” has been used to help students organize information; however, it may not accommodate different cognitive styles. Integrating formative peer assessment (FPA) strategy into AR-based instruction can enhance knowledge construction and address diverse cognitive needs. This study, conducted from May to June 2023, empirically investigates the effects of FPA in an AR environment on the writing performance of learners with field-independent (FI) and field-dependent (FD) cognitive styles. A total of 89 fifth-grade pupils from China were randomly assigned to two groups: one group adopting FPA in an AR environment (AR-FPA), and the other group adopting FPA in a conventional PowerPoint (PPT) version 2410 environment (FPA). The results of a two-way analysis of covariance (ANCOVA) indicate that the AR-FPA group outperformed the FPA group in writing performance. Specifically, FI learners benefitted more from the AR-FPA approach, while FD learners performed better with the FPA approach. However, multiple linear regression analysis reveals that the peer feedback quality and features showed little to no significant correlation with feedback providers’ writing performance, regardless of cognitive style. These results highlight the effectiveness of integrating AR and FPA in enhancing educational outcomes, providing practical insights for promoting the sustainability of technology-enhanced learning and teaching practices.

Key Factors Influencing Leadership Effectiveness in Diverse Workplaces in Fuzhou City, Fujian Province, China

he cultural and economic landscape of Fuzhou City in Fujian Province, China, is rich and diverse. Management effectiveness and emotional intelligence in diverse workplaces in Fuzhou City, Fujian Province, China, have been the subject of related research. The significance of emotional intelligence in fostering a productive workplace is a hot topic, as it allows individuals to recognize, understand, and manage their own emotions and those of others (Kargeti, 2023). Additionally, leadership effectiveness is influenced by emotional intelligence dimensions such as self-awareness, self-regulation, motivation, empathy, and social skills (Tian, 2022). Therefore, this study aims to investigate the factors influencing Leadership Effectiveness based on 5 aspects: Demographic Factors, Emotional Intelligence, Cultural Diversity in Organization, Communication Strategies, and Leadership Styles. The quantitative method is applied. Descriptive statistics such as frequency, percent frequency, the arithmetic mean, and the standard deviation are used to analyze the data collected from questionnaires. Suitable Inferential Statistical Methods are used to test the hypothesis, particularly the Independent Samples t-test, the One-way ANOVA, and the Multiple linear Regression Analysis. The results obtained from the study indicate that differences in Marital Status, Age, Educational Level, Monthly Income, and Working Experiences generate differences in Leadership Effectiveness. Based on the Multiple Linear Regression Analysis, all aspects of Emotional Intelligence (Self-awareness, Self-regulation, Motivation, Empathy, and Social Skills), Cultural Diversity in Organization (Diversity, Equity, Inclusion, and Belonging), Communication Strategies (Awareness and Understanding, Communication Quality, Accessibility, and Employee Engagement), and Leadership Styles (Decision-making Leadership Styles, Everyday Leadership Styles, Beyond Everyday-work Leadership Styles, Values-based Leadership Styles) are found out to have a positive impact on Leadership Effectiveness.

PENGARUH UKURAN PERUSAHAAN, PROFITABILITAS, DAN LEVERAGE TERHADAP TARIF PAJAK EFEKTIF (Studi Kasus pada Sektor Energi yang Terdaftar di Bursa Efek Indonesia Periode 2019-2022)

Taxes are one of the biggest contributions for the country. Therefore, the government tries to maximize tax revenue to finance the country's development needs. However, this is contrary to the company's objectives, which want the company's effective tax rate to decrease further away from the statutory tax rate. This research aims to know the effect of firm size, profitability, and leverage on effective tax rate. The sample selection used a purposive sampling technique and obtained 52 samples. Data analysis using multiple linear regression analysis with the IBM SPSS version 26 program. The research results show that firm size has a positive effect on the effective tax rate, profitability and leverage have a negative effect on the effective tax rate. Simultaneously company size, profitability and leverage influence the effective tax rate.

Pengaruh Realisasi Pajak Kendaraan Bermotor, Bea Balik Nama Kendaraan Bermotor, Dan Retribusi Daerah Terhadap Pendapatan Asli Daerah Kota Bandar Lampung Tahun 2020-2023

This study aims to determine the effect of the Realization of Motor Vehicle Tax (PKB), Motor Vehicle Name Return Duty (BBNKB), and Regional Levy on Regional Original Revenue (PAD) of Bandar Lampung City. The independent variable contains PKB, BBNKB, and Regional Levy while the bound variable is PAD. This study uses a Quantitative Method by processing data. The sample in this study is the number of PKB, BBNKB and Regional Levy receipts from 2020 - 2023 (monthly data) as many as 48 samples. The analysis in this study is multiple linear regression analysis, classical assumption test, and hypothesis test with a significance level of 5%. From the results of the research that has been carried out, it shows that PKB, BBNKB and Regional Levy together (Simultaneous) have a significant effect of 86.4% while the remaining 23.6% are affected by other variables outside this study.

The relationship between leisure activity participation and cognitive function among older Chinese adults: the differences across gender and age

As population aging increased globally, this study aimed to examine the relationship between leisure activity participation and cognitive function in the older Chinese population and the gender and age differences in this relationship. A total of 12526 individuals aged 60 years and older from the 2018 Chinese Longitudinal Healthy Longevity Survey were obtained for this study. Multiple linear regression analysis was used to explore the relationship. This study found productive, physical, intellectual, recreational and social activities were associated with cognitive function. Males enjoyed extra benefits from recreational activities compared with females. Females enjoyed extra benefits from productive activities and social activities compared with males. Older age enjoyed extra benefits from productive activities, physical activities, intellectual activities, recreational activities, social activities in comparison with younger age. Thus, Chinese older adults need to make efforts to increase the time and variety of leisure activities, especially for the oldest old. Compared with other types of leisure activities, it’s more important for old men to participate in recreational activities, and for old women to participate in productive activities and social activities.

Effect of neuromuscular control on the shoulder function of patients with healed rotator cuff and those with retear after arthroscopic rotator cuff repair.

To compare functional outcomes such as muscle strength, neuromuscular control and patient-reported outcomes (PROs) between patients with healed rotator cuffs and those with retears after arthroscopic rotator cuff repair (RCR). One hundred and nine patients who underwent arthroscopic RCR were included (85 in the healed group, 24 in the retear group). Shoulder muscle strength and neuromuscular control index (acceleration time [AT]) were evaluated using an isokinetic device. PROs were assessed using the pain visual analogue scale (VAS), Simple Shoulder Test (SST), American Shoulder and Elbow Surgeons (ASES) and University of California at Los Angeles (UCLA) scores. Continuous variables were compared using independent t tests. Multiple linear regression analysis was used to identify the influence of the predictor variables on the dependent variable. The muscle strength and ATs for external rotators (ERs), internal rotators (IRs) and forward flexors as well as PROs including VAS, SST and ASES scores, were not significantly different between the two groups pre- and postoperatively (n.s.). Multiple linear regression analysis revealed that postoperative ATs for the IRs (p = 0.006) and ERs (p = 0.028) in the operated shoulders were closely associated with the postoperative UCLA score. Compared with the healed group after arthroscopic RCR, the retear group had no clinically relevant differences in muscle strength, ATs and PROs, including VAS, SST, ASES and UCLA scores. However, postoperative ATs for IRs and ERs in the operated shoulders were a significant predictor of postoperative UCLA scores. Therefore, clinicians and therapists need to be aware of the importance of neuromuscular control in patients who have undergone arthroscopic RCR and prioritize therapeutic exercises to restore neuromuscular control. Level III.

Cultural Intelligence and Organisational Performance among the Staff of Federal Polytechnic, Ilaro, Ogun State

This study investigates the impact of cultural intelligence (CI) on organisational performance among the staff of the Federal Polytechnic, Ilaro, Ogun State, Nigeria. The research targeted all 989 staff members, with a sample size of 278, determined via Cochran's formula and selected through simple random sampling. Data was collected through a structured questionnaire using a 4-point Likert scale and disseminated via Google Forms. The instrument demonstrated high validity and reliability, with a Cronbach’s Alpha of 0.880. Multiple linear regression analysis performed with SPSS indicated that CI, especially its cognitive and metacognitive dimensions, significantly affects organisational performance, shown by an R-squared value of 0.542. Cognitive intelligence enhances problem-solving, innovation, and adaptability, while metacognitive intelligence fosters reflective practices and teaching effectiveness. The study underscores the significance of CI in diverse educational settings and recommends tailored CI training and ongoing professional development to foster an inclusive and high-performing workplace

Road Freight Demand Forecasting Using National Accounts’ Data—The Case of Cereals

This paper investigates the potential of utilising historical agricultural production data for enhancing road freight transport forecasting, focusing on cereal production. This study applies a multiple linear regression analysis using national statistical accounts and secondary data. The data were sourced from Finland’s Statistics Agency and the Natural Resources Institute. The analysis identifies an observable correlation between agricultural production and road freight volumes, although this correlation is not statistically significant. The highest adjusted R² observed in the models was 0.62. The analysis reveals that previous years’ production data can help forecast future road freight volumes, with vehicle mileage estimable from recent production and stock levels. Additionally, annual percentage changes in the volume of transported cereals can be partially predicted by the changes in total available cereals and opening stocks from two years prior. This exploratory research highlights the untapped predictive potential of agricultural production variables in forecasting road freight demand, suggesting areas for further forecasting enhancement.

Influence of Diabetes Mellitus on Neurological Recovery in Older Patients With Cervical Spinal Cord Injury Without Bone Injury: A Retrospective Multicenter Study.

Retrospective study. To investigate the impact of diabetes mellitus on neurological recovery and determine the relationship between moderate-severe diabetes and neurological recovery in patients with cervical spinal cord injury (CSCI) without bone injury. A retrospective study was conducted on 389 consecutive patients aged ≥65 years with CSCI without bone injury across 33 medical institutes. The patients were divided into a nondiabetic group (n = 270) and a diabetic group (n = 119). Neurological outcomes were compared between the two groups through propensity score matching. The impact of moderate-severe diabetes (defined as hemoglobin A1c ≥ 7.0% or requiring insulin treatment) on neurological recovery was evaluated through multiple linear regression analysis. Propensity score matching revealed no significant differences between the diabetic and nondiabetic groups in terms of American Spinal Injury Association (ASIA) impairment scale grade and mean total ASIA motor scores (AMS) at 6 months post-injury. Multiple linear regression analysis indicated that age on admission (B = -0.34; 95% confidence interval [CI], -0.59 to -0.08; P = 0.01), dementia (B = -16.50; 95% CI, -24.99 to -8.01; P < 0.01), and baseline total AMS (B = -0.62; 95% CI, -0.72 to -0.51; P < 0.01) were negative predictors of neurological recovery at 6 months post-injury. The presence of moderate-severe diabetes did not influence neurological recovery at 6 months post-injury. Diabetic patients with CSCI without bone injury achieved improvements in neurological function comparable to those of nondiabetic patients. Moderate-severe diabetes did not affect neurological recovery in patients with CSCI without bone injury.

PENGARUH KOMPETENSI SDM, SISTEM INFORMASI AKUNTANSI, DAN SISTEM PENGENDALIAN INTERNAL TERHADAP KUALITAS LAPORAN KEUANGAN DANA BANTUAN OPERASIONAL SEKOLAH (STUDI KASUS SEKOLAH JENJANG SD DI KECAMATAN PANGKALANBARU)

This study aims to examine the effect of HR Competence, Accounting Information Systems and Internal Control Systems on the Quality of Financial Statements of School Operational Assistance Funds at the Pangkalanbaru District Elementary School level. The population in this study were elementary schools that were willing to conduct research in Pangkalanbaru District with a total sample of 13 elementary schools and a total of 37 respondents. Data collection techniques using Purposive Sampling techniques with Quantitative research methods using Questionnaires. Analysis techniques used are descriptive statistical analysis, instrument test, classical assumption test, multiple linear regression analysis and hypothesis testing. The results of this study indicate that HR Competence has a positive and significant effect on the Quality of BOS Fund Financial Statements, Accounting Information Systems has no effect on the Quality of BOS Fund Financial Statements, and Control Systems has a positive and significant effect on the Quality of BOS Fund Financial Statements.

Factors Influencing Implementation of Agricultural Projects in Rural Areas of Rwanda: A Case of Bugesera District

Purpose: The aim of the study is to assess the factors influencing Implementation of Agricultural projects in Bugesera District Eastern Province of Rwanda from 2022-2024. Methodology: The study selected Bugesera District as a study population with 80 target population. The study adopted descriptive survey that involves quantitative approaches. Qualitative analysis was to review the existing Literature, and quantitative involved collecting of data from the field. In this research Bugesera District was study population with 80 target population and sample size of 67%. Yaman formula and then purposive sampling technique was adopted. Both secondary and primary data used. Therefore primary data collected through questionnaires where formulated and forwarded to respondents to gather primary data, SPSS version 25 used in analysis and presentation of data it table, descriptive statistical analysis, was comprised of mean and standard deviation as well as inferential statistics such as Pearson correlation (r) and multiple linear regression analysis. Findings: The study highlighted their opinions with the rate of 58.6% strongly agreed, 26.2 agreed 13.7% indicated neutral, and 2.3% disagreed with mean of 6.5 and standard deviation of 1.76, respondents highlighted their about the statement of stakeholder engagement with high rate of 52.1%, strongly agreed, and 28.9% agreed, 12.7% stated neutral, 3.9% disagreed, 2%strongly disagreed, with mean of 6.3 and standard deviation of 1.78. and lastly 56.5% strongly agreed, 25.5% agreed, 11.9% stated that neutral, 3.9% disagreed, 1.9% strongly disagreed, the statement of training provide knowledge and skill with mean of 6.333 and standard deviation of 1.7. Researcher revealed that training of stakeholders and farmers has positive effects on agricultural project implementation in Bugesera District. Unique Contribution to Theory, Practice and Policy: The researcher recommended to Bugesera District in department of agricultural projects to continue humanize project planning, allow stakeholder involvement and season training of farmers, such that planned project of agriculture implemented at upper level.

Physical Activity Level and Time of Participation in a Water Aerobics Project for the Elderly: Analysis of the Association with Quality of life, Musculoskeletal and Osteoarticular Disorders, Chronic Pain and Body Mass Index

The objective was to analyze the association between the physical activity level (PAL) and time of participation in the practice of water aerobics with the variables successful aging (SA), quality of life (QOL), musculoskeletal and osteoarticular disorders (MOD), chronic pain (CP) and body mass index (BMI). The method has a quantitative, descriptive and cross-sectional design. The non-probabilistic sample, for convenience, comprised 101 elderly people over 60 years of age, of both genders, who regularly participate in water aerobics activities in the city of Dois Irmãos, in the state of Rio Grande do Sul. The following instruments were used: Multidimensional Pain Assessment Scale, EUROHIS-QOL, IPAQ, SOC and Body Mass Index. Descriptive analyses of frequency, comparison, correlation and multiple linear regression were used. The results showed that the irregularly active group has adequate perception of QOL and longer participation in water aerobics activities associated with lower intensity of pain perception. Likewise, better QOL and control attitudes are associated with lower prevalence of MOD.

Association between the plasma ceramide and coronary microvascular resistance

BackgroundPlasma ceramide plays a potentially significant role in the pathogenesis of coronary microvascular dysfunction. However, the relationship between plasma ceramide and coronary microvascular resistance in patients remains unclear. This study aimed to evaluate the association between plasma ceramide levels, as well as their distinct ratios, and coronary microvascular resistance.MethodsThis single-center observational study retrospectively enrolled patients who underwent both ceramide measurement and coronary angiography during hospitalization. The microvascular resistance of the coronary arteries was assessed in all patients using the angiography-derived index of microcirculatory resistance (Angio-IMR). The cumulative coronary microvascular resistance was calculated by summing the microvascular resistance of the three main coronary arteries. Multiple linear and logistic regression analyses were employed to evaluate the relationship between plasma ceramide and cumulative coronary microvascular resistance. Restricted cubic spline (RCS) analysis was conducted to investigate the association between plasma ceramide levels and cumulative coronary microvascular resistance. Receiver operating characteristic (ROC) curves were employed to evaluate the predictive value of plasma ceramide for coronary microvascular resistance. Additionally, subgroup analyses and interaction tests were performed.ResultsA total of 225 patients were included in this study, with a median cumulative coronary microvascular resistance of 48.04 (40.32–56.73). After adjusting for potential confounding factors, both plasma 16:0 ceramide and the 16:0/24:0 ceramide ratio were positively associated with cumulative coronary microvascular resistance [standardized β ± standard error: 75.05 ± 8.46 (P < 0.001) and 91.72 ± 20.41 (P < 0.001), respectively]. Similar independent associations were observed in predicting high cumulative microvascular resistance [β = 8.03 ± 1.91 (P < 0.001) and 9.98 ± 3.88 (P = 0.010), respectively]. Additionally, a significant nonlinear relationship was observed between plasma 16:0 ceramide, the 16:0/24:0 ceramide ratio, and cumulative coronary microvascular resistance (P for nonlinear < 0.05). The ROC analysis revealed that the optimal cut-off for plasma 16:0 ceramide is 0.178 µmol/L, with a specificity of 57.1% and a sensitivity of 91.2%. For the 16:0/24:0 ceramide ratio, the optimal cut-off is 0.072, yielding a specificity of 73.2% and a sensitivity of 54.9%. Subgroup analysis indicated that the association between plasma ceramide and coronary microvascular resistance was trending toward non-significance in patients with acute coronary syndrome (ACS).ConclusionsA significant nonlinear relationship exists between plasma ceramide and coronary microvascular resistance, which holds important clinical implications for the risk stratification of coronary microvascular disease. New insights into the potential effects of ceramides enhance our understanding of the complex mechanisms underlying coronary microvascular disease and warrant further investigation in a broader population.Graphical abstract

Analisis Pengaruh Harga, Kualitas Produk Dan Kualitas Layanan Terhadap Kepuasan Konsumen Distro Nimco Di Kota Yogyakarta

This research aims to determine price, product quality, service quality on consumer satisfaction of Nimco Yogyakarta Distro in Yogyakarta City. This research uses a quantitative approach, the sampling method in this research was carried out by accidental sampling which is part of the nonprobability sampling technique. The population in the research is all consumers who have purchased products at the Nimco Yogyakarta Distro. The data analysis techniques used are the classical assumption test, normality test, multicollinearity test, heteroscedasticity test and multiple linear regression analysis. The hypothesis tests used are the F test (simultaneous test), T test (partial statistical test), and coefficient of determination test (R2). From the multiple linear regression analysis, the equation Y= 8.927+ 0.850 X1+ 0.474+455+ e. Simultaneous test results (F) have been carried out, resulting in Fcount being greater than Ftable (2289.776&gt; 3.18). So it can be seen that price, product quality, and service quality have a simultaneous influence on consumer satisfaction of Nimco Distro in Yogyakarta City. And the partial test (T) produces Fcount which is greater than Ftable (X1 = 3.976 &gt; 1.677. X2 = 4.681 &gt; 1.677. Service has a partial influence on consumer satisfaction at Nimco Distro in Yogyakarta City. The results of this coefficient of determination show that the correlation between the independent variable and the dependent variable is R= 825a. This shows that the price and quality variables have a close relationship to consumer satisfaction at Nimco Distro Yogyakarta.

Pengaruh Promosi dan Citra Merek Terhadap Keputusan Pembelian pada Bengkel Mobil Garasi-In

The purpose of the study was to determine the extent to which the promotion and brand image of the car repair shop influence purchasing decisions. The study used a quantitative method by distributing questionnaires to 97 respondents via Google Form. Data includes instrument analysis to assess validity and reliability, classical assumption tests such as normality tests, heteroscedasticity tests, and multicollinearity tests, hypothesis tests such as t-tests and F-tests, multiple linear regression analysis, and calculating the coefficient of determination. This provides results that promotion and brand image have a significant influence on purchasing decisions. Producing a contribution value of promotion variables and brand image variables to purchasing decisions of 68.8% to purchasing decisions..