Learn how to calculate overall frequencies in the data set, and how to add these to the categorical Table 1 shell for presentation.
- [Instructor] Welcome to Chapter 5, Section 3…where we start filling in our Table 1s.…So, both Table 1s, the categorical format…and the continuous format, call for overall…frequencies in each stratum.…For example, stratifying by sex, male and female,…and stratifying by Hispanic status.…So what we do in this section is these…univariate calculations, because there is only…one variable being used at a time.…We have to put this info in both Table 1s,…but I'll start by demonstrating doing asthma…and alcohol frequencies and putting…them in categorical Table 1.…
Ready to start filling in the tables?…Let's go to our R code.…Okay, we'll ignore this read code at the top…because we already have our analytic data…set in memory, and we will get right to the analysis.…This is where your data dictionary is so helpful.…Let's start with asthma.…See the code?…We make a frequency table named AsthmaFreq.…Then, I listed it here so we could see it.…If we make a table out of it,…it doesn't display unless you call the table.…Remember when we did this when we did our…
This detailed, practical course is designed to help those in the field of public health, medicine, and data science to edit, analyze, and interpret data. Learn how to code new variables, use the forward-stepwise modeling process, and document your decisions. Find out how to visualize results by generating charts and graphics, and how to add tables and figures to your documentation. This course helps equip you to independently design, develop, and execute a full BRFSS analysis, and even publish your results in scientific publications or journals.
- Reviewing survey data and documentation
- Conducting a BRFSS analysis
- Understanding naming conventions
- Editing variables
- Reviewing distributions
- Generating an analytic dataset
- Developing descriptive statistics to answer prespecified hypotheses
- Preparing publication-worthy tables and plots
Skill Level Advanced
1. What Is the BRFSS?
2. Designing Your Metadata
3. Reading in Data and Applying Exclusions
4. Preparing for Descriptive Analysis
5. Conducting Descriptive Analysis
Making a frequency macro4m 8s
6. Descriptive Analysis: Weights and Tests
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