FOCUS AREAS

SAS/STAT Topics

SAS/STAT Software

STDRATE Procedure


The STDRATE procedure computes direct standardized rates and risks for study populations, rate and risk differences, and rate and risk ratios. The following are highlights of the STDRATE procedure's features:

  • computes normal, lognormal, and gamma distribution confidence intervals for directly standardized rates and risks
  • compares two directly standardized rates or risks from different populations
  • provides Mantel-Haenszel estimates for homogeneous effects across strata
  • computes indirect standardized rates and risks, including standardized morbidity/mortality ratio(SMR)
  • computes normal, lognormal, and Poisson distribution confidence intervals for SMR
  • computes the attributable fraction and population attributable fraction by using either indirect standardization or Mantel-Haenszel estimation
  • automatically produces the following plots by using ODS Graphics:
    • proportion of exposed time or sample size for each stratum in the populations
    • proportion of exposed time or sample size for each stratum in the populations
    • stratum-specific rate estimates and their confidence limits of populations
    • stratum-specific risk estimates and their confidence limits of populations
    • SMR for each stratum in the populations
  • performs BY group processing, which enables you to obtain separate analyses on grouped observations

For further details see the SAS/STAT User's Guide: The STDRATE Procedure
( PDF | HTML )

Examples