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Stata software 16

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STATA software 16.0 is a comprehensive analytical software package designed for data management, statistical analysis, and data visualization. It provides a wide range of statistical tools and features to help researchers, analysts, and professionals in various fields effectively analyze and interpret their data.

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Lab products found in correlation

27 protocols using stata software 16

1

Evaluating Dietary Ultra-Processed Food Intake

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The descriptive results were expressed as mean and standard deviation (SD) for continuous variable. To calculate the frequency related to categorical variables, the prevalence was estimated with their respective 95% CI.
The mean share of all NOVA food groups to the total daily energy intake was estimated. The participants were categorized into five strata in accordance with the quintiles of energy shares from UPF consumption. The association between the quintiles of energy from UPF and total energy and nutrients intake was assessed by the multivariate linear regression model. Quintile 1 was the reference category in all regression analyses. All analyses were adjusted for age, years of study, gestational trimester, social welfare program assistance, and work status. The regression coefficients were presented with their respective confidence intervals (95%). A significance level of 0.05 was considered. The statistical analyses were carried out using Stata software 16 (StataCorp. 2019. Stata Statistical Software: Release 16.1. College Station, TX, USA: StataCorp LLC).
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2

Breast Cancer Screening: DBT vs. DM

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The trial was embedded within the population-based breast cancer screening program BreastScreen Norway, 2016-2017 (17) . The DBT acquisition consisted of nine exposures reconstructed into SM (5) . Independent double reading with consensus, according to usual procedures in the program, was performed. Further details on BreastScreen Norway and the To-Be trial are described elsewhere (5, 17, 18) .
Women participating in the To-Be trial were assigned to DBT+SM or DM by using simple random allocation after (Table E6 [online]). Because the absolute rates of recall, FP, and SDC in VDG 1 differed for DBT+SM and DM, the RRs could not be directly compared.
A P value lower than .05 indicated a significant difference. All analyses (https://github.com/andersskyrud/To-Be_density) were performed with Stata software 16 (College Station, Tex) or R software (version 3.6.1; Vienna, Austria).
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3

COVID-19 Prognosis Analysis

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We analyzed the data with Stata® software 16 (StataCorp, College Station, TX, USA). The results are expressed as mean (M) and standard deviation (SD), and the percentage of subjects was expressed as a percent of the total number of observations (obs), and the p-value was considered significant if <0.05. Confidence intervals (CIs) were calculated at 95%. All differences with a p-value (p) ≤ 0.05 (*) were considered statistically significant. We applied the Cox regression model to study the one-year follow-up by calculating the hazard ratio (Hr); continuous variables were tested with parametric and non-parametric tests. The research is an observational study: for that reason, we calculated treatment effects, with the propensity score matching two groups according to age and comorbidity scores using the Charlson Index: these last factors have a profound role in COVID-19 prognosis [10 (link),11 (link)].
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4

Factors Associated with Cephalosporin Allergy

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Descriptive statistics were expressed as frequencies or as medians with interquartile ranges for categorical and continuous variables, respectively. A logistic regression model was used to assess for variables associated with a cephalosporin allergy label. These variables were selected a priori based on clinical knowledge and previous research in children with other antibiotic allergies and included: sex, race/ethnicity, presence of a chronic condition, private or public insurance, and number of health care visits in the first two years of life.5 (link)
Presence of penicillin allergy label was not incorporated into the regression model because in children, eventually labeled as both cephalosporin and penicillin allergic, the penicillin allergy does not always precede the cephalosporin allergy label. A chi square test was used to determine differences in the frequency of antibiotic prescribing based on allergy label status. A two-sided 5% significance level (P < 0.05) was used for all statistical inferences, and all analyses were conducted using Stata software 16 (StataCorp).
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5

Mortality Risk Factors in Thailand

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All the statistical analyses were performed using STATA software 16.1 (StataCorp LP, College Station, TX, USA). Study data were sample weighted against the total national registered population of Thailand in 2009, and methods for complex survey design analysis were applied (14 (link)). The baseline characteristics of study subjects were compared between groups using descriptive statistics. Parametric and non-parametric tests were applied depending on the distribution of data. Kruskal-Wallis test and chi-square test were used for continuous and categorical variables, respectively. A p < 0.05 was considered statistically significant for all tests. The association between groups and all-cause mortality was explored using univariate and multivariate Cox proportional hazards models. The proportional hazards assumption was checked on the basis of Schoenfeld residuals. There was no evidence that the proportional-hazards assumption was violated. Multivariate models were adjusted for potentially confounding factors, including age, residential area, diabetes, chronic kidney disease, cardiovascular disease, cerebrovascular disease, and history of smoking. The results of multivariate analysis are shown as hazard ratio (HR) and 95% confidence interval (CI) for univariate analysis, and as adjusted hazard ratio (aHR) and 95% CI for multivariate analysis.
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6

Statistical Analysis of Categorical and Quantitative Variables

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All answers were reported as frequency and percentage for categorical variables and as median and interquartile range (p25–p75) for non-normally distributed continuous variables. Statistical differences between groups (age, experience and unit volume) were evaluated using Fisher’s exact test for categorical variables and non-parametric Kruskal–Wallis test for quantitative variables.
Statistical analysis was performed using Stata® software 16.1 (StataCorp LP, College Station, Texas, USA) and a p-value < 0.05 was considered statistically significant.
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7

Delayed CTA Diagnostic Yield Analysis

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The qualitative data were expressed as numbers and percentages. The quantitative data were displayed as mean and SD. The statistical differences in demographic data and follow-up clinical outcomes were compared between the 2 study groups using Fisher’s exact test, the c2 test, and the Mann-Whitney U test. We evaluated the diagnostic yield of delayed CTA using percentages. The data analysis was performed using STATA software 16.1. A significant difference was considered at p < 0.05.
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8

Statistical Analysis of Gene Expression

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Statistical analyses were performed using STATA software 16.0 (StataCorp, College Station, TX, United States) and R software (version 4.2.0). Statistical analysis was performed using unpaired Student’s t and Mann-Whitney U test with respect to Gaussian distribution or not, respectively, unless otherwise indicated. Kruskal-wallis test was performed to compare the expression of genes examined by PCR, and the post-hoc tests within two groups were adjusted by Holm’s correction. Spearman correlation coefficient (ρ) is used to evaluate the correlations between DNA methylation levels of CpG islands and the associated genes expression. Wilcoxon signed-rank test was utilized to compare the expression level of cell cycle and Notch related genes between iCCA and its corresponding normal tissues. Two-way repeated measures Anova was utilized to compare optical densities of CCA cell lines treated with the serial gradient concentration of drugs, which measured more than once. Then simple effect at day 7 was calculated when there were interaction effects between time and dosages. P values were shown as: aP < 0.05, bP < 0.01, and cP < 0.001.
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9

Investigating Job Demands-Resources Model

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Based on the JD-R Theory, we developed a conceptual model, as shown in Figure 1. The figure posits JD and JR directly and indirectly affect task performance because of their effects on burnout and work engagement. In addition, burnout and work engagement also have their own, separate direct effects on task performance.
We conducted analytical analyses using STATA software 16.0. Initially we sought to examine the participants' demographics to determine if there were correlations amongst all the variables. Second, we generated a structural equation modeling (SEM) analysis, to understand the direct and indirect effects of JD-R (the independent variable) on task performance through the hypothesized mediators, burnout, and work engagement using a maximum likelihood method of estimation. We also conducted regression analyses with extensive covariates, including personal characteristics. The results from the regression analyses are similar to those reported here. Results of regression analyses are not provided within this study but can be provided upon request. The common method variance analysis was performed, and the results showed that only 27% of the variance shared by JD-R, work engagement, burnout, and task performance items, suggesting common method variance was not an issue in the data.
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10

Examining ACEs, Mindfulness, and Well-being

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Descriptive and Pearson’s correlation analyses were first undertaken to observe the sample characteristics and the correlations among all variables. Then, we conducted Structural Equation Modeling (SEM) analysis, with a bootstrapping approach of 1000 iterations, to examine the relation between ACEs, mindfulness, and PWB. SEM, differing from regression techniques, allows simultaneous examination of direct and indirect effects through mediating variables [62 (link)]. STATA software 16.0 was used for all analyses. In results not shown, we conducted regression analyses with extensive covariates, including personal and family characteristics, the results of which indicated that the relations among ACE, mindfulness, and PWB were similar with those reported here.
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