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Stata mp 16

Manufactured by StataCorp
Sourced in United States

Stata/MP 16.1 is a statistical software package developed by StataCorp. It provides advanced data analysis and modeling capabilities for researchers and professionals across various fields. Stata/MP 16.1 is designed to handle large datasets and perform computationally intensive tasks efficiently.

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203 protocols using stata mp 16

1

Alcoholism Factors and Tendencies

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After multiple imputations of missing values in the sample (n = 11,547), the binary correlation between influencing factors and alcoholism tendencies was described by chi-squared analysis. Data were cleared and processed by StataMP 16. Lastly, we used multivariate logic regression to test each hypothesis, in the theoretical model, through StataMP 16, with p values < 0.05 signifying statistical significance.
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2

Maternal Disability and Postpartum Depression

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Descriptive statistics and bivariate analysis using the chi-square test were
conducted to examine differences in the distribution of sample characteristics
by disability status. Associations between life stressors and disability status
were determined using the chi-square test. These analyses were repeated to
determine whether any associations existed between disability status and life
stressors among mothers with PDS. Unadjusted logistic regression models were
built to estimate the effects of SLEs (four different groups and number of SLEs)
on PDS among mothers with and without disabilities. Next, these logistic
regression models were adjusted for the included covariate measures displayed in
Table 1. The
data were weighted to account for the complex survey design of PRAMS. All
analyses were conducted using Stata/MP 16.1 (College Station, TX).
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3

Antibiotics and Colorectal Cancer Risk

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Tests for differences in characteristics between cases and controls were performed using a Pearson χ2 test and 2-sample t test. Conditional logistic regression, adjusting for selected covariates as potential confounders, was used to investigate associations between antibiotics use and risk of CRC, reported as odds ratios (ORs) with 95% confidence intervals (CIs). The reference category for antibiotics use was “no use.” To evaluate any potential dose-response effect, we conducted tests for trends in which categorical antibiotics exposures were expressed as a continuous variable. Trend tests were conducted for all analyses except the analyses with binary antibiotics exposures. Multiplicative interaction terms were introduced to assess effect modification by sex, and Q-statistics with 1 degree of freedom were used to test for heterogeneity of estimates between men and women (using binary categories of antibiotics use). Based on the study hypothesis, a number of prespecified subgroup analyses (sex, age, and anatomical tumor site) and sensitivity analyses (excluding the 2 years prior to case diagnosis) were performed, which are described in detail in the Supplementary Methods (available online). All statistical tests, 2-sided with a statistical significance level of .05, were performed using Stata/MP 16.1 (Stata Corp, College Station, TX).
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4

Glucose Levels and Stroke Outcomes

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The clinical characteristics of the patients were summarized, and specific subgroups were described using descriptive statistics. After descriptive analyses, the categorical variables of the groups were compared using the Fisher’s exact test or Pearson’s chi-square test, while their continuous variables were compared using the Student’s t-test and ANOVA test. In this study, the initial glucose level (≥ 140 or < 140 mg/dl) and NIHSS (≥ 10 or < 10 points) were considered as categorical parameters.
Univariate analyses were performed to identify the odds ratio across the outcome parameters (END, in-hospital death, poor functional outcome at 90 days and 1-year). Also, logistic analyses were performed with clinical variables and laboratory results. Age, sex, baseline NIHSS, stroke subtype, atrial fibrillation, previous stroke, smoking, LDL cholesterol level, onset to needle time, mechanical thrombectomy, and baseline blood glucose level for END, in-hospital death, poor outcome at 90 days or poor outcome at 1-year were estimated by a logistic regression analysis [11 (link), 18 (link)].
The odds ratios (ORs) and 95% confidence interval (CI) were calculated. All P-values were 2-sided, and statistical significance was defined as a P-value less than 0.05. STATA/MP 16.1 (StataCorp., College Station, TX, USA) was used in all the statistical analyses.
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5

Diagnostic Algorithm for Lynch Syndrome

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Continuous variables are presented as median and standard deviation, and categorical variables are presented as proportions. Patient characteristics were compared between cohorts, using two-sided tests. For continuous variables we used a non-parametric test (Kruskal–Wallis test) and for categorical variables a Fisher’s exact test. The proportion of patients that underwent each test in the algorithm was calculated and the sensitivity of the overall diagnostic system for detecting LS was assessed for the original cohort and the intervention period (combining manual and automated strategies). Statistical analyses were performed using Stata/MP 16.1.
To control for false discovery rate, reported P-values are adjusted P-values corrected using the Benjamini & Hochberg procedure in R. Adjusted P-values <0.05 were considered statistically significant.
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6

Comparative Analysis of ML Models for ECG

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To compare the composition and predictive accuracy of the ML models using ECG features measured on 12-lead ECG by the 12SL algorithm (GE Marquette Electronics, Milwaukee, WI, USA), we repeated the described above ML steps with the input of the additional 652 variables, which included frontal QRS-T angle and fine 12-lead ECG features (amplitudes, durations, and areas of all ECG waves). We compared random forests, CNN, lasso, adaptive lasso, plugin-based lasso, and elastic net with penalized and post-selection coefficients. Due to a large number of input variables (n = 695), we did not test the performance of logistic regression and ridge models, as nearly all the predictors were kept in the model. For an adequate comparison of CNN with VCG and ECG input, a model with ECG input did not include VCG variables and included only measurements of main ECG waves, without ‘prime’ ECG waveforms (153 variables).
Statistical ML analysis was performed using STATA MP 16.1 (StataCorp LP, College Station, TX, USA). P-value <0.05 was considered statistically significant. STATA code is provided at https://github.com/Tereshchenkolab/statistics.
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7

Comprehensive Analysis of Neuropsychological Profiles

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All statistical analyses were performed using Stata/MP 16.1. Statistical tests of normality were performed using the Shapiro–Wilk test. Demographics were compared between groups using either linear regression (age and education) or a chi-squared test (sex). Linear regressions adjusting for age and sex were used to analyse the MMSE, CDR® plus NACC FTLD and PASS scores. Both linguistic and non-linguistic symptoms were compared in each disease group versus controls using linear regressions adjusting for age and sex and 95% bias-corrected bootstrapped confidence intervals with 2000 repetitions (as there was minimal variation from 0 in severity scores for the control group). Comparison of these symptoms between groups used an ordinal logistic regression adjusting for age and sex. The neuropsychological assessments and cortical and subcortical volumes were compared using linear regression models adjusting for age and sex, as well as scanner type for the imaging analysis; 95% bias-corrected bootstrapped confidence intervals with 2000 repetitions were used if data were not normally distributed.
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8

Estimating Age-Weighted VSMU Across Income Groups

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We summarized our findings by aggregating by age-group-year across all countries within an income group (LICs, LMICs, and UMICs). To do so, we estimated the age-group-weighted mean VSMU for each age-group-year. To compute the age weights, we used country-specific projections available from the United Nations Population Division’s World Population Prospects [9 ]. However, since age-group-specific population projections were only available for 2020, 2025, and 2030, we aggregated results and estimated 95% uncertainty ranges (URs) for these 3 years only.
All computational simulations were conducted using Stata MP/16.1 [24 ].
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9

Analyzing Cigarillo Product Preferences

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First, we used descriptive statistics to characterize the analytic sample in terms of demographics, cigar use behaviors and preferences, and use of other substances and tobacco products. Next, we calculated the mean importance of each cigarillo product characteristic overall, as well as by demographics, cigar use behaviors and preferences, and use of other substances and tobacco products. We then examined differences in mean importance using t-tests for variables with two categories and one-way ANOVA tests for variables with more than two categories. For significant ANOVA tests, we ran post-hoc pairwise comparisons using Bonferroni adjustment to identify which categories differed from one another in terms of product importance. All statistical tests were conducted in Stata/MP 16.1 [22 ].
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10

Assessing CPI Coverage of Canadian Dietary Intake

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Proportions and means were generated to describe CPI coverage in relation to total intake (g), energy (kcal), macronutrients (g), total sugar (g), sodium (mg), total dietary fibre (g) and food groups (g). Quartiles of CPI coverage were then assigned based on the proportion of total individual intake (g) captured by the CPI. Group mean intakes of energy and food components were compared across quartiles, applying a Bonferroni correction to obtain a Bonferroni corrected P-value (α = 0·05).
The analysis was conducted on STATA/MP 16.1 statistical software. The CCHS-N Public Use Microdata File was accessed through the Data Liberation Initiative at Dalhousie University. Accompanying Statistics Canada sampling weights were used to create weighted point estimates which represented the 34·5 million Canadians based on the Canadian Dietary Reference Intake age-sex groups and the 2011 Canadian Census population size(18 ). The Canadian Dietary Reference Intake age-sex groups refer to Health Canada groupings used to determine the recommended intakes of nutrients and energy for a healthy individual based on their age and sex(23 ). Bootstrap replication weights (B 500) provided by Statistics Canada were used to generate 95 % CI that took into account the multi-stage survey design used by the CCHS-N(18 ).
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