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Tools for epidemiologists

Standardization of rates

  • Direct standardization
  • Indirect standardization

Tables for epidemiologists

  • 2 x 2 and 2 x 2 stratified tables for longitudinal, cohort study, case–control, and matched case–control data
  • Odds ratio, incidence ratio, risk ratio, risk difference, and attributable fraction
  • Confidence intervals for the above
  • Chi-squared, Fisher’s exact, and Mantel–Haenszel tests
  • Tests for homogeneity
  • Choice of weights for stratified tables: Mantel–Haenszel, standardized, or user specified
  • Exact McNemar test for matched case–control data
  • Tabulated odds and odds ratios
  • Score test for linear trend

Table symmetry and marginal homogeneity tests

  • n x n tables where there is one-to-one matching of cases and controls
  • Asymptotic symmetry and marginal homogeneity tests
  • Exact symmetry tests
  • Transmission disequilibrium test (TDT)

U.S. Food and Drug Administration (FDA) submittals

  • Read and write data in the format required by the FDA for new drug application (NDA) submittals
  • Describe the contents of data written in the FDA required format

See New in Stata 11 for more about what was added in Stata Release 11.

Receiver Operating Characteristic (ROC) curves

  • Calculate area under curve
  • Fit maximum-likelihood ROC models assuming a binormal distribution of the latent variable
  • Test equality of two or more ROC areas
  • Test equality of ROC area against a “gold-standard” ROC curve
  • Raw and Bonferroni-adjusted significance probability
  • Šidák’s adjustment for multiple comparisons

Generalized linear models for the binomial family

  • Individual-level or grouped data
  • Odds ratios, risk ratios, health ratios, and risk differences

Pharmacokinetics

  • Pharmacokinetic measures from time-and-concentration subject-level data
  • Tests that measurement is normally distributed
  • Analysis of data from crossover design experiment
  • Tests of bioequivalence for two treatments

ICD-9-CM diagnostic and procedure codes

  • Verify that a variable contains valid codes
  • Modify codes to display in standard format
  • V26, V25, V24, V22, V21, V19, V18, and V16 codes
  • Display a description of codes
  • Display the identity of source
  • More
Stata 11
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