An Introduction to Stata for Health Researchers, Fourth Edition: 4th Edition (Paperback) book cover

An Introduction to Stata for Health Researchers, Fourth Edition

4th Edition

By Svend Juul, Morten Frydenberg

Stata Press

346 pages

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Paperback: 9781597181358
pub: 2014-03-21
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Description

An Introduction to Stata for Health Researchers, Fourth Edition methodically covers data management, simple description and analysis, and more advanced analyses often used in health research, including regression models, survival analysis, and evaluation of diagnostic methods. A chapter on graphics explores most graph types and describes how to modify the appearance of a graph before submitting it for publication.

The authors emphasize the importance of good documentation habits to prevent errors and wasted time. Demonstrating the use of strategies and tools for documentation, they provide robust examples and offer the datasets for download online.

Updated to correspond to Stata 13, this fourth edition is written for both Windows and Mac users. It provides improved online documentation, including further reading in online manuals.

Reviews

"While impossible to cover every aspect of statistical analysis in a single book, this book does a nice job of covering the most common methods, from simple to complex, with an emphasis on the common methods seen in the field of health research … ideal to keep on hand as a reference manual."

—Melissa Plegue,University of Michigan in International Statistical Review

Table of Contents

The Basics

Getting Started

Installing and updating Stata

Starting and exiting Stata

Customizing Stata (Windows)

Windows in Stata

Issuing commands

Managing output

Reusing commands

Getting Help—and More

The manuals

Online help

Other resources

Errors and error messages

Stata File Types and Names

Command Syntax

General syntax rules

Syntax diagrams

Lists of variables and numbers

Qualifiers

Weights

Options

Prefixes

Other syntax elements

Version control

Data Management

Variables

Types of variables

Numeric formats

Missing values

Storage types and precision

Date and time variables

String variables

Memory considerations

Getting Data in and out of Stata

Opening and saving Stata data

Entering data

Reading ASCII data

Exchanging data with other programs

Documentation Commands

Labels

Working with labels: an example

Calculations

Generate and replace

Operators and functions in calculations

Extended functions: egen

Recoding variables

Checking correctness of calculations

Numbering observations

Commands Affecting Data Structure

Safeguarding your data

Selecting observations and variables

Renaming and reordering variables

Sorting data

Combining files

Reshaping data

Taking Good Care of Your Data

The audit trail

Collecting and entering data

Data management

Analysis

Protect your data

Archiving the project

Analysis

Description and Simple Analysis

Overview of a dataset

Listing observations

Simple tables for categorical variables

Analyzing continuous variables

Estimating confidence intervals

Immediate commands

Regression Analysis

Linear regression

Regression postestimation

Categorical predictors—factor variables

Interactions in regression models

Logistic regression

Other regression models

Nonindependent observations

Time-to-Event Data

Setting the time scale and event: The stset command

The Kaplan–Meier survival function

Tabulating rates

Cox proportional hazards regression

Preparing data for advanced survival analyses

Advanced survival modeling

Poisson regression

Standardization

Measurement and Diagnosis

Comparing two measurements

Reproducibility of measurements

Using tests for diagnosis

Miscellaneous

Random samples, simulations

Power and sample-size analysis

Commands that influence program flow

Decimal periods and commas

Logging output permanently

Other analyses

Graphs

Graphs

Anatomy of a graph

Anatomy of graph commands

Graph size

Schemes

Graph options: axes

Graph options: text elements

Plot options: markers, lines, etc.

Graph examples

By-graphs and combined graphs

Using dialogs to generate commands

Saving, displaying, and printing graphs

Advanced Topics

Advanced Topics

Using saved results

Macros and scalars

Some useful commands

Programs

Debugging programs

Appendices

A: Stata Manuals

B: Exercises

C: Shortcuts and Keystrokes

References

Indices

About the Authors

Svend Juul is a former associate professor, now a part-time lecturer, in epidemiology, at the School of Public Health, Aarhus University. Juul has extensive experience in teaching epidemiology to medical students and others and in teaching Stata and other computer programs to PhD students in the health sciences.

Morten Frydenberg is an associate professor of biostatistics at the School of Public Health, Aarhus University. He has a PhD in theoretical statistics and more than 20 years of experience as a biostatistical consultant in health sciences. Frydenberg has taught numerous courses in applied biostatistics at both graduate and postgraduate levels.

Subject Categories

BISAC Subject Codes/Headings:
MAT029000
MATHEMATICS / Probability & Statistics / General